Team GPR

[F5 Dave]

Some would say I've seen the light; I say I'm temporarily blinded by actually finishing a days

The TZR100 has gone under the bench until I can figure out what to do with the slipped sleeve.
.
We'll see if I talk to you at the next meeting Judas:crazy:

[jasonu]

Well its been a few months away from posting ( and crazyman getting chased off the KB forum)...
.

Do tell...

[koba]

We'll see if I talk to you at the next meeting Judas:crazy:

Paid to Kiss men?

I always had my suspicions... :shifty:

[Bert]

Paid to Kiss men?

I always had my suspicions... :shifty:

Hummmm I'm sure I saw you on your better halfs 4t over summer. :moon::motu:

[koba]

Hummmm I'm sure I saw you on your better halfs 4t over summer. :moon::motu:

Any port in a storm...

[seymour14]

Spot the big names in this old gem!

Maybe a source for hunting down old rigs too...

Article from August of 1998.

[mr bucketracer]

that was my first meeting back after a year and a half 2 years after breaking my arm , found b grade to slow so called easing my way back into it (-; to getting some sec's in A then breaking the cluch cable starting at the back banging into gear going though the feild leading and bining it big time lol

[F5 Dave]

Well my 100 went to Ola, then Str8' then Sketchy where the motor resides on his bench while the turbo is slotted into replacement chassis.

[Skunk]

Well my 100 went to Ola, then Str8' then Sketchy where the motor resides on his bench while the turbo is slotted into replacement chassis.

Supercharged... Turbo is too easy.


If it ain't smokin' - it's broken.

[Bert]

that was my first meeting back after a year and a half 2 years after breaking my arm , found b grade to slow so called easing my way back into it (-; to getting some sec's in A then breaking the cluch cable starting at the back banging into gear going though the feild leading and bining it big time lol

Shit we were just talking about that meeting last week. I recall ass'ing off left right and center (and in the pits; not my finest work). God knows how I got 9th... Don't recall finishing anything that day.
One of my last meetings before uni sucked all my racing money dry (and student loan was piling up).
But I'm sure that was 1997 not 1998 but could be wrong...

[F5 Dave]

Supercharged... Turbo is too easy.


If it ain't smokin' - it's broken. oh yeah, I've seen the bits enough, but spiny things are all the same to me

[mr bucketracer]

287761287760[ATTACH=CONFIG]happy getting 77hp out of a nc30 engine bike weighing 105 kg's , in most cases i have seen a 20hp gain going to a 444 kit , so could get 97hp on a good day (-: but would need a new crank and rods for that ..have to thank grumph for his input in exhaurts awhile back

[Grumph]

287761287760[ATTACH=CONFIG]happy getting 77hp out of a nc30 engine bike weighing 105 kg's , in most cases i have seen a 20hp gain going to a 444 kit , so could get 97hp on a good day (-: but would need a new crank and rods for that ..have to thank grumph for his input in exhaurts awhile back

That's a shitload of HP from one of them...back in the day, the best i ever heard claimed for the factory Jap F3 bikes was 80HP.
Why the crank and rods needed for bigger ? i know there's not a lot of pistons available - a guy down here CNC'd a full set some years back to raise the com on his - you'd know by now why he did that...lol. No one want to bore the awkward block ?

[husaberg]

That's a shitload of HP from one of them...back in the day, the best i ever heard claimed for the factory Jap F3 bikes was 80HP.
Why the crank and rods needed for bigger ? i know there's not a lot of pistons available - a guy down here CNC'd a full set some years back to raise the com on his - you'd know by now why he did that...lol. No one want to bore the awkward block ?

And trying to get the gear lash right and the Squish at the same time... bloody honda should have set it up same as a RC30.

[mr bucketracer]

That's a shitload of HP from one of them...back in the day, the best i ever heard claimed for the factory Jap F3 bikes was 80HP.
Why the crank and rods needed for bigger ? i know there's not a lot of pistons available - a guy down here CNC'd a full set some years back to raise the com on his - you'd know by now why he did that...lol. No one want to bore the awkward block ?main reason is a big bore kit and heaver pistons , the rods are horrable spinly things as you would know, acording to g force developments they start breaking cranks with to much hp , lost a heaps of torque to get that power which would not suit the standard heavy bike i guess

[mr bucketracer]

i was told the full factory race kit was 84 hp . some guy i raced years ago with just the once worked for hrc . not that faster rider but was claming 76 hp from a rvf 400

[seymour14]

I would like to give Team New Zealand some of that horsepower at the moment! :sweatdrop

[F5 Dave]

Why? Bunch of rich tofts poncing about in boats Who cares, as long as they get it over with and shut up about it.

[seymour14]

Why? Bunch of rich tofts poncing about in boats Who cares, as long as they get it over with and shut up about it.

Nah, the boys on the boats are still racers, just like us (just get paid more, but we don't chuck off at the GP racers who get paid way more too), it's only the poxy owners who are the money bags, and their gobshite lawyers.

Your right though, the sooner it is over, the sooner we can get on with the real racing. Bring on the BOB!!!

[seymour14]

Hey bro, while looking for a photo of my KR250, see what I found. A little Benelli bonanza, shame it gave you so much trouble, they were either on song or a hair pulling episode in the making.

Good old "666 The Beast".

[mr bucketracer]

i should of got a award for the most seizures in one lap ....6

[seymour14]

Thought I would share some of my photographs of the Classic Registers Pukekohe festival of 2008.

The NSU leaning across the fence is that of Don Lowe's of Bunnythorpe, the front fork leg snapped seconds after starting the race, he was lucky to stay on as it careered off the track. Nice cross-section of motorcycling engineering skill on show.

[seymour14]

Magnificent Brough Superior, the legendary Mike Hailwood's Honda, amongst other superb machines.

[husaberg]

Magnificent Brough Superior, the legendary Mike Hailwood's Honda, amongst other superb machines.

Yowling would love that Scott:rolleyes:

See that BSL has a Sharkfin too. So maybe they will let it race in F1 this year.

[Yow Ling]

Yowling would love that Scott:rolleyes:

.

Yes the Yowling Scotts, 3 in one place very nice

[mr bucketracer]

number 666 is why i gave up 2 strokes

[Yow Ling]

number 666 is why i gave up 2 strokes

you just need more luckier number !

[seymour14]

you just need more luckier number !

Is 13 available? :laugh:

[mr bucketracer]

Is 13 available? :laugh:looks like 105 is shit:wacko:

[Bert]

287761287760[ATTACH=CONFIG]happy getting 77hp out of a nc30 engine bike weighing 105 kg's , in most cases i have seen a 20hp gain going to a 444 kit , so could get 97hp on a good day (-: but would need a new crank and rods for that ..have to thank grumph for his input in exhausts awhile back


http://youtu.be/NT8Ff34UlUI

and the long awaited update on the GPR007 Aprilia 550 (first real start; sorting out maps etc).. sorry about the shitty video Scotty..


http://youtu.be/Zl6wHqOJxbw



And the good news is that GPR010 has been started (& GPR011 is on the drawing board); come on Billy this must mean we can get Homologation for GPR frames and I can ride my twosmoker 250 in superlites?? :msn-wink::niceone:

[richban]

http://youtu.be/NT8Ff34UlUI

and the long awaited update on the GPR007 Aprilia 550 (first real start; sorting out maps etc).. sorry about the shitty video Scotty..


http://youtu.be/Zl6wHqOJxbw



And the good news is that GPR010 has been started (& GPR011 is on the drawing board); come on Billy this must mean we can get Homologation for GPR frames and I can ride my twosmoker 250 in superlites?? :msn-wink::niceone:

Good stuff. Perfect time to remind scott I get a ride on the 550 when its track ready.

I have a sickness. Just purchased another 250 2 stroke. This time a honda. Oh and your knock gauge is here.

[F5 Dave]

CR250? Sweet! - trail season is starting again.

Flywheel weight & soften it up a bit should be the biz,

[richban]

CR250? Sweet! - trail season is starting again.

Flywheel weight & soften it up a bit should be the biz,

Good idea. Next on the list. No this is a nsr mc18 with a 21 or 28 engine in it. Just so happens I have a 21 frame and swing arm in the shed. But will leave it Alone till the rgv is finished.

[seymour14]

Good idea. Next on the list. No this is a nsr mc18 with a 21 or 28 engine in it. Just so happens I have a 21 frame and swing arm in the shed. But will leave it Alone till the rgv is finished.

Wish I had kept this one.

[Bert]

Good stuff. Perfect time to remind scott I get a ride on the 550 when its track ready.

I have a sickness. Just purchased another 250 2 stroke. This time a honda. Oh and your knock gauge is here.

Hand up for crash test dummy :Punk::Punk:

I guess the thing to remember is that 550 is the size of the bucket (read RS125) and is smaller than the only tig-craft in NZ. So it's going to be very very cool.:love:

So bucket racing & tinkering (frames suspension engines and fueling) has improved our understanding and enabled some big gains on larger bikes; which should be on show at a track near you very soon.

Been reading up heaps on fuel injection systems to get a handle on oxygen sensors and A/F and mapping. Looking forward to playing some more.

[richban]

Wish I had kept this one.

Yes. But purple? :sick:

[seymour14]

Yes. But purple? :sick:

Yeah a bit sick, mate of mine was moving to Australia and had painted all the parts off the bike, sold it to me still partially dismantled, we just put it together and flicked it off. Could have done with a repaint, but that's the new owners problem now.

[seymour14]

Old video of Crazyman at Kaitoke, probably last year, riders might remember the occasion.

Who are those masked burglars at the end....?:shifty:


http://youtu.be/wEs6keCDHPM

[quallman1234]

Old video of Crazyman at Kaitoke, probably last year, riders might remember the occasion.

Who are those masked burglars at the end....?:shifty:


http://youtu.be/wEs6keCDHPM

Hey look its me :).

[seymour14]

To prevent us all from forgetting about racing, here's some fucken racing.

I've been drinking tonight, it's Friday, so what, I'll drink tomorrow too, so what, it's Saturday, then I'll drink some more, so what.......enjoy your racing and stop pissing me off....blurghhhh......fucken carrots......blurghhhh, fucken Crazyman's brew.......blurgghhhhhhhhhhh!!!!!!


http://youtu.be/RFxuQ7nIh68

[TZ350]

Been reading up heaps on fuel injection systems to get a handle on oxygen sensors and A/F and mapping. Looking forward to playing some more.

I am real keen on getting on with my fuel injection project too but have been distracted by Team efforts to get two or three F5 2T's track ready. Had two of them on the dyno recently with disappointing results so far. But things could get better as Chambers has come up with a way of making a single exhaust port that is 75% wide and has a perfectly flat/straight top timing edge for ultra abrupt exhaust port opening. Anyway hope to test that idea on the dyno next week, then if it works out OK I can get back onto setting up the Beasts EFI. Bert please post some more about your EFI project.

[mr bucketracer]

288231288232the bob bike nealy finshed , can't get that magic 25hp

[mr bucketracer]

288233and seymores sv400 only .4 of a hp under spec

[Yow Ling]

288231288232the bob bike nealy finshed , can't get that magic 25hp

Just enter a different value in the flywheel mass in the setup 26 hp no problem !

[Bert]

I am real keen on getting on with my fuel injection project too but have been distracted by Team efforts to get two or three F5 2T's track ready. Had two of them on the dyno recently with disappointing results so far. But things could get better as Chambers has come up with a way of making a single exhaust port that is 75% wide and has a perfectly flat/straight top timing edge for ultra abrupt exhaust port opening. Anyway hope to test that idea on the dyno next week, then if it works out OK I can get back onto setting up the Beasts EFI. Bert please post some more about your EFI project.

Our current project is sorting out master boasters GPR550 v2. A shitty software platform called tuneboy connected up to the stock ECU; crashes continusily. but none the less it makes since and once oxygen sensors are sorted we should be seeing some dyno results.

Now stumbled across this, Great read (if you can read Italian then use google translate).. Right up your ally Husa.
http://50iniepoca.forumfree.it/?t=37128293

[mr bucketracer]

Just enter a different value in the flywheel mass in the setup 26 hp no problem !could do but who would i be fooling lol so meany things out side the engine that makes good power but some don't work together

[F5 Dave]

Will Tune ECU work, is Kiehin or Sagem. Works a treat on Triumph ecu.

[Bert]

Will Tune ECU work, is Kiehin or Sagem. Works a treat on Triumph ecu.

Maybe, maybe the same core software (as this too will happily tune triumph and Ktm and others). Biggest issue seems to be the ecu backfeeding voltage or locking up the USB port, thus locking up software... But the cable is part of the package and one would have thought well tested against common issues like this.... Hohumm.
Maybe I'll try another pc (but this is the lucky laptop that always works with oddball hardwhare: good old XP).

[F5 Dave]

Ahh yes it will be same but USB can be a swine, 232 much more resilient, which is why I bought an obsolete $30 Lappy from werk with a serial port, a cable can be had for $15 or so. Tuneecu saw is free.

[TZ350]

Wobbly has talked a lot about the need for resistor caps and plugs for RF suppression when using a USB to Serial conversion cable. I to have brought an older laptop with a serial port just to get away from the extra problems that come with trying to use a USB port for RS232 serial work. Although serial is not so prone to RF, with the Ignitec ignition you still need the resistor caps and plugs to protect the ignitions CPU.

[F5 Dave]

Ha, I've just been in the garage today and noticed the VAG cable on the wall and it's a USB, confused with Ignitech one. Res caps I was going to say. But beaten to the punch by Rob.

[Moooools]

Wobbly has talked a lot about the need for resistor caps and plugs for RF suppression when using a USB to Serial conversion cable. I to have brought an older laptop with a serial port just to get away from the extra problems that come with trying to use a USB port for RS232 serial work. Although serial is not so prone to RF, with the Ignitec ignition you still need the resistor caps and plugs to protect the ignitions CPU.

Yep and yep and yep.

We had mad issues not running resistor plugs and trying to communicate to our ECU over USB. Would just cut out at high rpm. A bit unnerving when you can't see what the shit is going on.

[Bert]

We will start by saying a big thanks to:

Skunk & Skunk Control:
(Andrew and Leigh) for get the north Island boys sorted, dealing with multiple ferry bookings (we we all kept changing our minds).
Sorting the VMCC truck and supplying their own Van (plus doing almost all the driving) + homemade lunches / snacks / drinks and bloody good coffee.
plus giving us Palmy boys a place to stay on Wednesday.

Tony Mclaughlin:
For very kindly offering us (all north Islanders) a place to stay, sheds to fix bikes (and even parts for one unlucky/lucky Nth Islander); BBQs, drinks and great conversation.
It made life so much easier than transporting people 4/5 different places around Christchurch.
Thanks Tony, for opening your home to all of us smelly norfties; any-time you are in the north (Manfield, Taupo etc. and want a place to stay; then please sing out).
Also thanks to the others that offered up floor space at the last minute; when our accommodation turned pair shaped (thanks very much for the offers).

Brendan and the Sth Islanders.
Great meeting, great track and most importantly bloody good laughs all round.
Again; if any of you want to come north there is always free accommodation.

Scotty:
Building up all the bikes, then building up a trailer to take them all...
plus finding some time to brew enough "Giff Bootleg" for all of us.:2thumbsup

https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-prn2/1380550_10151810368612771_517817552_n.jpg

So to give a clear scale of the adventure; it started Wednesday (Palmy to welly leg; trailer and 5 bikes, 4 blokes); this grew to 11 bikes in welly (between the truck and trailer).

Friday Fun Day at Ruapuna:
at a $120 bucks a pop (and full track), the buckets stayed on the trailer.
Richard 2 had his lipstick RGV250 (pinky); Kieren on the Duc and Skunk on the ZXRD400 (which was great to see).
The result from the day was barrel of laughs and two bikes to fix (blown base gasket on Pinky, and pistons meeting heads on the ZXRD); so a chunk of Friday night spent tearing down two strokes, making gaskets.
Also one bucket racer didn't do any prep and loaded a non working FXR on the trailer (which had to be fixed as well); turns out the issue was electrical and Tony kindly supplied a replacement stater.
The race was on to see what bikes would be going first.... Two more norfies arrived too make it nine in total.

BOB.
Arrived and unloaded / sorted out equipment (no mean feet given how many bikes and bits stacked&packed).
A big thanks to everyone that helped us unload and set up; sucked into helping: when just looking at the Northern bikes.
(many hands made light work; especially when some riders were off doing their own thing)...

http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=288773&d=1382238741
Cheers TZ for the photo (Grump and me, chatting about frame design and other shit).

Sighting Laps. more most of us it was our first time (while the videos were great; it was a totally different story on track); and what a cool track it is....

Qualifying races: F5dave managed pole, Kieren & Scotty managed 3/4 rows the rest of us down the back.

http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=288706&d=1382155319
(Great photo Racing Dave)

BOB (55 minutes of fun, pain, a few bruises, lessons, flat tyre and lost contact lens).
F5Dave (I'm sure he will tell his own story; so I won't)
Kieren: Was on the pace right from the start; had a spill in the Hairpin got up and work hard all the way to the finish to unlap himself.
Scotty: after getting up in the main pack; ended up DNF with flat tyre.
Kerry: Finished
Richard E: Finished
Richard 3: Finished
Skunk: DNS Started a bit late (but finish); after getting delayed chatting to Grump and Co.
Me: DNF. good start off the back and caught up to the others, but then rode like a girls blouse and finally had to pull off due to lack of vision (lost contact lens) and turning into a moving chicane (yea i know, worst excuse ever)....

Last three races of the day:
Everyone made sure they got their money's worth.
Both Tony and Brendan took my GPR150 out and showed that it could be up the front (first time I'd seen & heard it on the track).


Everyone was smashed after the racing; lots of laps and heaps of fun (the night ended rather early).

Sunday; early start and long drive back north...


Summary; massive event we all wished we could stay for Graymouth.
we will all start saving our pocket money and return next year.

Unfinished business for next year
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=288921&d=1382334656
Cheers Suzi Q


Great meeting all of you and putting faces to the KB & FXR forum names.

Roll on Taupo in two weeks.

[F5 Dave]

. . .
Me: DNF. good start off the back and caught up to the others, but then rode like a girls blouse and finally had to pull off due to lack of vision (lost contact lens) and turning into a moving chicane (yea i know, worst excuse ever). . .
Are you kidding? Worked for Freddie Spencer. :clap:

[Bert]

Are you kidding? Worked for Freddie Spencer. :clap:

nope....
I could hardily figure out/see what part of the track I was on (and black tarmac and green grass blended quite well also); let alone see braking points and other bikes.
Might has carried on if I'd done more laps, but I really didn't want to make an ass of myself and stuff up others fun; being in the way doing random shit....

[F5 Dave]

I meant; as excuses go, if you can find one a world champ has used - then you're onto a winner. I couldn't race without my lenses.

[mr bucketracer]

hard going starting both races on the back row going up to the bob . started on the 3thd row number 13 on the grid in the end , was never going to win it but the bike was more than capable of it if i rode it hard enough:( . realy just wanted to finsh a top 5 . track was real good but wish the straght was smaller not to give the engine a to harder time

[Bert]

well Mike - Yow Ling; you have come up trumps.:niceone:


http://youtu.be/5yOFlM2Cs_A

[husaberg]

Bert did Greg ask you what you wanted for Xmas:innocent:

[Bert]

Bert did Greg ask you what you wanted for Xmas:innocent:

???? nope, well i don't think so ????

But I did mention if he could get rid of my postie sidecar; i might have room for another few bikes in the shed (but wife will eventually cut my allowance off if she sees any more two wheeled things in the shed).
sh!t I've caught the bike hoarding disease of the Griffiths... :doh:

[husaberg]

???? nope, well i don't think so ????



<img src="http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=288773&d=1382238741" height="340px"/><img src="http://fashiondesignblog.com/wp-content/uploads/2012/12/Dressing-up-like-Santa-this-Christmas.jpg" height="340px"/>

[Bert]

<img src="http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=288773&d=1382238741" height="340px"/><img src="http://fashiondesignblog.com/wp-content/uploads/2012/12/Dressing-up-like-Santa-this-Christmas.jpg" height="340px"/>

yea I did have a wee chuckle at the time.

Mr Grump was not what I expected.

[husaberg]

Yeah bet he is only going to give you a lump of coal for blowing his cover.......
Engineer.

Beard ...check

Glasses....check.

Hes a good guy he said you were OK.........

Thank god you never posted pics of Kickaha.......
[R RATED]http://25.media.tumblr.com/4eb3503b612b62d261a5b63fec9b122c/tumblr_mjkb05Wi6v1qgolyao3_1280.jpg[/R RATED][R RATED]http://31.media.tumblr.com/a33f6363dbe6042f7269b44397de1db9/tumblr_mjkb05Wi6v1qgolyao1_1280.jpg[/R RATED]

[koba]

but wife will eventually cut my allowance off if she sees any more two wheeled things in the shed

Not the worst thing for her to cut off!

[Kickaha]

Thank god you never posted pics of Kickaha.......
They could have got some good pics as the GN lapped one of the GPR bikes a few times

[husaberg]

Not the worst thing for her to cut off!

Yeah.......


I was trying to find the GN250 pics and found this.

Koba is a cutie...


None of the other bucket guys were mentioned:confused:

[Bert]

They could have got some good pics as the GN lapped one of the GPR bikes a few times

Yea, hats off to you Kickaha.
Didn't do the bike justice and deserve all the shit chucked this direction.
But there's always next year.

You could alway come north and we could return the favour.

[Grumph]

[QUOTE=Bert;yea I did have a wee chuckle at the time.

Mr Grump was not what I expected.[/QUOTE]

The resemblance has been remarked on before....but once you meet me you realise grump is a description, not a user name...

Nice to put names to faces and talk frames with the youngest frame builder I've yet struck. By the time he's my age who knows what he'll be building....

[F5 Dave]

I think by then the 6 finger Hillbilly Juice will have rendered him inoperable.

Actually there is something you should have asked Mike to make labels for. Richard was very impressed the next day at the lack of headache. I was in no state to try any, just too tired, but I've finally caught up with some sleep to my now normal 'parent of two preschoolers' level.

I can only dream of my Teenage years, staying up late but sleeping in like a cat.

[Bert]

I think by then the 6 finger Hillbilly Juice will have rendered him inoperable.

Actually there is something you should have asked Mike to make labels for. Richard was very impressed the next day at the lack of headache. .

That's a bit rough Dave. The Griff Bootleg is a carefully crafted work of art; much like his frames.

[F5 Dave]

Hey, I didn't name it.

[mr bucketracer]

The resemblance has been remarked on before....but once you meet me you realise grump is a description, not a user name...

Nice to put names to faces and talk frames with the youngest frame builder I've yet struck. By the time he's my age who knows what he'll be building....so i don't look 90 like i feel (-;

[Grumph]

so i don't look 90 like i feel (-;

A mere child.....

i saw your answer on the CB125 tuning thread and immediately wanted to know if the OP is lighter than you...that would negate any weight advantage the FXR may have....Why is it that the keenest bucket racers are always too big for the class ?

[F5 Dave]

is it the reverse of small mans syndrome?

[mr bucketracer]

A mere child.....

i saw your answer on the CB125 tuning thread and immediately wanted to know if the OP is lighter than you...that would negate any weight advantage the FXR may have....Why is it that the keenest bucket racers are always too big for the class ?i just raced agenst one last year , nothing in speed or out the corners but he was about 75 kgs to my 100 ...bike weight i have no idea in differts but should out do it now with the new bike...i hope

[F5 Dave]

i just raced agenst one last year , . . what. A mere child? I raced against one last week. Lil bstd beat me. Should be banned in bucket racing.

[husaberg]

A mere child.....

i saw your answer on the CB125 tuning thread and immediately wanted to know if the OP is lighter than you...that would negate any weight advantage the FXR may have....Why is it that the keenest bucket racers are always too big for the class ?

That's a Bloody good question............

Begs another

Who is the Worst Salad Dodger.?

I am 173cm and 82kg. 39 years old
Maybe weight for age handicap system

[Bert]

That's a Bloody good question............

Begs another

Who is the Worst Salad Dodger.?

I am 173 and 82kg.

180 and 95... And I love salad...

Scotty must be 184 & 100.

[mr bucketracer]

180 and 95... And I love salad...

Scotty must be 184 & 100.close 6-1 ..104 kg so you have a hp on me (-;

[seymour14]

I hear there might be a new secret weapon developed at GPR central tonight......:baby:

[mr bucketracer]

I hear there might be a new secret weapon developed at GPR central tonight......:baby:has been..

[Bert]

I hear there might be a new secret weapon developed at GPR central tonight......:baby:


has been..

You lot are like the strouds...:bleh: not much to do in Palmy....
Better start building a motocross track and get the next generation GPR team members Underway.:niceone:

Congrats Regs.

[Grumph]

close 6-1 ..104 kg so you have a hp on me (-;

Many years back a guy I'll just call lambretta asked me how he could improve the performance of his bucket....i just looked at him and said "lose a leg"...."right one is probably best" He was 6' 6" at least and built like an All Black lock....

New sprog in the family ? Do you do spaceframe prams too ?

[TZ350]

Who is the Worst Salad Dodger.?
I am 173cm and 82kg. 39 years old
180 and 95... And i love salad...
Scotty must be 184 & 100.

289044

186 & 85 ... was 103

[Farmaken]

Holy shit TZ, must shout you a few pies :cool:

Congrats Regan, hope they are both well.

[Bert]

Hi guys.

As the Title says, I'm looking for a rooted head (given there was a few last weekend, I suspect there is likely more that have accumulated over the years; sitting in sheds).

Reason.
We have wanted to experiment with inlet angle modifications (cutting, welding and likely butchering) etc.

Happily pay freight.

[richban]

Hi guys.

As the Title says, I'm looking for a rooted head (given there was a few last weekend, I suspect there is likely more that have accumulated over the years; sitting in sheds).

Reason.
We have wanted to experiment with inlet angle modifications (cutting, welding and likely butchering) etc.

Happily pay freight.

Injection?

[F5 Dave]

Yeah congrats Reg & partner (who probably did most of the work).

[Bert]

Injection?

Or maybe getting out the furnice???


Yeah congrats Reg & partner (who probably did most of the work).

His fast racing days might be behind him?? :cry:

[F5 Dave]

yeah I got 2 so I'm twice as slow now.

[richban]

yeah I got 2 so I'm twice as slow now.

I should have another one. I think i'm getting quicker.

[husaberg]

I should have another one. I think i'm getting quicker.

If its mentioned by the wife it might not necessarily be a compliment:rolleyes:
ps the weight and height Rich.....

[mr bucketracer]

I should have another one. I think i'm getting quicker.good idea any ladys out there:woohoo:

[mr bucketracer]

If its mentioned by the wife it might not necessarily be a compliment:rolleyes:
ps the weight and height Rich.....8 foot 10 and 600 pounds:laugh:

[richban]

If its mentioned by the wife it might not necessarily be a compliment:rolleyes:
ps the weight and height Rich.....

187cm 92kg.

She would say quick, I would say efficient.

[mr bucketracer]

http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=289083&stc=1&d=1382766042
just a boring pic

[seymour14]

http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=289083&stc=1&d=1382766042
just a boring pic

BOB day....

[seymour14]

Well, seems like the lads had a rip roaring time at Taupo, and some entertaining riding amongst Rich and the GPR boys, loved to have been there, but had some more sedate riding to do at a Classic Rally for our local Manawatu Classic Motorcycle Club, was still chuffed to take out a trophy for Best other British! So successful weekend all round it would seem.

[seymour14]

Little selection of Bucket and other photos from the Griff archives.....

We think number 24 in the last photo is a Southie, but someone will know for sure. Let us know if you can identify anyone.

Don't shoot yourself F5 Dave, noooooooo!!!! :ar15:

[Kickaha]

We think number 24 in the last photo is a Southie
24 is Glen Hayward, used to work for Wynns at that time hence the colour scheme

[seymour14]

This used to be big in Palmy, and it is probably the only video done of the thing! So enjoy this, and wonder why it is no more.....
http://youtu.be/X_EQFibQKDU

[F5 Dave]

Those things were silly. You'd think everything was ok then you'd put both feet on the pegs and the weight transfer would shoot you off to the side

[speedpro]

My right shoulder still hurts now and then. We went there with a bunch of sidecar guys who were at Fiona Gifford-Moore's birthday, I think. Total mayhem, I got fired sideways into the wall. I needed physio on my shoulder for weeks afterwards. Funny looking back about the overalls and the bread boards strapped to your leg.

[cotswold]

I liked them

[John_H]

Might be a lot of fun but my god did they look fukn stupid!

[seymour14]

I liked them

Same here. Think someone (or maybe more then one) ended up hitting the beam supports though, pretty banged up from what I hear, and that put paid to that!

[F5 Dave]

We had a rained off bucket day in Manuwhatoo so we rode in full bucket gear. Maybe that didn't help flexibility,

[mr bucketracer]

me and regan lived there once a week 10 bucks for a heap of fun

[seymour14]

About 50 classic motorcycles of all sorts turned up, but what really made me chuckle was a bike that I first rode in 1981, it was the first bike I ever rode, and Don Lowe had just finished building it only half an hour before we turned up at his garage in Bunnythorpe that day.

I was a lot shorter when I first rode it, but I was surprised to be able to still ride it over 30 years later! Crapped off only the once, and lucky for me who can't get my knee down, there was really no way in hell I could get my knee down on this contraption!

Don built the engine and everything, centrifugal clutch and 32cc of unrivaled raw power.:eek:

[Henk]

Using that for the NI series Kerry?

[seymour14]

Using that for the NI series Kerry?

Was told I need to stick it in there and get under the opposition more often, this should do the trick. Not sure about my starts though, need someone to steady me.

Less distance to fall is a bonus.:ride:

[Henk]

Was told I need to stick it in there and get under the opposition more often, this should do the trick. Not sure about my starts though, need someone to steady me.

Less distance to fall is a bonus.:ride:

You can keep balanced by leaning you front wheel on the back of my bike if you like. Promise not to roll forward so you land on your face.

[seymour14]

Man I feel old now, look at the cars in the background of these photos!!

Proof of riding the weeny bike back in 1981, and a Bucket racing sidecar stolen from the Giant in "Jack and the Beanstalk"....

Don has a "one wheeler" as well, where you sit inside the wheel, will try and find an image of this engineering treat as well.

Looking a lot younger and leaner there Masterblaster, "the good old days"....

[Bert]

Man I feel old now, look at the cars in the background of these photos!!

Proof of riding the weeny bike back in 1981.....

Looking a lot younger and leaner there Masterblaster, "the good old days"....

time hasn't been kind....
:nya::nya::nya::nya:
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=289539&d=1383948254http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=289529&d=1383899551:killingme:killingme

[seymour14]

Does my arse look big on this????:lol:

[mr bucketracer]

I hear there might be a new secret weapon developed at GPR central tonight......:baby:sis was saying you have a new secret weapon on the way:facepalm:

[seymour14]

sis was saying you have a new secret weapon on the way:facepalm:

Maybe I have, little Shaun is your young twin, I think we have a motorcycling genius in the making....

I have created a GPR monster. :eek5:

[cotswold]

http://www.youtube.com/watch?v=2h1hVhHQ1i0&sns=fb

[husaberg]

off topic but what the heck

http://www.youtube.com/watch?feature=player_detailpage&v=ND4EA0dnAM8

[husaberg]

http://www.youtube.com/watch?feature=player_embedded&v=c1pJIVqCC1E

[seymour14]

A very talented man, take note all you youngens....learn a practical craft and take pride in implementing it.

[steamroller]

very very happy tonight thanks to my bro he he:psst::psst::psst:

[Bert]

very very happy tonight thanks to my bro he he:psst::psst::psst:

YES you should be!!! :first::first::niceone:

Here's some funnies from the dyno room...


http://youtu.be/qMrdcOwj9L0


http://youtu.be/GLaS0EO4UgM

Svx hasn't been kind to Mr S G.

[mr bucketracer]

mr steamroller is a happy man , made a new change ..26hp .12.6 footpounds of touqe . some things which i did 6 months ago failed and now know where i went wrong . could not work out why after the gp it was only 22hp so forgot about his bike and worked on mine lol

[steamroller]

mr steamroller is a happy man , made a new change ..26hp .12.6 footpounds of touqe . some things which i did 6 months ago failed and now know where i went wrong . could not work out why after the gp it was only 22hp so forgot about his bike and worked on mine lol

26hp an still more to come what can i say:not:

[husaberg]

Seen a real cool trick Jerry branch used to use on the dyno (not interia) in was in the Kevin Cameron book......
He used to have a pump on the carb breather tubes and he used to either put a vacuum on the breather or put pressure on it to see what the altered fueling did at each point of the re range it was even calibrated so he knew how much to altered it beats changing jets constantly.

He also said about the fuel not in the Dyno room away from hot engines lol

then again i guess that what a lappy and injection on the Aprilia is for

[mr bucketracer]

26hp an still more to come what can i say:not:5 psi in the rear tire would not of helped with a good reading

[mr bucketracer]

Seen a real cool trick Jerry branch used to use on the dyno (not interia) in was in the Kevin Cameron book......
He used to have a pump on the carb breather tubes and he used to either put a vacuum on the breather or put pressure on it to see what the altered fueling did at each point of the re range it was even calibrated so he knew how much to altered it beats changing jets constantly.

He also said about the fuel not in the Dyno room away from hot engines lol

then again i guess that what a lappy and injection on the Aprilia is forhave to read your post more to understand , gets rid of this last bit because is worth another hp lol and who want to know now i'm on a roll

[husaberg]

have to read your post more to understand , gets rid of this last bit because is worth annther hp

carb breather tubes vent to atmosphere and react to atmosphere (not as much as we would like)
what he used to be is alter the atmosphere the carbs actually read.
by either a vac or pressure to richen or lean the mixture. only talking slight pressures here. like an old school air bleed on an turbo waste gate.
same reason pressure fed airbox's are vented into the air box on the ram air bikes

[Bert]

carb breather tubes vent to atmosphere and react to atmosphere (not as much as we would like)
what he used to be is alter the atmosphere the carbs actually read.
by either a vac or pressure to richen or lean the mixture. only talking slight pressures here. like an old school air bleed on an turbo waste gate.
same reason pressure fed airbox's are vented into the air box on the ram air bikes

Nice Husa.

Very do-a-ble. In fact thinking about it Ive the perfect bits sitting under my desk.
Matched up with an oxygen sensor, one really could clean jetting up very quickly...

[husaberg]

Nice Husa.

Very do-a-ble. In fact thinking about it Ive the perfect bits sitting under my desk.
Matched up with an oxygen sensor, one really could clean jetting up very quickly...

he allegedily had it so he could match the percentage on the jetting he looked for the torque of course at each rev interval.
But o2 sensors were not so much around at all then.

http://books.google.co.nz/books?id=J7tQp2LtsYIC&pg=PA49&lpg=PA49&dq=kevin+cameron+jerry+branch+rich&source=bl&ots=qdU4zrowut&sig=Rmdi2CffpFy8cobvkIqMHrqmK4E&hl=en&sa=X&ei=HFmDUvmCCsrrkAWH54CADA&ved=0CC4Q6AEwAQ#v=onepage&q=kevin%20cameron%20jerry%20branch%20rich&f=false

[Skunk]

Ive the perfect bits sitting under my desk.
.

Why am I not surprised at that statement?


If it ain't smokin' - it's broken.

[mr bucketracer]

http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=289794&stc=1&d=1384399235stock fxr 14.5hp .steemroller 26 hp .. had some mix results with engines 21 to 26 now heaps outside the engine to make power but getting on top of it i think lol

[kel]

http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=289794&stc=1&d=1384399235stock fxr 14.5hp .steemroller 26 hp .. had some mix results with engines 21 to 26 now heaps outside the engine to make power but getting on top of it i think lol

Strikingly similar power output i.e. 8.5k to 12k. Of course mine is the least powerful of the ESE bikes for the Nth Island series.

[mr bucketracer]

think i will have another go at a 2 stroke been 16 years but now you can use better stuff like pistons . most probley only 2-3 things more to try on the fxr but unless i go to a 4 cyclinder cut down to a 2 or a ktm motor to get more rev's i'm wasting my time but do like the low reving fxr's because they don't drop valves ...well not yet lol

[mr bucketracer]

Strikingly similar power output i.e. 8.5k to 12k. Of course mine is the least powerful of the ESE bikes for the Nth Island series. i have been looking at this , realy like the power ..nice touque !! i think you have one of the best 2 strokes for that reson

[cotswold]

i have been looking at this , realy like the power ..nice touque !! i think you have one of the best 2 strokes for that reson

get a room

[richban]

http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=289794&stc=1&d=1384399235stock fxr 14.5hp .steemroller 26 hp .. had some mix results with engines 21 to 26 now heaps outside the engine to make power but getting on top of it i think lol

Looking good for sure. Also looks like at least 1 more hiding at the top. Not sure what that header length is but might be worth chopping 100mm off for a try. I think if you had an ignitech to play with you will be at 28 29 in know time. One graph from my engine looked like that. Added one more deg at the top and bingo more power to the limiter. Must get mine up again for a back to back. I think there is nothing init now. I am still chasing the rich spot in the middle of mine. Hopefully will have a needle soon that I can get to work.

[mr bucketracer]

Looking good for sure. Also looks like at least 1 more hiding at the top. Not sure what that header length is but might be worth chopping 100mm off for a try. I think if you had an ignitech to play with you will be at 28 29 in know time. One graph from my engine looked like that. Added one more deg at the top and bingo more power to the limiter. Must get mine up again for a back to back. I think there is nothing init now. I am still chasing the rich spot in the middle of mine. Hopefully will have a needle soon that I can get to work.yes think there is more in the exhaust and have one more to make so will try that, yours is right there and like you said get the midrange up and will run alround better, i should look at the needles in my zxr400 to try in your bike , will try somthing like a ignitech somtime

[Bert]

http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=289794&stc=1&d=1384399235stock fxr 14.5hp .steemroller 26 hp .. had some mix results with engines 21 to 26 now heaps outside the engine to make power but getting on top of it i think lol

:weep: GPR works motor qualifying rules....
First you must prove to Mr bucketracer that you can ride, before he will dial in the extra 5 ponies...
the worst you perform the more he dials it back to force you to ride harder (bugger having you as a father; old school tough love, nice)....:lol:

Looking forward the the Nth Island championship ..

[mr bucketracer]

:weep: GPR works motor qualifying rules....
First you must prove to Mr bucketracer that you can ride, before he will dial in the extra 5 ponies...
the worst you perform the more he dials it back to force you to ride harder (bugger having you as a father; old school tough love, nice)....:lol:

Looking forward the the Nth Island championship ..lol or just don't leave your bike here or i will take the best engine (-; ..sorry steamy:Police:

[Bert]

lol or just don't leave your bike here or i will take the best engine (-; ..sorry steamy:Police:

Right that's what has happened...

From the racing forum.


Saw this on Facebook this morning.

<iframe width="420" height="315" src="//www.youtube.com/embed/_iByjBSljfM" frameborder="0" allowfullscreen></iframe>

[steamroller]

lol or just don't leave your bike here or i will take the best engine (-; ..sorry steamy:Police:

Haha lucky i got the bike back now, now im ready to eat them 2 smokers:scooter:

[Gigglebutton]

http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=289794&stc=1&d=1384399235stock fxr 14.5hp .steemroller 26 hp .. had some mix results with engines 21 to 26 now heaps outside the engine to make power but getting on top of it i think lol

Fuck yeh
Nice work

[mr bucketracer]

Fuck yeh
Nice workso why is my one not as good)-: , i can think of 3 things dam it

[seymour14]

so why is my one not as good)-: , i can think of 3 things dam it

Maybe you and the old man should stick with sidecars, found an old dunga on the net for sale...

[mr bucketracer]

everything is jumping in front of everything , bucket britton is in front now

[seymour14]

While everyone wanks over the prices of tyres, I just thank God its Friday...

Enough CNC work for a week, time for the Friday funnies. :eek5:

[mr bucketracer]

have you made my wheels yet or do have to claim my machines back;)

[Bert]

While everyone wanks over the prices of tyres, I just thank God its Friday...

Enough CNC work for a week, time for the Friday funnies. :eek5:

Yea.; what's up with that tyre shit... I've paid anything between 20 and 250...
but the reality is we will all likely have to start buying brand new tyres as there isn't the same number of 125 out racing; to allow for a cheap secondhand market.
Supply and demand... economics are a bitch...

It funny where those stickers are appearing...

Steamroller: that 400 finished? test day tomorrow !!!!

[F5 Dave]

Don't ask me. Other people were stirring the pot but if he'd just said 201 without being a cock. .

[seymour14]

Just a couple of images for the bro to ponder over. Little different, but not entirely successful me suspects...

Nembo Super 32 Rovescio Motorcycle.

[Bert]

4pm. lets hope the weather plays ball.

:niceone:

[mr bucketracer]

and take some chairs with you

[steamroller]

and take some chairs with you

Happy birthday mr bucketracer:woohoo::woohoo:

[Bert]

Happy birthday mr bucketracer:woohoo::woohoo:

Indeed. Happy mr bucket racer. Hope ya had a great day.:msn-wink:

[mr bucketracer]

Indeed. Happy mr bucket racer. Hope ya had a great day.:msn-wink:thanks apart from picking up a dam cold

[Bert]

Can someone please post up the base curve for a FXR.

We have sourced a cheap programmable CDI and would like to play with it and see if it's any good.

If it is, it might be a simple and cheap upgrade for those having electrical issues and/or too tight to buy an ignitech...

So far it will accept both two and four stroke maps.... Rev limiter, quickshifter, still working on killswitch

[richban]

Can someone please post up the base curve for a FXR.

We have sourced a cheap programmable CDI and would like to play with it and see if it's any good.

If it is, it might be a simple and cheap upgrade for those having electrical issues and/or too tight to buy an ignitech...

So far it will accept both two and four stroke maps.... Rev limiter, quickshifter, still working on killswitch

Base of 9 to 1500 then 34 at 5300 flat from there to the limiter of 12400 / 12500

[Bert]

Base of 9 to 1500 then 34 at 5300 flat from there to the limiter of 12400 / 12500

Cheers rich.
Forgot how crude it actually was.

All good, I'll post up the results as it happens.

[seymour14]

Ashhurst Christmas parade tomorrow, the Rockers are taking over.

Oh, and Reindeer as well.

[Henk]

Ashhurst Christmas parade tomorrow, the Rockers are taking over.

Oh, and Reindeer as well.

Did the nasty rocker child steal your onesie?

[Bert]

its a start of a little bit of a story.

For a while now, I've been playing around with CDI's (to the point of even trying to make one myself).
Back in 2010 I got myself an ignitech P2 and fell in love with it (amazing value for money and recommend them to nearly everyone).

But; with over 9 bucket bikes in the GPR fleet (including 50, sidecars and some other gems); its a little to expensive to have ignitech's on everything, so we are stuck with the age old problem "shit CDIs" or swapping CDI's....

So as part of the my original search (2010) I stumbled across a Chinese MC forum (http://translate.google.com/translate?hl=en&sl=zh-CN&tl=en&u=www.motorfans.com.cn%2Fbbs%2Fviewthread.php%3Ffi d%3D14%26tid%3D562783) where a young man named Dragon was prototyping a CDI; which I followed with some interest (along with some correspondence; and a simple wish list).

Well he managed to do it and start producing the units. And yes you can buy them directly out of china.
Sitting on my desk is a Version 1.04 (o.k so its a version 4) after fighting Customs....
291011


After working through the Chinese Complied version; I now have a Engrish (not quite English) version of the software installed and running.
291012

Thus far; now we have it in a state where we can do something:
Once you get the USB dongle installed, the software and CDI will happily talk without any connection to a 12v battery (this is cool as I can play with it in my office rather than in the shed).
Adding and moving points (up to 120 points; but five to seven will do) and programming is a piece of piss.
The CDI micro's clock speed is significantly higher than that of the ignitech (so the number of points at the moment doesn't seem to be an issue).
Two or four stroke (single or twin) it doesn't matter.
half effect trigger as a primary (but it looks like it will take other trigger options)

Extra Features:
Bugger all at the moment.
Kill switch, quickshifter (ok internal modification of the killswitch; with a time delayed spark). plus adjustable MAP and RPM limiter.
Price = ~$150 for the chinese version currently (but I'm working on that too)...


From here:
Should be on the bike this week (on the dyno) and I'll see if I can break it.
If it survives then I'll carry on the translation of the installation manual/wiring diagrams and help improve the Engrish in the software further...

Its not an Ignitech (if you want that level of performance/features get an Ignitech);
But hopefully its better than a clapped out 20 year old MX CDI, which would likely still cost more...

I'll keep everyone in the loop.

[kel]

I like it. Very interested to see how this goes.
We just bought in a couple of these http://www.ebay.com/itm/Complete-Racing-Stator-Rotor-Kit-For-Lifan-140cc-150cc-Super-Bike-Dirt-Pit-Bike-/261349449132?pt=Motorcycles_Parts_Accessories&hash=item3cd9a41dac&vxp=mtr to power the ignis, would (possibly) go nicely with your CDI. Only problem is its the Honda taper so needs to be sleeved for our two strokes

[TZ350]

If we could get a batch of taper sleeves made then between Berts ignition and these generators that would be a really good basic ignition option.

[Bert]

I like it. Very interested to see how this goes.
We just bought in a couple of these http://www.ebay.com/itm/Complete-Racing-Stator-Rotor-Kit-For-Lifan-140cc-150cc-Super-Bike-Dirt-Pit-Bike-/261349449132?pt=Motorcycles_Parts_Accessories&hash=item3cd9a41dac&vxp=mtr to power the ignis, would (possibly) go nicely with your CDI. Only problem is its the Honda taper so needs to be sleeved for our two strokes

Nice, yip one of them sitting in the workshop. Actually brought it to sit on the dyno to charge the stare battery, never happened.

Actually we were thinking of something like this
http://newmanz.co.nz/shop/index.php?main_page=product_info&cPath=66&products_id=205

http://newmanz.co.nz/shop/index.php?main_page=popup_image&pID=205

One could easily recut the taper to suit. But it would need to get 12v out of it?? New coil windings??

[mr bucketracer]

If we could get a batch of taper sleeves made then between Berts ignition and these generators that would be a really good basic ignition option.can you post a pic so i can see what you want?

[mr bucketracer]

291025team gpr camp site

[jasonu]

291025team gpr camp site

Looks almost professional...:2thumbsup

[Bert]

hummmm might be worth a looksee:

http://www.yoshimura-jp.com/en/topic/yd-mjn/index.html

http://www.yoshimura-jp.com/en/topic/yd-mjn/images/detail_e_01.html

24-28mm

[richban]

hummmm might be worth a looksee:

http://www.yoshimura-jp.com/en/topic/yd-mjn/index.html

http://www.yoshimura-jp.com/en/topic/yd-mjn/images/detail_e_01.html

24-28mm



Perfect for my C90. Bit small for an FXR. Also looks a little to mikuni for my liking.

[F5 Dave]

Yoshi & monkey bike? it just seems wrong.:wacko:

Could be the go for my T125 Stinger


Nah, nah.std Dave, std.:eek5:

[TZ350]

For a while now, I've been playing around with CDI's (to the point of even trying to make one myself).
Back in 2010 I got myself an ignitech P2 and fell in love with it (amazing value for money and recommend them to nearly everyone).

But; with over 9 bucket bikes in the GPR fleet (including 50, sidecars and some other gems); its a little to expensive to have ignitech's on everything, so we are stuck with the age old problem "shit CDIs" or swapping CDI's....

So as part of the my original search (2010) I stumbled across a Chinese MC forum (http://translate.google.com/translate?hl=en&sl=zh-CN&tl=en&u=www.motorfans.com.cn%2Fbbs%2Fviewthread.php%3Ffi d%3D14%26tid%3D562783) where a young man named Dragon was prototyping a CDI; which I followed with some interest (along with some correspondence; and a simple wish list).
291011

291012

Its not an Ignitech (if you want that level of performance/features get an Ignitech);
But hopefully its better than a clapped out 20 year old MX CDI, which would likely still cost more...

291152

http://www.ebay.com/itm/130463015746?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

291151

The copper colored coils are for 12V DC 25 Watt charging circuit. The three High Voltage coils could be stripped off and the four other polls re wound for a total of 75 Watts 12V DC.



If we could get a batch of taper sleeves made then between Berts ignition and these generators that would be a really good basic ignition option.
can you post a pic so i can see what you want?

291153

For us Suzuki engine owners we need an adaptor sleeve to fit between the 19mm (Honda/Lifan) flywheel and 16mm Suzuki crank taper.

[F5 Dave]

Looks interesting, but I'm sceptical of the output given that a CR250 with the 8 pole alternator & strong tricky magnets is rated at 40W

[Bert]

Looks interesting, but I'm sceptical of the output given that a CR250 with the 8 pole alternator & strong tricky magnets is rated at 40W

Turning in a bit of a syninic cynical lately aren't you Mr devconDave, Not very proactive and supportive....


So TZ, I'm sure I recall you covered the re-winding of your coils (within the ESE thread). What size core did you end up using and # wraps to achieve +50 watts. Rough calcs in my head thinking 1.8mm with 3 passes (but a long time since I needed to do those calcs).. Assuming the same type of alternator and magnet strength...

[mr bucketracer]

Mr devconDave lmao ha ha dam strokers:laugh:

[husaberg]

Turning in a bit of a syninic lately aren't you Mr devconDave, Not very proactive and supportive....


Cynic or being Cynical.....Maybe that was the word you were looking for;) oh got it right first time without spekllcheck lol
sorry Brent.....

I was thinking re the Cotswold and the other alternator...... why not just swap out the center?

[TZ350]

Looks interesting, but I'm skeptical of the output given that a CR250 with the 8 pole alternator & strong tricky magnets is rated at 40W

You might be right to be skeptical, I was basing the 25Watt output on what I had been told and have not been able to verify it for myself.

But whatever it is, by re winding the other poles it can be maximized and from memory my Ignitec setup needs about 1.5A or 18Watts to run at full power.

We don't have one of these stators fitted yet but the definitive test will be light bulbs of various wattage and a voltmeter in parallel with them to see what sort of load the alternator can sustain. 50 Watts wont be enough for the fuel injection system but would run an Ignitec easily.


TZ, I'm sure I recall you covered the re-winding of your coils (within the ESE thread). What size core did you end up using and # wraps to achieve +50 watts. Rough calcs in my head thinking 1.8mm with 3 passes (but a long time since I needed to do those calcs).. Assuming the same type of alternator and magnet strength...

The KX80 flywheel I currently use is a bit bigger than the new Honda/Lifan one but has only two pole pieces. We used 0.8 wire, 1mm would have been a lot better but was to thick to get enough windings on easily. From memory, we had about 420 turns in total. I will have to re visit this as I never really got it working properly as it only put out 12V DC. The final AC voltage was not enough to cover the losses in the regulator rectifier and finish up with 14V for charging the battery. Maybe 60-80 more windings are required. Its to hard to calculate as you never really know the flux density so the most practical way is to suck it and see.


Ok we have fallen into a few traps for beginners. The flywheel on the left is 71mm ID and the one on the right 68mm, which means the poles are different sizes. And as magnetic flux and therefore voltage generated is affected by how close the pole is to the magnets in the flywheel a small pole in a large flywheel would give poor results if they were mixed up. We also added a smoothing capacitor for better measuring accuracy of the DC output with the digital Volt meter.

We have tried several coils and found we could get 100 turns of 1.0mm wire, 200 turns of 0.8mm or 410 turns of 0.6mm wire on a bobbin.

We need 0.8 mm wire with an area of 0.50mm2 and 420 turns for 14Volts DC at 2.5 Amps. So the only way to get anywhere near that, we will have to wind two bobbins with 410 turns of 0.6mm wire each, and wire them in parallel. That would effectively give us an effective 0.85 mm diameter wire for 0.57mm2 area, and hopefully that will give us the Voltage we want and handle the current needed.

Next week we will get Bucket to make them and see how it goes.......

[Bert]

Cynic or being Cynical.....Maybe that was the word you were looking for;) oh got it right first time without spekllcheck lol
sorry Brent.....

I was thinking re the Cotswold and the other alternator...... why not just swap out the center?

Nothing wrong with being corrected Husa...

[husaberg]

Nothing wrong with being corrected Husa...

Unless its from the guy with the worst spelling and grammar on KB.
I was asked to interpret and read out some notes, (i had written) the other day by one of the office ladies, Problem was even i couldn't read it:(

[Bert]

Unless its from the guy with the worst spelling and grammar on KB.
I was asked to interpret and read out some notes, (i had written) the other day by one of the office ladies, Problem was even i couldn't read it:(

Join the club... I've not allowed to hand write notes. Chicken scribbles worse than doctors scrawl...:nya:

[Henk]

I also struggle to read my own writing at times, someone want to come up with a Freudian theory of some sort?

[Bert]

Though I think I'm not doing too bad; given that hillbillie is my first laugange...:whistle:

Speaking of hillbillies:



an ‘Evening with Guy Martin’ on Monday 23rd December at the Wanganui Room, in wanganui – Infusion from 5.15 –8pm

tickets available from Joe Lett ltd

Monday night road trip GPR boys. He would be a very interesting chap to listen too.

[Henk]

We're going down Christmas Day. Come and see us, we'll be hanging out with Helen and Malcolm in the cemetery.

[mr bucketracer]

Though I think I'm not doing too bad; given that hillbillie is my first laugange...:whistle:

Speaking of hillbillies:




Monday night road trip GPR boys. He would be a very interesting chap to listen too.no he is not john britton

[husaberg]

no he is not john britton

Probably says a bit more these days though.
I knew John only enough to say hi to. he was a friend of a guy from work, He was a charismatic guy in a salesman kind of way. He had a way about him.
Kind of infectious enthusiasm. He was especially good at getting clever people to do stuff just for the love of it. I think that was his gift that and a vision for how stuff should look and simplifying things.
Me i'd rather hear Phil Irving speak myself.

[Bert]

We're going down Christmas Day. Come and see us, we'll be hanging out with Helen and Malcolm in the cemetery.

It is the day of my family Christmas gathering; every year we all meet up on Taupo Quay (or the red lion for breakfast) and try and spend the day together, on the truck grandstand (you all though one Watson was bad enough, try twenty)... some end up too pissed to remember the racing vividly.
Long family involvement (and support/sponsorship) of Boxing day, dating all the way back to Matarawa Valley Loop and Motoua gardens (not my generation of course)...

Chances are I'll have to have time out, so I'll wander over and have a beer.... (that was the sort reply)...

[Grumph]

Probably says a bit more these days though.
I knew John only enough to say hi to. he was a friend of a guy from work, He was a charismatic guy in a salesman kind of way. He had a way about him.
Kind of infectious enthusiasm. He was especially good at getting clever people to do stuff just for the love of it. I think that was his gift that and a vision for how stuff should look and simplifying things.
Me i'd rather hear Phil Irving speak myself.

Fuck yeah, i knew john quite well and he was shall we say socially limited....great at a very narrow focus.

i met Irving and went to a talk he gave, the old bugger could tell stories brilliantly - and he'd been there, done that, built this, ridden from there to there,met literally everyone....

Guy Martin I'd like to hear but won't be at wangas, and i suspect that if he's well primed to talk, you'll probably need an interpreter....

[F5 Dave]

You might be right to be skeptical, I was basing the 25Watt output on what I had been told and have not been able to verify it for myself.

But whatever it is, by re winding the other poles it can be maximized and from memory my Ignitec setup needs about 1.5A or 18Watts to run at full power.

We don't have one of these stators fitted yet but the definitive test will be light bulbs of various wattage and a voltmeter in parallel with them to see what sort of load the alternator can sustain. 50 Watts wont be enough for the fuel injection system but would run an Ignitec easily.

I would be interested, I'm not trying to piss on it & that sounds like a reasonable test.

My CR one as I said is rated at 40W. It runs the ignitech, a 20W water pump & I've tried it with the solenoid carb & with a multimeter it will run through the gears sitting on ~14V without drooping.

Katie is having drama with her RS ign (maybe it is sorted now) but when some funds come to hand she'll want an Igni & a stator so would be good to keep taps on how this goes. (she didn't get the bike out of the pits on sunday, but it does look like it will be a weapon).

[TZ350]

I would be interested, I'm not trying to piss on it & that sounds like a reasonable test.

I am sorry to hear Katie is having ignition problems, Kal will probably the first with one of these Lifan race stators, now that you have rasied the point and got me thinking, we will certainly give it a load test and see what happens, hopefully it will be enough.

[F5 Dave]

Just spoke to her & she's hopefully got it sorted & found a few other teething issues so we'll run it up on the dyno & see how it shapes up. She borrowed some of me porting tools & has done a pretty good job for a first timer & on limited time.

[TZ350]

If you can get any photos, please post them up.

[Bert]

I like it. Very interested to see how this goes.
We just bought in a couple of these http://www.ebay.com/itm/Complete-Racing-Stator-Rotor-Kit-For-Lifan-140cc-150cc-Super-Bike-Dirt-Pit-Bike-/261349449132?pt=Motorcycles_Parts_Accessories&hash=item3cd9a41dac&vxp=mtr to power the ignis, would (possibly) go nicely with your CDI. Only problem is its the Honda taper so needs to be sleeved for our two strokes


If we could get a batch of taper sleeves made then between Berts ignition and these generators that would be a really good basic ignition option.


can you post a pic so i can see what you want?

So I did a bit of google time on tapers and found this

http://www.arcracing.com/servlet/the-Billet-Flywheels/Categories

Half way down is a selection of replacement tapers.... Cheap...


CDI PROJECT

Day one testing.
Epic Fail yesterday.
Failed to pick up the "pickup trigger coil".

need to sort out wiring a little better (and re translate the wiring diagram).

[kel]

something more like this

[F5 Dave]

9hp but we managed to decrease it you 8 before we got it to barely run. Old RS ignitions, just rubbish.

[TZ350]

9hp but we managed to decrease it to 8 before we got it to barely run.

This sounds very faimiliar, been there done that lots of times..... one thing is for sure, it will get better, much better.

[koba]

9hp but we managed to decrease it you 8 before we got it to barely run. Old RS ignitions, just rubbish.

1 Less than I got first time on the old RS setup! ;)

The rivets have loosened again, incredibly it was still running OK-ish, :crazy: I think once spinning it must 'float' to about the right spot, it ran stange and rattled a lot at low revs.

Luckily the CR Ignition has arrived so I have that as backup for Taumaranui if I can't reattach it in time.

One question, is there any reason not to use bolts?

Original ones all seem to be riveted as far as I've noticed...

[Henk]

Not sure on the bolts, my guess is they didn't want them coming undone but you have that issue with the rivets anyway.
The starter clutch is bolted to the rotor in the FXR they do use quite a bit of green loctite to make sure they don't come undone though. And there is about 15mm of tapped hole to go into. Maybe nylocs if there is room?

[koba]

Not sure on the bolts, my guess is they didn't want them coming undone but you have that issue with the rivets anyway.
The starter clutch is bolted to the rotor in the FXR they do use quite a bit of green loctite to make sure they don't come undone though. And there is about 15mm of tapped hole to go into. Maybe nylocs if there is room?

I think If bolting it would have to have a prefect fit to the unthreaded shank, lots of loctite, nylocs and possibly even a bit of deformed thread action.
Still, maybe rivets are better?!?

[Henk]

Rivets are probably better.
Break out the big hammer.

[husaberg]

Rivets are probably better.
Break out the big hammer.

Rivets held the Titantic together<_<
How are they done factory. Likely not done hot are they pressed over?
There is a blog i have linked to before where he mods a few (can't remember how) and rewinds coils installs lighting coils etc and so forth.
I will see if i can find it. its by this guy heres part of it.
http://cdibuilder.blogspot.co.nz/search?updated-min=2008-01-01T00:00:00-08:00&updated-max=2009-01-01T00:00:00-08:00&max-results=7

he mentions how to reset death switches on printers and how to refill the ink etc as well
I hd save the web page but putting it into the word doc causes the animations not to work etc......
is there anyway of posting it?


cdi motorcycle ignition system alternative simple Always try to improve society rather than just take from it. Until then, lawyer stuff. Copying, duplication or transmission of this material whole or in part is not permitted without the written permission of the author. The contents of this text are for illustrative purposes only, and available here to view, for those who wish to buy a copy and support the research. Those using this information do so entirely at their own risk. Errors and omissions excepted. Contents subject to change without notice. All material herein is subject to copyright, patent and other intellectual property rights. All rights reserved. Copyright (C) J.Partridge. 1999. 2002.

A Simple Motorcycle Electronic Ignition Replacement.
Updated Oct 2007.

Although these are guides, you must never read this, nor even consider building such devices nor act upon this information. This is because the dogs of law lie around every corner, and everyone should just live a quiet, pastoral life for fear of litigation. (As lawyers get richer, society gets poorer.)
If you want freedom, then always vote to keep lawyers and assholes out of politics.

There are many motorcycles which use electronic ignition systems and all have one thing in common, the black box costs a fortune.

For the poor in Britain, or those with small bikes, the costs of replacement can be minimal, as they all have the same basic design. The following simple modification has been run quite happily on Honda NS125, KTM 125 and Yamaha TZR125. All had no electronic ignition systems other than the contents of the generator on the engine. Most wires were burnt flush with the blackened crankcase. This will also work on many larger and smaller machines, with or without wheels.

A little theory.
Four strokes (four cycle, Otto cycle,) engines, when spinning fast, need the spark to happen many degrees before the piston reaches the top of the cylinder. This allows time for the flame front to pass through the fuel and air mixture in the cylinder to be at its full potential as the piston begins to descend on the power stroke. But at low speeds, the flame front still happens at the same speed, so at low revs it is therefore necessary for the spark to happen a little later, so the maximum power in the fuel and air mixture still happens as the piston begins to descend. To allow this to happen, most four stokes have an 'advance and retard' unit, which senses the engine speed and times the spark at the right place according to the engine revs.

The Honda C90, ('stepthru' as its normally called) does not have an advance unit, and because its a small engine with plenty of flywheel, it can run happily without an advance and retard unit.
As many C90's are scrapped each year, there is a glut of C50/70/90 CDI units and these are the core of this monograph.
Many small four strokes can also run happily without an advance and retard unit. But larger four stokes cannot and may damage the piston and crank bearings if the timing is not ideal.

Therefore most four strokes need an advance and retard unit. On early machines, up to around 1985's this is a centrifugal mechanical device, but on modern machines, this is often incorporated in the electronics box. The mechanical designs are usually easy to modify. The latest designs are not easy to do and not discussed here.
So if you do not have a mechanical advance unit, then your machine will have to look elsewhere for a solution. Some possible options are described later.

Two Strokes.
Two stroke (two cycle) engines, because of their design, do not need the spark to advance with increasing engine revs. Tick over on a two stroke works quite happily at the fully advanced setting used for full power, and as such, there is no need to have an advance and retard unit. This makes it very easy to fit almost any electronic ignition unit. magnets

Typical set-up.
Inside the basic flywheel rotor are usually two main coils. One coil is fairly large and supplies about fifteen to thirty volts AC to the rectifier for the battery and lights. The other coil is a smaller, more finely wound coil to supply a hundred or so volts to the CDI unit.
Outside, or sometimes inside is a small, finger tip sized pulser coil, which triggers the CDI at the correct time for the spark. rotor and stator with lighting and CDI generator coils
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=291377&d=1387784528
This picture shows a C90 rotor with the pulser interrupter as a piece of metal sticking out on the outer edge, which causes the timing pulse at the right place, and the pulser is the black lump between the rotor and stator. Lying flat is the stator plate with the pale lighting and dark CDI generator coils.
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=291381&d=1387784573http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=291372&d=1387784433
making AC electicity There are four or more magnets inside the rotor (it rotates), such that as they pass the stator (static) coils, they induce a changing north - south - north - south alternating magnetic field in the iron plates of the coils, thereby generating electricity in the copper coils of wire.
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=291379&d=1387784563
As can be seen, the four poles at the ends of the coils means that the magnets in the rotors are four, so the N-S-N-S field flows strongly through the iron cores. This is acceptable for a low power machine, but sometimes a little more electrical power is needed in such a small space, so six poles can be used, with six rotating magnets. My old Ducati V twin used about twenty permenanat magnets.

another typical rotor and stator with lighting and CDI generator coils

Now we are six. The black and white picture shows another popular arrangement, where the lighting coils are the five coarsely wound coils, while the generator is the obviously different one nearest the viewer. Again the pulser is outside. You will also notice that as a six pole stator, the rotor should have six magnets. You can just make out the size and layout of the six magnets inside the rotor.

Assuming a badly damaged machine.
You may be looking at a burnt out wreck of an engine, I often do, as they are the only ones I can afford.
Remove the rotor. Either use the correct tool called a 'puller', or borrow one and always return it in perfect condition.
If you do not have a puller, then uncrew the central nut on the flywheel until it is flush with the end of the crankshaft.
pullers With a friend, place two tyre levers (tire irons) behind the back of the flywheel, so that they place a pulling force outwards, levered carefully against the crankcase. Hit the central nut sharply with a small hammer until the flywheel loosens. By placing the nut level with the end of the crankshaft, then the hammering will not damage the crankshaft threads. Do not allow the tyre levers to dent the crankcase. A single, firm, sharp tap should suffice to release most flywheels. Remove the nut and flywheel.
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=291378&d=1387784528
Inspect the wiring to each coil and make a note of the colours to each. Locate the fine wound high voltage coil inside the flywheel generator and inspect the components carefully.
Where any wire to the wiring loom is damaged, simply desolder and replace with a new wire. The preferred colours are mentioned below. Ensure the insulating sleeve is securely replaced and will not slide off to expose the bare soldered joint.
I usually remove the backing plate the bike, be it a PE suzuki enduro, TZR road racer, or my own specials, then inspect each coil and if suspect, repair as deemed suitable, taking the opportunity to use the old Honda C90 wring loom to fit new wires exiting from the engine casing.
Eventually you will have nice new wires exiting the engine, an earth wire, and a wire or two from the high voltage coil, a wire or two from the heavier coil for the lighting and battery charging, plus a wire or two from the small pulser unit.
In some cases, the small pulser coil and the high voltage coil may not be earthed, so will have two wires each, one from each end of their coil of copper wire. As these components normally use an earth, then this can be done by extending the wires and terminating them to an earth tag outside the crankcases. If this does not work, then they are probably connected inside the original CDI unit, but for the C90 unit, they can be earthed.

The C90 unit.
The spark from a C90 ignition will jump the gap in a 50cc to a 1500cc bike, as all spark plugs are essentially the same. There is no need to have a big CDI unit for a big bike. (If the cost of four C90 set-ups is one tenth the cost of the genuine article, then at least have a try at fitting four sets.)

The electronic ignition of many motorcycles and similar machines with electronic ignition can be run using the cheapest and most easily available electronic ignition in the world. Honda C90 parts are available from all second hand bike dealers and breakers, usually for a few pounds, always try to get the wiring loom as well, or at least the part of the wiring loom between CDI and engine. The parts needed are the CDI unit, the wiring loom connector and a foot or so of attached wire, and the ignition coil.
I often use the C90 stators inside the flywheel for a supply of suitable copper wire for rewinding this set - up onto other machines.

just add pulser and volts. Yes that is a coil The simple and commonly available Honda C90 CDi unit works very well with most small two strokes. I can also work with many four strokes which use a mechanical advance and retard unit. To check for a mechanical advance unit, it looks like a set of bob weights restrained by small springs which will fly out when running. This is common on most four strokes with points and can also be a conversion for some older machines. See later.
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=291375&d=1387784445
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=291376&d=1387784528The picture shows that coils are now very small, some not much bigger than your thumb, by using much higher primary voltages from the electronics box, they can now be placed in the spark plug cap, and each coil triggered from the electronics individually. On the left is the Honda C90 CDI unit, of which thousands are lying forgotten in the back of motorcycle shops. In the middle is a new generation of miniature coil off a small scooter with CDI, although the larger ones will also do the same job. This little set supplies the sparks for my road legsl, NSR125 street luge recumbent and KTM off-roader at a far cheaper replacement cost.
Yes that is a coil Some equally suitable coils can now be built into the spark plug, which greatly reduces radio frequency pollution problems. Check out the bike and car scrap yards and choose accordingly.http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=291380&d=1387784563

Perhaps you have bought a motocross engine, or have a small burnt out 125 or scooter, and want to see if the engine will run before adding the rest of the wiring. If wanting to attempt this on your machine, then first check the engine has electronic ignition such as looking in a suitable workshop manual, or remove the alternator generator cover and look for the small pulser coil on the outside of the flywheel. Sometimes the pulser may be inside the rotor, so check the manual circuit diagram first.
The diagram should look not unlike the wiring loom in the bottom right hand corner of just one generic wiring diagram for a single cylinder electronic ignition machine from my motorcycle wiring monograph on this website.

Go to you local bike shop and ask for a C90 electronic CDI unit, and the ignition coil with the thick wire to the spark plug, and a length of the wiring loom which attaches to them. As these bikes are scrapped by the millions, also try to get the flywheel and backing plate, (esp. if adding lights to a motocrosser) although this is more of a hassle for the mechanic.
std C90 coil The coil must be one suitable for CDI units, and the standard Honda C90 coil is a small suit sizes lump as shown opposite, but check it has the CDI moulded into it.

You can get the lot for a few quid, under a tenner, as they are all ways surplus to requirements. For this you should be able to get the flywheel, backing plate, a good chunk of the wiring loom which connects to the CDI unit, or if you are prepared to do the work yourself, the whole loom, and the ignition coil with the HT lead.

When fitting this set up on bikes, I just carry the CDI unit with about a foot of wire dangling from the CDI connector, the coil, some spare wire, soldering iron, tape and a multimeter, and perhaps the stator coil should a rewind be needed.

I have yet to know of any CDI unit which has failed. These bikes are usually scrapped because of rust or accident or a badly thrashed engine.

The basic set-up.
Wiring diagrams use a colour code.
The normal Japanese set-up uses English based nomenclature.
BK black. BU blue. R red. Y yellow. W. white.

The Honda C90 CDI unit is very simple and has only five wires.
The earth, the pulser coil input, the high voltage input, the output to the spark plug coil, and the kill switch wire.
To this will be needed a spark plug coil. Look for the 'CDI' mark on the grey or black plastic coil body. The latest mini coils are also very good, and can be attached directly to the top of the spark plug, with a little modification. Older points coils are not suitable.

The earth. - Green.
This must connect to the engine casing, and to the frame, so the kill switch will also work.

The pulser coil input. - Blue with yellow tracer.
This simply goes to the pulser coil. The change in magnetic field as the flywheel rotates, causes a small trigger spike of electricity to make a thyristor discharge the big capacitor in the CDI unit into the ignition coil. If the timing on a different machine is not correct, then the two wires on the small pulser coil may need to be swapped, so the north-south magnetic pulse is reversed. This allows the trigger to occur at the front or tail end of the pulser strip on the outside of the flywheel. So if your ignition timing is out, try swapping the pulser wires around.

The high voltage input. - Black with red tracer.
This supplies electricity from the stator coil inside the flywheel to charge up the big capacitor inside the CDI unit, so it is ready to be discharged, upon command from the pulser unit.

The output to the spark plug coil. - Black with yellow tracer.
This discharges the energy in the big capacitor into the high tension coil to the spark plug, changing it from a hundred or so volts up to the 20,000 volts or so to jump the plug gap. The ignition coil must be a CDI type, so buy this at the same time as the C90 CDI unit, so they will work well together.

The kill switch wire. - Black with white tracer.
This simply shorts out the power to earth. In the C90, it simply shorts to earth via the ignition key switch, so the pulse from the flywheel high voltage generator does not charge the capacitor, simply preventing the engine from working.
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=291373&d=1387784433
Also refer to the wiring diagram for the position of the wires if the wiring loom connector is not available.

The diagram includes the checking diagram for the CDI unit with a multimeter. The two probes of a multimeter are placed across the various pin connections, and the appropriate reading is checked.
The measurements are in ohm resistance. This is the measurement of the resistance to electric flow in the wire, the higher the reading, the greater the resistance.
Higher resistance may be because the wire is extremely long, or very very thin, or very corroded.

Reading the circuit diagram.
The big circle is the flywheel stator, with the two main coils.
The thick coil supplies the lights and battery.
The finer coil goes to the black/red wire on the CDI unit and supplies about 100 volts AC to charge up the capacitor in the black CDI box.
The small coil on the outside is the pulser and is connected to the blue/yellow CDI wire to send a small pulse as to when the CDI discharges its capacitor across the ignition coil to make a big, fat blue spark at the spark plug.

The two measurements beside the ignition coil are the primary and secondary windings.
Primary is connected to the earth and CDI connector tag, and is the low 0.4 ohm resistance.
The secondary has a larger 4,000 ohm resistance and connects to the earth and spark plug thick HT lead, (without the plug cap, which may also contain a resistor).

Reading the grid box.
In the circuit diagram is a little grid box, with the resistances which can be measured using a cheap multi meter. these are available for a few quid, and available in digital or analogue moving needle types. Either will do. Place the probes across each connection and measure the readings. Fairly close will usually suffice, as such devices either work or not.

The open ended figure eight on it's side is infinity, so maximum resistance with effectively no connection is required.
SW is the switch , which is the black and white kill-switch wire.
PC is pulser coil.
E. is the earth.
IGN. is the ignition coil.

The modification.
Assuming a generic small motorcycle with a CDI system. It may be a single cylinder two stroke scooter, a motocrosser, a KTM, TZR125 or NS125 etc. I have used the C90 CDI unit on them all quite happily.
The main problem is removing the flywheel and usually needs a specific puller. If no puller available, then remove the central nut and apply penetrating oil to the crank taper area. Replace the nut, but fit it so the end of the crank is flush with the nut. This is to prevent damage to the crankshaft thread.
With a pair of tyre levers gently pulling against the back of the flywheel, but without damaging the crankcase, the central nut is given a sharp tap with a steel hammer. Continue until the flywheel loosens. If undue damage is likely to occur, get the correct puller.
Remove the nut and then the flywheel. Check the nut has not damaged the crankshaft thread. Clean any thread damage until the nut fits without hassle. Do not loose the semicircular woodruff key. Nut, washer and woodruff key are usually retained inside the flywheel by the magnet.

The backing plate can now be removed for inspection. If the securing screws are in slits, then make sure you mark a scratch on crankcase and backing plate to preserve the correct position.
If the wiring is badly damaged, then check what each wire does by checking with the original wiring diagram. This is often at the back of the owners manual supplied with each machine, and does not need the expense of the larger workshop manual.
If damaged, remove each coil and attach new connecting wires to each coil, in the same way as the original.

If the lacquer on the copper coils is damaged, it can be cleaned up and re-lacquered with nail varnish. If the coils are badly broken or suspect, they can sometimes be wound back a few turns and rebuilt using more lacquer and wrapping in masking tape. Vinyl tape is not strong enough in the hot engine area. The best wrap is cotton cloth and epoxy resin.

If badly damaged, such as sliding down a road and rubbing away much of the winding, then carefully unwind the copper wire, noting the direction of rotation and counting the number of turns. Play it out on the floor, then buy new lacquered copper wire of the same diameter and rewind the same number of turns. Fit new connecting wires to the loom. It is not rocket science. A roll of copper wire costs just a few quid.

I most cases, I simply need to tidy up the windings, and solder in new wires for neatness.

Replace all components ensuring the wires pass through the waterproof seal. If this is missing, then silicone bathroom or gasket sealer is acceptable.
Wire up appropriately as mentioned earlier and check for a spark.

Yeah , but ,
If the engine does not run, check the following.
Disconnect the kill switch wire.
Kick the engine over with the spark plug resting on the cylinder head, as this allows a faster spin.
Use a strobe and if the timing is out by twenty or so degrees, then try swapping the pulser coil wires, as the pulse may need to be the other way around - North South and vice versa.
If no spark, then swap the high voltage generator wires in the backing plate. This is rare.
Check the wiring is correct.
Check the components are good, using a multimeter.
If all else fails, you have lost just a little cash and some time. The rest is still available for the original and probably expensive genuine CDI unit.

Other stuff.
If the exhaust valve unit for the TZR is bust, simply replace with a spring, a choke cable and a lever, then simply use this to set to cruise or full throttle, according to the type of riding at that particular moment. If preferred, then the exhaust unit can be connected to the throttle cable using a three way RD 350 throttle cable. Best to make sure the exhaust valve rotates fairly freely and stops are set-up correctly.

If you have a twin cylinder machines, then the CDI cannot handle two plugs, so use two CDI units triggered off the single pulser coil. If two pulser coils, then this is simply a case of two separate systems. In many cases, both CDI units can be powered by the single generator coil.

Not everyone has an easy bike.
Four strokes use advance and retard units, so the pulser may be on the end of the camshaft, or hidden inside the engine, possibly behind the clutch cover. Otherwise, these puslers are just the same as will do preferably well in most cases.

If you have no advance and retard unit on your four stroke, then the electronic ignition just does this job and building your own is going to be difficult or expensive, so simply buy the correct CDI unit.

Do NOT Do This:
If you have a four stoke engine and manage to wind a higher voltage CDI charging coil in the flywheel generator and can get a spark from it using the other components, (perhaps sticking a old fridge magnet to the flywheel to get the pulser to work) while cranking over and checking for a spark, then you may need an advance and retard unit.
If wanting to make your own advance and retard unit, perhaps for an older bike, extend the camshaft, by drilling or welding a shaft or stud into the end of the camshaft, and extending it out though an oil seal.
Most camshafts will need drilling centrally, so remove any end plug, and pack some cloth around the camshaft oil area. Fit a top quality drill in the drill and start the bike engine, then slowly drill a perfectly concentric hole in the end of the rotating camshaft as the engine ticks over. Stop the engine, clean up the swarf, and either tap the hole with a decent thread to take an extending bolt and sleeve, or hammer in a tight fitting smooth steel rod, preferably with some epoxy resin and roughen the end of the rod where it fits into the camshaft.
Rotate the engine on the electric start and make sure the new shaft is perfectly concentric, or gently hammer so it runs true. Place an oil seal around the shaft and fit a smpth steel tube of suitabel dimensions to fit the oil seal. Secure the seal in poition by building up the casing to take the seal with 'epoxy metal in a tube'. Make sure the camshaft casings will split where needed, so you may need to fit slivers of cooking cling film to make a splittable seal joint face.
Fit the CDI pulser and advance unit from an eighties bike such as an XL125 then build up the camshaft area with epoxy metal to make a simple cover and to hold the pulser in position beside the rotating advance retard unit. This shaft will probably need a slot or hole to align the advance retard unit, and retaining screw. Rotate the engine to the static firing mark, F, then align the advance unit and the pulser so they line up. There is often manufacturers marks for this.
If a four cylinder, then you'll be adding a second pulser coil 180 degrees apart, or if a V4, then at 90 degrees or whatever is needed.
Then check the spark advances as required, or be prepared to bend the centrifugal weight end stops to get perfect advance position, then adjust the springs to get the best advance curve

Adding lights to motocrossers and mini motos.
Open up the flywheel generator and if there is only one winding, then buy another, which will fit on the other side. This can be wound with fewer turns of thicker enamelled copper wire, and I would recommend buying an old C90 lighting winding as it will have the right amount of correct copper wire for a few quid. Unwind it carefully and then rewind it onto the stator coil of your machine.

If you can't buy a new coil, then you can try winding the lighting coil over the CDI generator coil, but due to the room available, just don't expect too much. If desperate, then you can try for a 6 volt lighting system with small wattage headlight and LED tail lights.

A recent CDI custom special of mine needed to retain the '12volt' cdi system, but preferred a 6v lighting system to keep weight to an absolute minimum, by using small NiMh batteries in the frame tube to power just the indicators and horn. The lighting battery generator coil was carefully unwound and the wire folded half way, with an earth tag fitted half way along the wire. This was then rewound as a pair of wires and used in 6 volt mode. The reason why this was possible is that only half the number of turns was available on each wire, causing only half the voltage. But as the wire was doubled, the output of the 6volt wires was therefore double, allowing the same wattage lights etc, but at 6 volts rather than 12 volts.
Likewise a 6 volt lighting coil can be rewound to supply 12volts simply by halving the cross section (not the diameter) of the wire and doubling the number of turns.

Modifying motocross or trials machines for road use is common. I've fitted a Honda 90 flywheel and backing plate with spark coil and lighting coil onto a Suzuki PE175 crank flange using bolts as rivets, then timed it correctly using C90 cdi components. Make sure the positioning of the pulser is correct before final fitting. This modification started first time and was still working after four years. A few welds to the original Suzuki crank mounting taper flange would probably make it even more reliable.

If making a Dakkar or night desert racer, then cram in as much winding as possible, - same number of turns, but thicker wire and add some over the other coil too, then fit a decent rectifier regulator unit with big fins.
You can now add a headlight and tail light, with no other items, but a switch is common. If using high and low switch, always make sure the tail light is switched off at the same time as the switch over, otherwise it may blow. Alternatively use a 12 volt regulator in the tail light wire to protect it. Lights can work directly off the AC electricity, so no fancy gubbins are needed, - just make sure your headlight is big enough to take the electricity at top revs without blowing. This is called a 'balanced system' and is simple, but if the headlight blows, it also takes out the tail light, so carry both as spares. LED tail lights ar more robust.
If wanting a battery, then read my monograph on motorcycle electrics, it's on this website

Points ignition.
If your machine has a set of points, then it either uses 12 volt battery ignition or uses direct pseudo magneto ignition. Whether 6 or 12 volt battery points, or the magneto version, then both can have the coil which supplied the HT coil rewound to supply about 100 volts, - rewind using an old C90 winding, or similar, then test using a multimeter when kick starting. Then position the piston at the correct timing and fit the pulser and small magnet on the outside of the flywheel. If necessary, make a hole in the alloy casing and epoxy a pulser in place, modifying the timing by repositioning the magnet.
If an advance and retard unit is used, then the unit will have to have a small magnet epoxied on the unit, and the new pulser positioned with an airgap of 5 thou. The pulser will have to be axially adjustable to get the timing accurate.

E-mail for alternative ways to solving a wide variety of engineering problems. Well, almost any.

If doing this modification, then also read 'Stonehenge and Spanners', on this website, which is aimed at home motorcycle builders and engineers. Reading this can save a lot of grief.

The lighting coil.
This is not part of the spark circuit, but as the bike may be burnt out, then after it runs, you may as well get the lights working too.
The larger lighting and battery charging coil which has thicker copper wire windings, may have two outputs, usually one for charging the battery and the other for direct lighting. To find out which is which, simply place a headlight to each, to see which is which lights the headlight bulb the brightest when the engine is running. The lesser wire is to charge up the battery via a diode. If you have a multimeter, then the wire with the higher resistance is the lighting coil, and the wire with lower resistance is used for charging the battery.
Headlights can work quite happily on AC, so no fancy electronics is needed. If the direct lighting keeps blowing, simply fit larger wattage bulbs or add a simple 6 or 12 volt limiter to the headlight circuit. A limiter is a cheap and basic device which simply bleeds off excess voltage, so the bulbs do not blow. These are often found on small commuter bikes and sell second hand for a few quid or new pattern parts cost about the same. They are simple single blocks attached to the frame, with a tag for the lighting wire and will bleed off excess electricity. Just connect it to the tail light wire so this will remain reliable. Never fit it to the wire from the generator, as this will cause it to blow. It must always be connected after the lights switch.

bridge rectifier For charging the battery, use a single diode. Any diode will do and a 50 p diode which can handle 4 amps can be soldered in the line to the battery, but make sure its the correct way around, with the + end to the battery. Diodes often look like little black cylinders on thick wire, with a silver band on one end. You can scavenge these diodes in groups of four from the power supplies of old video recorders and TV sets etc.
bridge rectifier For greater efficiency, or if riding at night a lot or prone to stopping with your brake light on all the time, or using indicators too often, then isolate both ends of the lighting coil wire and use four diodes in diamond arrangement (Bridge rectifier) to get both halves of the AC current going to the battery. See the motorcycle wiring monograph on my web page.
The animation shows how both directions of the yellow alternating current is used to re-direct it to become the red positive and green negative DC direct current.

If revving heavily on a regular basis, then a voltage regulator will keep the battery from boiling.

See my home page at
www.btinternet.com/~jhpart/index.htm
for a more comprehensive guide to motorcyle electrics.

Also on my website is stuff on motorcyle and trike design,
manufacture and testing, radical HPV's, survivival equipment,
boats, home projects, DIY wind tunnels
and lots and lots of other stuff. (list below).

[koba]

I've got a few riveting techniques from one in the know, I might have to have another go.

[koba]

How are they done factory. Likely not done hot are they pressed over?


Seem to be done in a press, I've been gifted a bit of how-to on that but, while I can get access to a grunty press; I think the hammer will be the best bet in this case.

[F5 Dave]

Yeah I made those rivets too long and perhaps too thin or maybe not soft enough to expand.

[Bert]

On the twelfth day of Christmas,
my true love sent to me
(a whole lot of useless Christmas sh!t)
Twelve drummers drumming,
Eleven pipers piping,
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five golden rings,
Four calling birds,
Three French hens,
Two turtle doves,
and a pass for Wanganui.

And more importantly:
And a pass out for Taumarunui!

[Bert]

This is choice.

UK minimoto 2014 chassis.

Honda CR85

http://www.minimotoscene.co.uk/forums/showthread.php?65952-Filf-Racing-s-New-2014-outfit

Add on a telelever/Hossack front end and inner rotor brakes and it could be a really cool bit of kit.

Mr Bucketracer/Crazyman. I'll buy the steel in the new year......

[F5 Dave]

and a pass for Wanganui.

And more importantly:
And a pass out for Taumarunui!


Good stuff, see you there (probably hudling under an alcove like last year) & see you there.

[Pumba]

This is choice.

UK minimoto 2014 chassis...

Shit have they changed their rules as that looks a bit bigger than what I have seen them build in the past.

[Bert]

Shit have they changed their rules as that looks a bit bigger than what I have seen them build in the past.

http://www.minimotoscene.co.uk/forums/showthread.php?65983-Emms-Racing-s-new-2014-outfit

worthy of a looksee as well


Drag this out of the merry Xmas thread.



yes sidecars , may have to bring the bert car out one day


Needs it cert again (plates).
Maybe old stinky (very old pinky, for those in the know) can make its way to the have a go day in May....
Now there's an aim (ill add it to new years list)....

Good luck Drew for wangas, hope she stays together for you.


More chairs need to be out there. If it's in need of loads of work, there are no shortage of able people to help with a build.
.

The old girl is in fine shape.
There is no real excuse for her not to be out, other than maybe paying up the tray of piss (long story)...
Needs a new battery and new tires (if one was keen).
I wouldn't mind changing a few things:
1. the bars to deal with shoulder issues.
2. Front brakes. We found the pads needed to be replaced every race but that's prob my fault for than the brakes...

[Bert]

CDI PROJECT

Day one testing.
Epic Fail yesterday.
Failed to pick up the "pickup trigger coil".

need to sort out wiring a little better (and re translate the wiring diagram).

CDI PROJECT

Day2 Testing.

Armed with new wiring and a lot of confidence we headed into day 2.


1. resolved the pickup wiring and registered it in the CDI and software (so now now managed to get RPM and ignition); no spark but we are getting somewhere.
2. figured out that the CDI actually has a misfire pickup (wound around the sparkplug lead), this is not the spark trigger.....:facepalm: my translation skills need a little work.
3. then came to the understanding that the system acts more like a points system and the ignition coil is triggered to ground rather than charged (well that's what we thought).... now we have spark:niceone:)
4. wired it up and programmed in the Stock FXR curve.

..
...
....
.....
......
.......
........

motor ran :Punk::Punk::Punk::Punk:

..
...
....
.....
......
.......
........

Motor stopped running

..
...
....
.....
......
.......
........

CDI melted >>>>> black smoke >>>>> bubbling epoxy >>>>> liquid circuits >>>> luckily no back feeding into my new laptop (i guess its one benefit of USB over Serial),.

:brick::brick::brick::argh::brick::brick::angry2:

:confused::confused::confused::confused::confused: :confused::confused:
:facepalm::facepalm::facepalm::facepalm:

So standard FXR CDI remounted and into the GRIFF bootleg.:drinknsin

I'll get in another one and try again.
Its a shame I didn't get Regan to video it (was about to ask) it would have been another great Arggghh F##k moment on the GPR dyno.....

[Bert]

Another GPR150 engine rolled out the door to another happy customer yesterday....

Smiles all round; especially when he was already doing very well with the stock engine...
291624

still some refinement/tuning/running-in to be done.
But not bad as a first run up.

[TZ350]

Another GPR150 engine rolled out the door to another happy customer yesterday....

Good work, Buckets is getting more interesting by the day.


CDI PROJECT Day2 Testing. ....... I'll get in another one and try again.

Its a shame I didn't get Regan to video it (was about to ask) it would have been another great Arggghh F##k moment on the GPR dyno.....

Bugger ... and I was feeling sorry for myself over a little software issue, I admire your composure, I feel like a Nancy now. LOL

[Bert]

Good work, Buckets is getting more interesting by the day.
Bugger ... and I was feeling sorry for myself over a little software issue, I admire your composure, I feel like a Nancy now. LOL

:angry2: yes well; I've finished my two day sulk/drowning my sorrows... back on the horse.

GPR tuned 150 motors... I have to say Scotty & Dave (and Colt Cams), have the build down-packed now in terms of consistency and repeatability.
The last four engines of the production line have produced almost the exact same power curve.
No matter how poorly they started at.



Right given its NYE: here is the 2014 Aims for GPR boys (lets hope we can tick off a few):

1. Get the Superlight F3 bikes running and out for the winter series. 550cc,400cc & 250cc.
2. Dig out the hydroforming kit from the back shed and start playing.
3. More Carbon Fibre parts....
4. Workable CDI...:angry2:
5. Exhaust systems <90dB (make the bikes super quite so we can sneak up on people)
6. Another Bucket Sidecar
7. Start replacing the RS125 running gear with other stuff.
8. Actually paint all the bikes (I said Paint: not spray bomb Kerry)...
9. Engine Dyno (so we can fettle to our hearts content)
10. 30Hp bucket (got to set the Bar high).
11. Cast our own GPR engine (now its on the list Scotty:nya:)...
12. Fuel injection (maybe this item 4):facepalm:
13. Dig out all the ZXR400s for the 90's carb class.
14. Take "big stinky" to the sidecar "have a go day" in May.:scooter:




Happy 2014 Everyone

[Bert]

2014 Item 5.

future reference:
http://www.google.com/patents/US7510050

I was under the impression they were just a canister, but no... there is actually a little more too it. JUST.....

http://i195.photobucket.com/albums/z88/rockman107/Patent.jpg

blablabla --- its just fluid mechanics boys.... and not alot different in conceptual workings of the original yosi/muzzy link canisters of the 80's.... So who stole what...
blablabla continued --- also a solution deployed in pipes and the likes of power-stations to lesson the effects of cavitation since the early 1900's... blowhearts...


But if it can make the bikes a little quieter without compromising performance then it needs to be explored :2thumbsup


http://patentimages.storage.googleapis.com/US7510050B2/US07510050-20090331-D00000.png
In operation, power chamber 110 permits an increase in engine performance through the expansion and contraction of exhaust-sonics through the system. More specifically, power chamber 110 acts as a flow-enhancer by allowing smooth high speed exhaust gases pulses to travel through the system at full velocity, while unsteady exhaust flow is corrected by the additional chamber area available for the rapidly expanding exhaust gases. Preferably, the exhaust pulse enters power chamber 110, where it expands and then cools to permit at least a portion of the exhaust gas to contract. This expansion and contraction effect functions to accelerate the exhaust pulse through the header. In some circumstances, the resulting acceleration may produce a scavenging effect on the exhaust port, permitting a larger charge of air and fuel to enter the cylinder for a more efficient burn.

Additionally, power chamber 110 is adapted to attenuate reflected gas pressure forces approaching the cylinder thereby reducing the tendency of the returning pressure waves to “back up” and hinder volumetric efficiency of subsequent incoming cycles. As exhaust pressure waves hit restrictive points within the exhaust path, a rebound pressure wave is generated back through the exhaust system. Preferably, power chamber 110 is adapted to provide the exhaust pressure wave with an additional area of expansion at a critical point within exhaust system 100. Preferably, power chamber 110 is adapted to “bleed off” pressure as it backs up in the exhaust system 100.

Testing has demonstrated measurable gas-flow increases, through a header system containing power chamber 110, of nearly ten percent. Furthermore, exhaust gas sound emissions from the header system containing power chamber 110 are effectively reduced.

[John_H]

Another GPR150 engine rolled out the door to another happy customer yesterday....

Smiles all round; especially when he was already doing very well with the stock engine...
291624

still some refinement/tuning/running-in to be done.
But not bad as a first run up.

Nice. I will be coming and seeing you guys for the same service once I have managed to save some money up.

[seymour14]

Taumarunui. :yes:

[seymour14]

Taumarunui part two...:drool:

[seymour14]

Taumarunui, and being attacked by a T-Rex on the way home...:sweatdrop

[seymour14]

The T-Rex was so big it would not fit in the last sequence.

[Grumph]

In operation, power chamber 110 permits an increase in engine performance through the expansion and contraction of exhaust-sonics through the system. More specifically, power chamber 110 acts as a flow-enhancer by allowing smooth high speed exhaust gases pulses to travel through the system at full velocity, while unsteady exhaust flow is corrected by the additional chamber area available for the rapidly expanding exhaust gases. Preferably, the exhaust pulse enters power chamber 110, where it expands and then cools to permit at least a portion of the exhaust gas to contract. This expansion and contraction effect functions to accelerate the exhaust pulse through the header. In some circumstances, the resulting acceleration may produce a scavenging effect on the exhaust port, permitting a larger charge of air and fuel to enter the cylinder for a more efficient burn.

Additionally, power chamber 110 is adapted to attenuate reflected gas pressure forces approaching the cylinder thereby reducing the tendency of the returning pressure waves to “back up” and hinder volumetric efficiency of subsequent incoming cycles. As exhaust pressure waves hit restrictive points within the exhaust path, a rebound pressure wave is generated back through the exhaust system. Preferably, power chamber 110 is adapted to provide the exhaust pressure wave with an additional area of expansion at a critical point within exhaust system 100. Preferably, power chamber 110 is adapted to “bleed off” pressure as it backs up in the exhaust system 100.

Testing has demonstrated measurable gas-flow increases, through a header system containing power chamber 110, of nearly ten percent. Furthermore, exhaust gas sound emissions from the header system containing power chamber 110 are effectively reduced.[/I]

I'd call their patent dubious at best...Annan and Roe at Queens University in conjunction with Gordon Blair have prior work published on side resonator silencers - and i thought, patented too...
personally, when i read about Annan and Roe's work i made a side resonator muffler for a road bike in around 1988 or so....

[Bert]

2013-2014 North Island Bucket Championship.
Round Two GPR Summary.
The weekend started off with lovely hot sunny weather. But as forecasted the heavy rain arrived in time for Sunday (race day).
Only Regan (1st) and Scott (6th) qualified for the A-Grade, the rest (Kerry & me) were relegated to B-grade.
A Race 1 (Very Wet 10 lapper)
Regan got another one of his amazing starts and lead from start to finish untroubled. Scott battled up from 6th to 3rd with some amazing speed in the sweeper...
A Race 2 (almost Very Wet 15 lapper)
Regan hole-shotted and lead from start to finish, but was pushed very hard in the last couple of laps by Rick and Scott: whom had shown great control and speed in the wet to move up from 6th.
A Race 3 (Very Very Wet 20 lapper)
Regan hole-shotted and lead most of the race until Scott managed to stick a great pass on him in the sweeper (around the outside); and came home with the Win.
Scott also carded the fastest lap of the day when chasing down Regan.

B - Grade. Seconds and thirds for the boys.
But Race three finished with Kerry (when leading) crashing out after running wide on the grass and sending his bike spinning back across the track sending Brent (second at the time) flying over the handlebars. Great Team work gentlemen...

So overall a great weekend catching up with everyone.
Plenty of fun had by all (including the little GPR future racers who all enjoyed their first weekend away camping at a race meeting).. hopefully not too scared by the experience.


something to think about:
http://www.biker.ie/forum/showthread.php?t=194362

[seymour14]

You will all be pleased to know that things are progressing well, and am hopeful to be called down to the track sometime in near future to do a "noise test" (may take a scooter...!). Won't happen in time for this seasons N.I, but fingers crossed things progress smoothly and we may be re-invited back into the fold.

Let you know as things progress...:psst:

[codgyoleracer]

:angry2: yes well; I've finished my two day sulk/drowning my sorrows... back on the horse.

GPR tuned 150 motors... I have to say Scotty & Dave (and Colt Cams), have the build down-packed now in terms of consistency and repeatability.
The last four engines of the production line have produced almost the exact same power curve.
No matter how poorly they started at.



Right given its NYE: here is the 2014 Aims for GPR boys (lets hope we can tick off a few):

1. Get the Superlight F3 bikes running and out for the winter series. 550cc,400cc & 250cc.
2. Dig out the hydroforming kit from the back shed and start playing.
3. More Carbon Fibre parts....
4. Workable CDI...:angry2:
5. Exhaust systems <90dB (make the bikes super quite so we can sneak up on people)
6. Another Bucket Sidecar
7. Start replacing the RS125 running gear with other stuff.
8. Actually paint all the bikes (I said Paint: not spray bomb Kerry)...
9. Engine Dyno (so we can fettle to our hearts content)
10. 30Hp bucket (got to set the Bar high).
11. Cast our own GPR engine (now its on the list Scotty:nya:)...
12. Fuel injection (maybe this item 4):facepalm:
13. Dig out all the ZXR400s for the 90's carb class.
14. Take "big stinky" to the sidecar "have a go day" in May.:scooter:




Happy 2014 Everyone

Dont give Scotty too much to do, He'll get grumpy.......... and demand alcohol :-)

[koba]

You will all be pleased to know that things are progressing well, and am hopeful to be called down to the track sometime in near future to do a "noise test" (may take a scooter...!). Won't happen in time for this seasons N.I, but fingers crossed things progress smoothly and we may be re-invited back into the fold.

Let you know as things progress...:psst:

Cool, we have to be REAL HARD on nylon from the start if anything gets going.

Also worth discussing the wording of resource consents...

[koba]

Dont give Scotty too much to do, He'll get grumpy.......... and demand alcahol :-)

Makes his own doesn't he?

Like Motorbike, Build 10.

Like Alcohol, Build some.

[Bert]

Dont give Scotty too much to do, He'll get grumpy.......... and demand alcohol :-)

Time frames (long timeframes) are the key. Either or he still demands alcohol, but we have been working on maturing his taste to smaller amounts of the good stuff.



Cool, we have to be REAL HARD on nylon from the start if anything gets going.
Also worth discussing the wording of resource consents...

If we get on then we will be very hard on a number of things.
Nylon and noise will be top of the list. Bike presentation will be up there as well.
If this does unfold then we will be starting it off slowly and full bike checks etc will be undertaken; if... We will not want to blow this as its taken nearly 10 years to get this this point...


Makes his own doesn't he?

Like Motorbike, Build 10.

Like Alcohol, Build some.

Like dyno, build one na build three....

:cool:

[Bert]

Just as Mr Bucketracer thought he had enough to do; the team has decided that we all need to sort out the long forgotten 50's.

After digging around in the back shed (a multitude of engines & complete bikes have been uncovered).

Scotty has already posted the GT50; yesterday we pulled out the old RD50 (and a couple of semi complete RG50 engines). so there is likely enough to make 4 GPR F5 bikes (plus mine makes 5; shit almost enough for a GP within the team).... shit we are going to need a bigger trailer :facepalm:

So here's an update on mine (some will recall the last update; but now we are getting serious).

starting with an old TZ125 frame (saved from being butchered for a F4 bike) plus forks temporary from another project (will sort something else cheaper out shortly). DR200 swingarm modified to suit TZ linkage system (no, the TZ swingarm was robbed well before i got the frame by someone other than us)...

I was going to put in a RG50 engine; but yesterday we uncovered a YSR80 that turns out that bottom end is actually the same as a YSR50/RD50LC/DT50LC/TZR50 (good old Yamaha); minus the waterpump of the later LC models.

So to keep with my Yamaha fetish, the RG was removed. the YSR engine looks like it belongs in there.


292145

Now there is a TZR50 barrel/piston/head on the way (ex-japan) and this build now might actually happen.

292146

While it might not produce as much power as a RG50, I'm happy to have the Yamaha to complete the small two stroke set. (TZR50, TZR100/TZR250 & TZ250)...

[F5 Dave]

I'd chose the yam over the RG any day.

[mr bucketracer]

better post the rd50 bert

[mr bucketracer]

292163befor pic . .

[F5 Dave]

Remember that one well. But I meant TZR engine. DaveDs was fast.

[Bert]

better post the rd50 bert

as requested

292165




discussion on Cams and effects (reference for me):
Cam Change:

Typical effect
More Lobe Separation:

Wider powerband, more peak power,smoother idle
Less Lobe Separation:


Increased mid-range torque, faster acceleration, narrower powerband
More Duration:

Powerband moved higher in rpm range
Less Duration:

More low-end torque
More Overlap:

Improved signal to carburetor, lower fuel efficiency, potential for reversion
Less Overlap:

Improved low-rpm responsiveness, better fuel efficiency, engine may run hotter


Read more: http://www.circletrack.com/techarticles/ctrp_0701_camshaft_design_science/#ixzz2qIfFzvmS

[jasonu]

Remember that one well. But I meant TZR engine. DaveDs was fast.

A bit faster than a good RG50 but heavy and unreliable.

[mr bucketracer]

who can help me , i have stuffed up , i need a 36 - 37 tooth 520 spocket blank , think i'm over racing at the moment

[koba]

520?
You taking up superbikes?

Sorry, can't help with a sprocket.

Really bad weekend for you guys!
Still, you know they win when going good.

[koba]

http://www.waikatobearings.co.nz/anytime/pdf_files/anytime4e702123b7900p314.pdf

Maybe?

[Bert]

who can help me , i have stuffed up , i need a 36 - 37 tooth 520 spocket blank , think i'm over racing at the moment
It will come right soon buddy.


520?
You taking up superbikes?

Sorry, can't help with a sprocket.

Really bad weekend for you guys!
Still, you know they win when going good.

Svx550 is my guess.. What kind of rims are they Scotty??
It might be a case of trolling the jt sprocket listing and finding something to work with.

[mr bucketracer]

It will come right soon buddy.



Svx550 is my guess.. What kind of rims are they Scotty??
It might be a case of trolling the jt sprocket listing and finding something to work with.no idea what the rims are vtr maybe differt hub maybe ? anyway the 50 build is happing untill i die.....maybe lol

[seymour14]

A bit more video from the latest racing at Kaitoke a few days ago. Bit of Saturday entertainment. :ride:

http://youtu.be/epEIggFBn3Y

[F5 Dave]

Scott was getting some killer exit from that top corner and obviously some serious poke. I was having troubles trying to keep in touch in first couple of races.

what happened by pit wall? Carb starve?

[mr bucketracer]

Scott was getting some killer exit from that top corner and obviously some serious poke. I was having troubles trying to keep in touch in first couple of races.

what happened by pit wall? Carb starve?i thought the chain came of but don't think i put it into gear right and jumped out .

[mr bucketracer]

Dscf0230.jpg (205.8 kb)the fifty .. feel like a real bucket racer useing a rs frame ...was snaped in half

[F5 Dave]

GT50 huh? Not going to take apart the Sales 50?

[mr bucketracer]

GT50 huh? Not going to take apart the Sales 50?yes just put it under the crucher (-; gt50 just going in for the gp but have 3 rg50 engines which will fit 1 easy later

[mr bucketracer]

where do you get the eletric water pumps from dave?

[seymour14]

Dscf0230.jpg (205.8 kb)the fifty .. feel like a real bucket racer useing a rs frame ...was snaped in half

You've got about 4 weeks to finish, should be no pressure with so much time to spare!

[F5 Dave]

Well my flash one broke its wires at a tricky point & then came apart mid dyno run. Then cracked.

So I'm back to the dodgy galley pump $25 on trademe.

hmm, this one without the tap, but who cares at that price
http://www.trademe.co.nz/motors/caravans-motorhomes/parts-accessories/sinks-pumps-plumbing/auction-691685753.htm

has tiny outlet, but bike seems to run at same temp with either pump

[mr bucketracer]

thanks dave

[mr bucketracer]

DSCF0262.JPG
getting there

[mr bucketracer]

DSCF0251.JPG
Big k's bike near ready .. just a rear slick to go