Bucket update

[Sketchy_Racer]

You fuggen spud!!

you did the 1000th post!!

.... well at least this thread will just die now...

[Ivan]

No RG you did the 1000th post and no I wont let it die buddy


And I dont have a shed like a bike wreckers I got a mate who is a bike wrecker.


Umm it was ment to be showing you the ports I can not takea good photo tho

[Sketchy_Racer]

heres a pic that prooves spud was post 1000

[Buddha#81]

heres a pic that prooves spud was post 1000

Fark....um.........sorry.......was I not suppose to........I do feel very special tho.:rockon:

[Skunk]

Heres some pics of my bike:shutup:
What the ferk have you lenghtened the intake for?!

[Ivan]

I lenghtened it to fit a bigger carb into the engine,
With the standered mounting you cant fit a big carb with this you fit a big carb with ease as it hangs out the back and raises the height a tad,

At the mo im running standered carb again as my throttle cableis to short.
Its quite a basic idea

[Buddha#81]

Tunnelled rammed AX100. Victor Bray would be sooooo proud of you.

[Skunk]

I've fitted a 28mm flatslide to mine and hardly changed a thing.

Also the step in size from the carb size to the 'tunnel' will stuff up the airflow big time; not to mention the fact that the airflow 'signal' from the engine will be late and weak.

[speedpro]

I lenghtened it to fit a bigger carb into the engine,
With the standered mounting you cant fit a big carb with this you fit a big carb with ease as it hangs out the back and raises the height a tad,

At the mo im running standered carb again as my throttle cableis to short.
Its quite a basic idea

I used to have a TS100/125 engine with a small alloy adaptor bolted to the original carb mounting bit on the barrel. I then used a piece of radiator hose to mount a 32mm round slide Mukuni to that. All up it probably added about 20mm to the intake length. How big a carb are you trying to fit????

Regarding the extended length - I've tried that out. It doesn't work. If it's long enough, you get all sorts of funny harmonics happening at different revs which make it go real hard or real weak. You need the carb as close to the port as possible. The other thing is I notice that the case reed has been blocked. If you do that you need to extend the piston port timing to compensate as the reed valve allows extended gas flow after the piston port closes at certain(higher) revs. It is worth getting rid of the reed valve as it allows a nice intake port if it is all devconned up properly. The problem is it looks like the piston port is a single big hole rather than a bridged port. That is going to cause problems with piston cracking due to a lack of support if you rev it much.

[Ivan]

Nope the reed isnt blocked up I just took it out to polish that port,
I still am running one. I wont get rid of it unless I have aspare barrel so then I can always go back to stock.

Yeah the tunnel has been used before I got it from RG with a box of TF bits,
and its ment to work we had the engine running and it worked fine but Im not using it at the momment any way im still using standered carb.


The carb I am trying to run is off a old RM80 its identical to your carb.

[Expert]

Anybody know when buckets will start again in the Auckland area?
I know i asked before but nobody replied.

As promised, classic bucket!!

Classic bucket video worth a look!

[Ivan]

Nice one, haha
What is that bike looks like it needs a bit of TLC

[Expert]

TLC? That bitch doesn't respond to TLC!!
Treat them mean, keep them keen!

[Ivan]

haha, sounds fun you wai ttill those crsitchurch KBr's see it youl be hearing it

I cant watch the video to it I can hear it but there is no vid


I did hear a lock up tho and what sounds like a wheelstand

[Expert]

just get quicktime its a .mov file.

free download http://www.apple.com/quicktime/download/win.html

just click the box without itunes

[Ivan]

I got quicktime the latest version.


DOnt know whats happening?

[Skunk]

As promised, classic bucket!!

Classic bucket video worth a look!
Haha, looks like fun!

[Ivan]

Ok so my pipe is now done and is alot better it now hides under the frame,

Heres some pics they are still ok considering I took them in the dark haha


Now from what I know it is a YZ 80 chamber correct me if Im wrong,
May actually be a TF pipe

Note the fuel leak it is ok

I test rode it today no exhaust dragging yet!
NowI have to sort some shit out because the jetting has got stuffed up from it

[speedpro]

That pipe needs to be about 30cm longer, just guessing. I'd put about 10cm into the header and the other 20cm into the mid section. Unless of course that motor will pull 14,000rpm??

[Ivan]

darn,


Why is that?

What affects will I find with it as is?

[speedpro]

That pipe is very short, like F5's 50cc pipe. Because of that the tuned length is short which means that it will work at very high rpm. Without measuring anything I'd guess that it looks like a 14,000rpm(or so) pipe. Actually I have a laser cut pipe for a 14,000rpm 100cc engine and it is longer than that one looks.

The end result is that the motor will never get on the power.

When I was a young fella I made the exact same mistake. I had a pipe design that would have worked, but to me it looked better cut short, so thats what I did. In the end I had to put the missing 8" back in the middle to make it work.

It also looks like it has a very steep end cone which means it could make lots of power but it will not rev past a certain point and will come up on that point pretty hard. No over-rev in other words.

[Skunk]

Ivan - buy and read 'Two stroke performance tuning' by Graham Bell. He explains everything with examples in a clear manner. Very good book. Covers evrything from the carb to the gearing.
I have a copy and refer to it before I do anything. The Pickles got it for me and it's one of the best books I've got.

[Ivan]

That pipe is very short, like F5's 50cc pipe. Because of that the tuned length is short which means that it will work at very high rpm. Without measuring anything I'd guess that it looks like a 14,000rpm(or so) pipe. Actually I have a laser cut pipe for a 14,000rpm 100cc engine and it is longer than that one looks.

The end result is that the motor will never get on the power.

When I was a young fella I made the exact same mistake. I had a pipe design that would have worked, but to me it looked better cut short, so thats what I did. In the end I had to put the missing 8" back in the middle to make it work.

It also looks like it has a very steep end cone which means it could make lots of power but it will not rev past a certain point and will come up on that point pretty hard. No over-rev in other words.


Thanks Speedpro, I was hoping it would work, I didnt care about the looks I was concerened about ground clearence issues, If the pipe moves it will start to drag, I am kind of used to no over rev with my RS,

I am really going to do some work to it today want it to work

Cool thing is it actually sounds like a GP bike cross with a Moto X bike has quite a awsome sound to it:yes:

[k14]

Cool thing is it actually sounds like a GP bike cross with a Moto X bike has quite a awsome sound to it:yes:
Yeah thats the way. Who cares if its fast or not (not as if that matters on a bike you're riding :gob: ) so long as it looks good and sounds good its a good bike :rockon:

[Ivan]

Yeah I will try it out see how it works and then if I need to cut it andweld a new section in it.


14000 rpm I wish lol itd melt a piston before it hit that rev range,


I am going for a proper test ride today

[Ivan]

Yeah thats the way. Who cares if its fast or not (not as if that matters on a bike you're riding :gob: ) so long as it looks good and sounds good its a good bike :rockon:

Nah I dont want to think its good I want it to be good,
Meaning I want it to produce power, I took it as a rough guess thats a 80cc Chamber on a 100cc that it would work well,

[Skunk]

14000 rpm I wish lol itd melt a piston before it hit that rev rangeI don't think so Timmy...

I took it as a rough guess thats a 80cc Chamber on a 100cc that it would work well,
Not unless it's the same rev range etc. Do some reading!

[Ivan]

Yeah I would, But im not into wasting all my money on developing a bucket I would prefer to develop my RS 125.

Buckets is just my fun sport for me I do not take the racing serious in any way, As the 125 for the other hand that is my passion thats what I do and want to do professionly.


ANd witha buckets I thought the original idea was to build them out of scrap which I have done, I swapped an old XL125 bottom end for a chamber carb and throttle assembly


Now dont get me wrong I am not wasting anyones time on here gettign them to give me all this advice and im like F$&k that I wont do that,

No I want to try things out and whats a better bike to do it on than a bucket,
It would cost me money to get the steel the welding done etc for a chamber that could buy me new RS125 tires.

What I like about my bike is that it is, A Kawasaki ZZR250 Chassis, A AX 100 engine mounted in using part of the standered AX frame, A Tail Peice of a 1990 RS125 Honda A Expansion Chamber of a 1980 RM80 and porting done in my garage by doingtrial and error to me that is the fun part,

What I love about buckets to me isbuilding them out of as many different bikes as possible ask RG100!! I allready go with him down to mates swap parts with him.


I do want 2 stroke perofrmance tuning except its more dollars I have to spend I have borrowed and from reading the first chapter I really learnt alot


Now my babble is over that none of you will understand I best be getting back out to the shed for some work:gob:

[Skunk]

Now my babble is over that none of you will understand I best be getting back out to the shed for some work:gob:
You'd learn more, faster, if you first read then try.

[Ivan]

Hey SKunk youl be a happy man I scored a copy of Rua,


THANKS mate,

Its on its way in the mail cant wait to read it

Bling coming your way to mate

[F5 Dave]

Well this all seems a good time to talk about our new kittens:love: . The wife was very keen on getting two & names ‘her’ one Dangermouse because, well it’s an odd name for a cat. I got to name one. Kaaden.

Not that I told her but named after Walter Kaaden. If you googled it you would probably find out that he is largely credited as the architect of the modern performance 2 stroke engine. He largely is responsible for the expansion chamber. Read up how they work.

All that pipe will do is make nothing else you do make sense. Speedpro is a bit diplomatic saying it is too short. He should have said -It is Waaay too fucking short! The header doesn’t look like a header & there is no dwell. Conversely the stinger is too big a diameter for a 100.

An engine is a package, if all parts don’t match each other then none will be working well.

[Ivan]

ok Dave,
I have been for a ride on it but the thing was running too rich, Adjusted mixture screw but made no difference so I need to change the jet one size down,

Well even running rich, I still got clocked at 100 KPH.


It does stand up wheelstands tho but then humming it along (tell a liewas actually doing a burn out) the wodruff key snapped clean in half.

I thought id blown a piston by the noise it made.

Any way my 2 stroke tuning book has arrived thanks RUA

[F5 Dave]

Woodruff key will only snap if flywheel loose or not sitting right. Key is only for assembly purposes, not to hold it in place. Just look at any engineering equipment with a taper like a drill chuck.

If the tapers are made for each other (there are several different tapers/sizes between bikes) they can often be cleaned up with valve grinding paste & work back & forward then clean well.

[Ivan]

Keep it quiet its the one RG100!! made for me whilst he was here it snapped doing a burnout

[gav]

Reed valves, anyone run a 100cc two stroke, with a 28mm carb without one? Does it really make much difference? This is a MB100, so no rotary valve comments please, just curious what the effect would be....

[Ivan]

My reed cage thanks to some advice from expert I have bent the reed cage tabs bak so the reed petals will open more bent them as far bak as they would go

And Autosoled my ports again tonight so they look chromy,


Next big thing is to make the aluminum spacer to raise the height of my ports but i have a question!

How do you get your head machined down whodoes it?

[speedpro]

Reed valves, anyone run a 100cc two stroke, with a 28mm carb without one? Does it really make much difference? This is a MB100, so no rotary valve comments please, just curious what the effect would be....

Without blocking off the part of the intake port that feeds the crankcases it won't work. If you converted it to pure piston port it would be OK. I did that on a TF100 and it went real good (19.9rwhp) but their reed valve is just a sort of booster/rev extender unlike the standard reed valve setup on the MB. I would suggest fitting a 4-petal reed valve from something like an early RD350. It will fit with a bit of filing and devcon. You fit the RD carb mount straight into that and just drill another pair of screw holes to mount it using the original MB barrel threaded holes. Then a 28mm carb mounts straight on. I've done that as well and that also worked real good. I also mounted a carb mounting for a 32mm carb onto the same reed block and a 32mm carb and that worked very well with a bit of porting and a pipe (22.5rwhp).

[Ivan]

Far thats alot of rear wheel horsepower
Im hoping to get 10 HP out of myne haha

[F5 Dave]

Some 'expert' telling you to open the reed stops! They are there to help contain reed flutter. Unless you are running fibre reeds I wouldn't do that. Even then I wouldn't. Seems like a simple idea until you think about how the flow goes.

Tuners stopped polishing the ports in the late 70s. Read up about it. I just leave mine with a kind of honed look from a rotary stone.

Anyone with a lathe who can drive it can reshape the head or skim the barrel, can do skim on a mill but harder to get square.

Gav, to clarify the TF & AX are 1/2 reedvalve 1/2 piston port engines. The MB is designed from the start as full reed. A further option is the reed straight into the crankcases, but that is somewhat more modern. MX engines, RSs etc.

[Ivan]

the AX is a full crankcase induction it has no inlet port into the barrel it runs striaght in to the crankcase

Expert is a Kiwibiker member I didnt say Expert as in a expert tuner I ment it as in his name.

The reason I polish the ports is because I have talked to alot of people who did it and that was were they got power from, they say to make the exhaust smooth as possible.

If it dont work I wont do it,

Its kind of trial and error becuase I have 1 person saying polish theports another saying dont 1 saying open the reed stops one saying dont,

All I opened them for was because I have been told it works I remember RG once telling me to open them up as well,

!!!!!!MAN I AM CONFUSED!!!!!!:shutup:

[F5 Dave]

Didn't realise AX didn't have piston ports. May be an idea to make some like an RG (or PE/RM of that era).

Well take everything with a grain of salt, sometimes you have to try everything. But I would trust people who build fast bikes more than enthusiastic typers.

But most of all read that book by Bell. He covers all those points.

[Ivan]

Make some what? Piston Ports? or Reed cage?


Take everything off with a grain of salt?

I like to take advice from everyone and yip I the thing I like about you is your bikes are fast and you get high horsepower!

But yeah I also listen to expert I listen to all and take advice from everyone as you guys all make faster bikes than me.

But please explain my top questions dave?

[F5 Dave]

Well in the real world you have the inlet port setup that would favour doing the best suzuki could with it. That would mean making some inlet ports in the back of the cylinder & making sure they are nice & straight with say 170 deg duration to start with.

This may mean devconing the inlet forward to the barrel, but not sure what it looks like. Basically same design as an RG50, but try more like an RM or RG250 as designed for more power than commuting.

I'd want to make that inlet about 20 -30mm long from the barrel. (Shorter for super high revs which this engine won't be ok for). This means a quantum change.

[Ivan]

What you are saying is make some inlet ports in the barrel?

That seems outa my league I pefer to get someone who has done it to do that for me.
Isnt crankcase induction the best like most modern 2 strokes RS RM etc?

[F5 Dave]

Yes, but that really requires a complete change of architecture, your engine would require a huuoge amount of work to be full case reed like modern, well to do it properly as opposed to like it is with a single sided reedblock at a funny angle. Then there is the other transfer ports to make it work well.

[Ivan]

Yeah I think ill leave it as is and raise the port height then grind down again to make it go better,


Far more simpler and a bit more safer in my opinion rather than making it a new engine Id prefer to develop somethign like a rg50 something which is water cooled and has a good gear box!

Hows your RGV125? Is that gonna be racing this season?

[F5 Dave]

should be. Entirely in parts but I have everything, just need the time to fire it back together, but my 50 will still go fine for this race.

[Ivan]

Sweet yeah I really like your 50 its cool as and the noise it makes is awsome
Sounds hardtoride tho.:rockon:

[Expert]

Now everyone can be a two stroke tuning expert!
No boring architecture or quantum leaping for us!
http://www.kreidler.nl/artikelen/performance-tuning-graham-bell/performance-tuning-graham-bell.pdf

[Expert]

No longer is two stroke tuning a black art reserved for the boffins! Behold!
www.bkarting.com/tech-docs/expchmbr.pdf

[Ivan]

buety Expert,
Now everyone has a copy of this book its really halepful,
Is this the first edition I wonder?


SO you done much to the classic bucket?

[Skunk]

Looks like it to me. Or an early 80's edition. It's missing at least one page that I can see (I printed one section for the workshop - I was going to photocopy my book!).

Got eveything fitting and bolted up on the AX. But I had to cut the chamber. I don't know why, but it wouldn't bolt on to the new engine AND to the frame. Oh well, take a mm or 2 out and rotate it a couple of degrees and it's happy. Just got to weld it up now.

Won't going to Manfeild this weekend. Won't have time to get it running tonight and I'm not going up there to find out IF it will go.

[Ivan]

Yeah and Manfields a pretty fast circuit yould probably blow the thing up there ringing its neck out, Is it the same frame? If so I dont no why the chamber would need modifying.


What size base gasket you running?

[Skunk]

Yeah and Manfields a pretty fast circuit yould probably blow the thing up there ringing its neck out, Is it the same frame? If so I dont no why the chamber would need modifying.


What size base gasket you running?
Standard one.

[Ivan]

Sweet as.


I need to get a flywheel key for myne to get theflywheel on in the right place as at the momment its only splutering

[Ivan]

Sweet as,


I hope it goes good for you, you should start it down your street that would be your best option. SO long as your neighbours dont mind mine dont mind.


I have been reading that online version of the 2 stroke book as it has the specialty tuning for bikes which is quite good dont know wether or not tot une it more like a moto x bike or enduro bike dont want to tune it as a road racer as that is really high RPM

[Skunk]

The AX is only really good for 8000rpm standard. And with a 4 speed box I'd go for torque.

[Ivan]

Yeah I noticed that you need a real good power spread since its a four speed box to get any chance of riding it fast, I have mine running well now it is soundign like a moto x bike too whichis cool

[Blackflagged]

Hi i`m building a 50cc Bucket,Read Bells book!Been checking a few barrells and seem to be a trend towards ,longer transfer timing and shorter Exhaust.
Any recommendations.

[Ivan]

Now I dont know the answer to this but just wodnering your reason as to why?

Also what Engine is it? Is it a RG50?


Have fun in your buildand post up some pictures :2thumbsup

[Blackflagged]

Now I dont know the answer to this but just wodnering your reason as to why?

Also what Engine is it? Is it a RG50?


Have fun in your buildand post up some pictures :2thumbsup

Rs50,want more power than stock.Planning on porting it,but ill need a reasonable spread of power.

Have a look at attached photo,not my bike but interesting pipe design!

[gav]

The Tularis is powered by a modified two stroke engine out of a snowmobile!

[Ivan]

Rs50,want more power than stock.Planning on porting it,but ill need a reasonable spread of power.

Have a look at attached photo,not my bike but interesting pipe design!

I had a real nice Aprilia RS50, These engine go quite well I think I have the design for a expansion chamber somewere here for one ill have a look for you. I know of one making 16 horsepower at the rear wheel. I noticed standered tho they dont have good power spread its all top end rev

[Ivan]

The AX is only really good for 8000rpm standard. And with a 4 speed box I'd go for torque.

Now to get torque what are some good ideas? I am reaidng the 2 stroke book but just wanted to know some of your guys ideas.


I would tend to lean towards more of a enduro style engine as it is designed for bottom end mid and top they are desinged to be ridden slwo and fast were as a Road racer is designed to be ridden fast.

[Skunk]

It's mostly in the pipe design. Keep reading.

[Ivan]

haha yeah will do.
I really need to stop being slack and build my base spacer as that would work well.

[Blackflagged]

I had a real nice Aprilia RS50, These engine go quite well I think I have the design for a expansion chamber somewere here for one ill have a look for you. I know of one making 16 horsepower at the rear wheel. I noticed standered tho they dont have good power spread its all top end rev

WARNING,before clicking on photo-You may want to sit down,if your easly excitable,or prone to dizzyness.

[Ivan]

That is nice!
Far it looks really serious. Did you do that what year is it the 2000?
Dads was the 99 apperntly one of the fastest around the wellington region for a few years but I dont believe that, F%'s bike is way more trick than dads old Aprilia. I now have the frame and have a XL125 engine in it which is a piece of shit. I wonder if the AX would fit straight in there:innocent:


:nono: Woops better not do that or I wont get to race it! Better just finsih building that XL engine, Last time I rode it I got 1 K and lost the chain becuase the stupid aprilia 110 chain setup and you cant go thicker on the 1999 whereas the 2000 you can.


Got any pics of Your chassis?


Man I wouldnt want to touch that engine looks to mint,


(Thinks he can make his 50 look that mint)


Might go prep the 50 up so im out off here laters all you boring sods that have to refer back to this lame thread that never really gets any were except for getting good advice.

Ivan

[Ivan]

Well apon trying to start my RG50 I find out that ithas a crack in barrel were the exhaust bolts to so i took the engine out to get it fixed properly


So back to the AXI went and decided to Make some Gaskets out of card so I have a shape to trace on to the Ali plate, Well I made 2 pieces that were over 2 mm thick out of a Shapes biscuit box:mellow:

It did raise the height of the barrel and I started it it runs sweet so I am going to try make my ali spacer today


Laters all

Ivan

Oh I will post some picsof what colour scheme I might go

[Sketchy_Racer]

Go the green Ivan

ohhh, and it is official i have a bucket...

But all will be revealed when its done ;)

[Ivan]

I know all about this bike,
Yeah the green is snot green, haaha well the frame sadly is a Kawasaki frame which sucks:gob:


Might be keen on swapping frames with you:innocent:

[Blackflagged]

Well apon trying to start my RG50 I find out that ithas a crack in barrel were the exhaust bolts to so i took the engine out to get it fixed properly


So back to the AXI went and decided to Make some Gaskets out of card so I have a shape to trace on to the Ali plate, Well I made 2 pieces that were over 2 mm thick out of a Shapes biscuit box:mellow:

It did raise the height of the barrel and I started it it runs sweet so I am going to try make my ali spacer today


Laters all

Ivan

Oh I will post some picsof what colour scheme I might go

"Greens Nice"-dont forget,if you raise the barrel 2mm,you will need to get 2mm,machined off the top of the barrel.:sick:

[Ivan]

Yeah I know that one,
The good thing is my head gasket is homemade and is like half a mm thick or something so the compression wasnt altered to much,

I have some new tires for the bike as well,

Well not new second hand old stuffed ones which dont work on a 125 anymore,

I have a Wet for the rear as in wellington its never hot enough to get a good slick hot and never hot enough to cook a wet,
And a Slick for the front which I am gettign cut with grooves in it so when it rains I still have some grip in the front end as I hate crashing:shutup:

[Ivan]

Hey I made the base spacer,
Its 1.5 mm thick but doesnt really raise the port height to much.
I dont fell like cutting the ports now because theres no need.
I think the altered port timing tho should make a difference, SO I am gonna get some pics to show you guys,

Haha made it with a file ,a sheet of Alumininum a vivid and a strong little ginga man,

Shame its to late to start it up now, to see what it goes like:mellow:
Now this bike is going to be RING DING DING past Glens little bucket bike he now owns.

I cant wait to race this bike, Should be fast as now, NowI just need to Dyno this bike to see what horses she is pulling.

Closeto 70 I think:dodge:


Now come on fellow bucketers how many horses is your bike making?

[Skunk]

9hp at a guess. Don't care - it's still too much for me.

[Ivan]

9hp and the ZXR And the ported bucket?

[Kickaha]

Now come on fellow bucketers how many horses is your bike making?

The Gn was 13.5 before we did the cam and made it a 150

[Ivan]

that aint to bad,

really, have to Dyno myne to see what sort of horses Im making its making alot of power

[Skunk]

You mistake noise for power...

[speedpro]

Raising the barrel 1.5mm is a real good start. You have of course measured the port timing as a basic measure of where it's all at now?? No, of course not. Raising the port will generally raise the revs the motor works at and with other appropriate mods it'll make more power. However with the compression now at 4.73:1 I doubt that "Im making its making alot of power" this is true.

[Ivan]

power doesnt exist without noise.


a ring ding ding ding ding ring
ding ding ding ding ding ding
ring ding ding ding ding ding
Braaap Braaap


Crazy Frog

[Ivan]

Hey Speedpro please advise me if you know of what to do as I do not have a clue to be honest,

I know how to build a engine and ride it and make one run but not perofrmance tune one Im just trying to learn, If you advise me what the mods I could do is I will do it,


Ivan

[speedpro]

Hope we're having a couple of "Newbie" sessions on Sunday. I've got some people coming out to have a little play on #6. Had a look at it today. Was gonna check a few things but couldn't be bothered in the end. F5 didn't mention anything so I suppose it's still OK, apart from the handling.

22.5hp when it was fresh, bit less now after years of thrashing.

[Ivan]

Yeah I wont be racing this round as I start back at tech with no coinage what so ever and need to get there for a week unless a miracle happens.


Kinda happy and gutted at the same time Im happy because I got a while now to set the bike up properly and do a service on it,

Speedpro or someone please explain to me ehat you mean.


Ivan

[Ivan]

Hey is this common for the engine to want to die at the bottom end and really rev when up high? or is this lean? I rode up the driveway and the revs pickled up as i was accelerating round a bend nearly crashed the thing. It dont feel right, I think there may be an air leak in spacer I had the top off and ran a sealent through it but now its like BRaaaaaaaaaaaaah Bring


dont know if thats right at all


I know the RS125 revs at the top end but you can keep the engine running at bottom end power its really got me confused I dont know wether its timing or a lean engine?

[Sketchy_Racer]

you idiot ivan..

You need to get 1.5 mm skimmed off your barrel if you put a 1.5mm spacer in.

You'll have next to no compression, and really weird port heights....

Do things properly, or dont do them... i thought you figured that out already?

[Ivan]

Nah well the standered base gasjet is 2 mm thick so with that removed and mythin .5 mm gasket it is the right compression but still to low yes I am gettign 1.5 skimmed off it too,


Heres a pic

[Sketchy_Racer]

2mm thick my ass!!...

Maybe 0.2mm thick!!

[k14]

Have you measured the squish? If what you are saying is correct and the original gasket was 2mm (which sounds strange) then what have you achieved by putting a 1.5mm piece of alu and a 0.5mm base gasket in?

I bet your squish is like 2.5mm+ now.

[Sketchy_Racer]

whos a clever (ginger) monkey!

[Skunk]

Heres a pic
Of what? The head clearance?

[Sketchy_Racer]

more like an empty head

[Ivan]

haha typo error,


The standered head gasket i got is 2mm thick lol thats what i ment to say:sick: :sick: :sick: :sick:

[Buddha#81]

Fark who did Dangerous root 16 odd years ago. Thats scary that there is two of them in existance. Go The GINGERNUT

[Ivan]

hahaha typo error i said nope im not dangerous same coloured leathers tho getting dodgyer every second im gonna shut up:rockon:

[F5 Dave]

Re the Bell book (good find btw) check out page 69 for what I was saying about bending the reed stops. In some cases different reed materials you can do this, but std reeds will be best with std lift.

[Expert]

Cool T-shirt Ivan, good to see you're supporting the auckland riders.

[Ivan]

yeah I know I dotn watch rugby tho

[CM2005]

Hi, im looking for a KE125 piston to compare to some from out of a KR250. If anyone has a burned one, or something out of a seized kwakka bucket, i'd be very much obliged. and a KZ440 rear wheel!

[Kickaha]

Hi, im looking for a KE125 piston!

PM TonyB he sells them and might be able to give you some idea on dimensions

[stanko]

Tyger Tung is looking for one or more pistons for his KR so let us know if you find an alternative.

[Ivan]

Re the Bell book (good find btw) check out page 69 for what I was saying about bending the reed stops. In some cases different reed materials you can do this, but std reeds will be best with std lift.

Page 69 is all about exhaust systems

[Expert]

I found a site the other day which lists just about every piston ever made for bikes, compression heights, gudgeon pin size etc. so it's usefull for comparing.
If i can find it again i'll link to it.

[Ivan]

Ok I just finshed building my Air Box for my bucket, its quite flash everyone will want one especially the 125GP boys

Its a top top ice cream container,
I cut a whole in it to slide up over carb, then I found 2 pieces of tube cut holes for them and mounted them inside the box one sticks out side of frame, sucking air coming from the side and one going up through the frame and out the front sucking air being forced into it from the frotn then I greased the plastic airbox internal up so any dust and bugs in summer wont get sucked into the carb as easy.

Hope it works,
Its basic real cheap,
but should prevent less water being sucked in the rain than the podfilter I had on, THe pod works well in the dryair but rubbish in the wet as water sucks straight through and kills it,

And the airbox has space in the bottom for water to drain to and not get sucked into:scooter:

[F5 Dave]

Page 69 is all about exhaust systems
Page 69 of the book! Those are those funny numbers in the corners. is page 72 of the pdf.

[Skunk]

Got the correct timing setup in the AX... Anyone like to guess the torque setting for the head?

I have no idea, as the last head I did was a Charger.

[ajturbo]

Fark who did Dangerous root 16 odd years ago. Thats scary that there is two of them in existance. Go The GINGERNUT
his hand:sick:

[Ivan]

Got the correct timing setup in the AX... Anyone like to guess the torque setting for the head?

I have no idea, as the last head I did was a Charger.

I do 22 foot pounds of torque same as my rs125 or me and RG just tighten it till it feels tight and it must be sweet

[speedpro]

My torque wrench has a sheet with standard torque settings for various dia. bolts. That's all I ever use. 22 sounds a bit high to me, especially considering the stiff cheese barrel that the studs go into.

[Sketchy_Racer]

Ivan you twat.

18f/lb is the head bolts on the RS...

[Ivan]

allgood i dont do that dad does theres one bike i got tho that does 22ft punds

[Skunk]

Ivan you twat.

18f/lb is the head bolts on the RS...
Cheers RG, that sounds right-ish to me. I can't find anything on the interwebby to tell me.

Ivan - are you trying to break my bike?...

[Ivan]

Cheers RG, that sounds right-ish to me. I can't find anything on the interwebby to tell me.

Ivan - are you trying to break my bike?...

No why would I do a thing like that:innocent:
Nah i just tighten myne till it fells tight enough

[speedpro]

Nah i just tighten myne till it fells tight enough

Why am I not surprised?

[Ivan]

umm because its a bucket:dodge:

[speedpro]

umm because its a bucket:dodge:

aahhhhh yeah. that's it.

[Ivan]

haha

Saw some of the bucket guys the other night especially AJ im still having nightmares,


I also have spent alot of time blueprinting my engine thats all i wanted to say

[CM2005]

haha

Saw some of the bucket guys the other night especially AJ im still having nightmares,


I also have spent alot of time blueprinting my engine thats all i wanted to say
does blueprinting mean you print out blue paper, and glue it to your engine?

[Skunk]

In Ivan's case - yes.

And 16 was the correct answer to my earlier question. Now to get a good torque wrench.

[Ivan]

does blueprinting mean you print out blue paper, and glue it to your engine?

Now I dont know if you know what it means but Blueprinting is bringing the engine up to manafactures (sp) specs, as when bikes are built ports dont match up properly etc and you fix that,

[Skunk]

Now I dont know if you know what it means but Blueprinting is bringing the engine up to manafactures (sp) specs, as when bikes are built ports dont match up properly etc and you fix that,
Things like the correct torque settings eh?

[Ivan]

hey tigtning to tight will only up ya compression:gob:


I know youll thank me maybe:yes:

[CM2005]

Now I dont know if you know what it means but Blueprinting is bringing the engine up to manUfactureRs (sp) specs, as when bikes are built ports dont match up properly etc and you fix that,

yeah, i know watcha mean. lol.. i've noticed u get a hard time from every1 lol.. oh, and i don't used a specific torque setting either! till they're tight! haha, but i've never had an well tuned 125gp or sumthing!

[Ivan]

thanks all these guys give me shit cause they no im far cooler than them i is the biartch magnet

[Skunk]

If I understood that I'd refute it. These are for you Ivan; T'kwI'.Iam. They seem to have fallen off your previous post. You have some strays too.

[CM2005]

wat? if i understood that i might be able to laugh at it...? lol.

[gav]

Now I dont know if you know what it means but Blueprinting is bringing the engine up to manafactures (sp) specs, as when bikes are built ports dont match up properly etc and you fix that,
And is that all that Blueprinting involves is it? :innocent:

[speedpro]

Piston to bore clearance, deck height, squish clearance and width and angle, port height and alignment, combustion chamber volume, ignition timing, all sorts of stuff to do with the reed intake, bearing clearances, crank end float and clearances, clutch condition and operation, lubricants and levels, crank balance factor and piston weight, crankcase volume, plus a whole swag of other stuff.

Most of that gets changed if you want to bucket race so actually blueprinting the motor is pointless because then it will be all wrong for the intended purpose.

But that's OK as Ivan won't have done any of this. To make a motor that hauls arse you have to measure every single thing (which he hasn't done and won't do), then modify it to ideal specs for the intended purpose (which he doesn't know as he won't read the books), and then remeasure the whole lot again just to make sure you didn't screw it up.

Ful time with all the gear it takes me about a day to measure

[Ivan]

ummmmmmmmmmmmm

dont know were you get these facts from,
I do read the books no I havent done bottom end but i matched the whole top end bar piston as the piston is to old

[Sketchy_Racer]

God you are grueling ivan.

and just so plainly ignorant so often.

[speedpro]

ummmmmmmmmmmmm

dont know were you get these facts from,
I do read the books no I havent done bottom end but i matched the whole top end bar piston as the piston is to old

So , , , the squish clearance is ??? and the combustion chamber volume is ??? and the compression ratio is ???. And also is that the swept volume to trapped volume or some other method or value? Have you actually measured the stroke? Quite often the stroke is not exactly as advertised due to tolerances when the crank is manufactured. It can be enough to make a differance when you are calculating compression ratio, especially once you get it up round 15:1.

You "matched" the top end? What does that mean? You didn't actually measure anything I bet.

Of course if you can't give out that info due to performance secrets and that sort of thing I will understand. :yawn:

[Ivan]

sorry bout that not feeling well and just got agro real fast hardly any sleep the last few nights and constantly being sick


What I mean by the top end I mean I removed all the lips on the barrel and made sure everything matched properly and no gaskets over hung into the transfers andthe manifolds matched each other.

Like I said sorry if I sounded agro didnt mean to sound like a arrogent prick

[Ivan]

Piston to bore clearance, deck height, squish clearance and width and angle, port height and alignment, combustion chamber volume, ignition timing, all sorts of stuff to do with the reed intake, bearing clearances, crank end float and clearances, clutch condition and operation, lubricants and levels, crank balance factor and piston weight, crankcase volume, plus a whole swag of other stuff.

Most of that gets changed if you want to bucket race so actually blueprinting the motor is pointless because then it will be all wrong for the intended purpose.

But that's OK as Ivan won't have done any of this. To make a motor that hauls arse you have to measure every single thing (which he hasn't done and won't do), then modify it to ideal specs for the intended purpose (which he doesn't know as he won't read the books), and then remeasure the whole lot again just to make sure you didn't screw it up.

Ful time with all the gear it takes me about a day to measure

Well Speedpro one day I may just get you to give me a hand with my engine,
I am serious about this engine and I want to get it going real well so it Hauls ass and yes I admire yours and Daves tuning knowledge,
I dont mean to type arrogent its just how it comes out I type and dont think it will annoy anyone one but it must at times.
I do things at the momment to see if they work.

[Skunk]

I do things at the moment to see if they work.What everyone's been trying to tell you is read the books. It'll show you the theories and practices that work and how they work together.
Ideas have been tried that seemed pretty good at the time but are no longer used. Books will tell you why, and what ideas replaced them.
It'll save you years...:brick:

:corn:

[Ivan]

yeah exactly,

I do listen,



I am reading the book right now as well.

Im just now at a desision to make the port wider? or make it higher?

Making it higher alters porttiming sometimes for the good some for the bad

Wideining it makes the power better and lets the gases out but then makes more of a chance of grabbing rings and yes I have read the book on this.

[speedpro]

The books are a good start. I still have only ever measured time area angles only once. Unfortunately if you ever get REALLY serious you'll need to fork out for some software and then upgrade it every year at least. At that point it's better to get someone with the software to do all that sort of mucking round for you. I've also come to the conclusion that it's worth the money to get someone like Pete Sales from Total Motorcycles to do the basic porting. He knows what he's doing and won't go overboard and ruin the barrel.

Thinking back, you mentioned that the piston is worn. The best performance enhancing mod you can do is probably to get a fresh piston for the motor. Aftermarket ones are pretty good prices. Keep the tolerances tight, treat it right and she'll go heaps better. While everything is getting machined it's a good opportunity to optimise squish and compression, and even change combustion chamber shape if needed. I got around 2hp from changing the shape alone on one motor. That was on a sleeved down RGV250 cylinder and head. Those things have disgusting chambers, probably to allow the plugs to be angled to clear the radiator on the front cylinder.

[Ivan]

yeah I might just do that,

Is Pete still doing that stuff?
Just wondering as when I was talking to him he said about his lungs and that from doing all the Dyno work and wondered if porting the fibres of steel in the air would affect him.

Yeah also how manyother KB guys do basic 2 stroke porting? I would be keen on paying someone to do it depending on how much it costs.


The reason I run a old piston is because I want to make sure nothing grabs or nips after we haveworked on it so thatIf I melt or sieze aold piston it aint as bad as doing it to a new one once I get a basic Port job done Ill buy a new piston.

I have a better expansion chamber for my bike will post a picture of it and see what you think. This one can be modified quite alot as well.

[speedpro]

you need to get it bored before you get the porting done as some of the ports are angled and by enlarging the bore you eat into the port and because of the angle the port timing will be altered. You won't melt a piston unless you do somethng stupid. You need to start RICH (real rich) and knock the timing back then sneak up on it. If you run higher compression you will need a YZ80 ignition or similar to get the required advance/retard of the ignition. Otherwise it'll run like a sack of shit down low OR it will blow a piston up high.

[Ivan]

I actually have a KX125 igntion here CDI and Flywheel and stator I want to get it running on my bike so the Advance Retard function works.


Do you have a email for Pete at all?


Actually might get hold of MR Turbo he is his neighbour or something

[speedpro]

I'm not familiar with those ignitions but I'd expect it'd be ideal.

[Ivan]

so it wont be versatile uncle bob


lol

Itruns adiffernt taper to theAX crank so that wont work without modsim gonna goget a pick of my new expansion chamber and see what you think

[bungbung]

I'm not familiar with those ignitions but I'd expect it'd be ideal.

The advanced retard model is ideal for Ivan's use.

[k14]

The advanced retard model is ideal for Ivan's use.
Yeah, bar the advance part..........

[Ivan]

not even funny :angry:

[gav]

True, it wasnt to K14's usual high standard, but did raise a smile, if somewhat predictable though.....

[Ivan]

Yeah I kinda knew that was gonna come when I read bung bungs reply.

Any ways my whole bike is at tech and is gettign everything done properly so it will run well.


Anyone know about machining flywheels on the lathe? for lightening them?


managed to sort my shit out so I dont have so many buckets sold the XL engine last night.
Sold it a dozen Ranfurly so thats one less bike to worry about and just rweally concentrate on getting ax going and hauling ass then concentrating on getting my 125 engine developed for the nationals.

[gav]

Why an AX? Will it still have a 4 speed box?

[Ivan]

Just because the AX is already running and has no issues so I can then work from there,

Yeah 4 speed box that shouldnt be to bad if geared properly,
Not like it will be ringing its neck out down a straight like you guys do at Ruapauna.


I might do a 6 speed conversion to the engine if it fits..........................

But not at the momment

Its starting to look like it could hit the race track soon.
Shame I have to wait till Monday to continue working on it!!!!!!!!!!!!!!!!

Do any guys in Chch run AX engines?
Only ever seen one race down here and thats Skunks one.

Might get a proper porter to port the engine for me just to give it abit more power but nothing serious.

New Piston kit will be getting ordered from TKRJ or whatever they are as they look good and a good price to

But going to suss the bike out first get it running mint then new Piston kit and away with racing we go

[Skunk]

Do any guys in Chch run AX engines?
Only ever seen one race down here and thats Skunks one.
New Piston kit will be getting ordered from TKRJ or whatever they are as they look good and a good price to
There's a (4-speed box) reason that I'm the only one silly enough to use an AX...
As for the piston - order that from http://www.motoequip.co.nz (TonyB) or else!

[Ivan]

thats who I was buying it through.


I beleive the AX has alot of untapped potential and no one bothered developing one because of the gearbox issue but other than that they are a good engine

[speedpro]

Anyone know about machining flywheels on the lathe? for lightening them?

don't bother with mods to the stock ignition. Get the taper recut in the rotor of the KX ignition then make an adaptor plate to mount the stator in the AX engine. That taper recutting MUST be done VERY carefully as it has to be dead true.

Any mods to lighten the ignition will probably end with a rotr weak enough to fail at some time - I've been there, tried that. Some ignition rotors like MB100 ones have a decent size chunk of steel plate riveted to the rotor. It looks like it is OK to just pop the rivets and take it off. It does work and the results are good, BUT, the rotor then flexes enough to shag the rivets that hold it to the central boss. As for lightening the KX rotor, you won't need to. Even using an external rotor, as opposed to say an early YZ80 internal rotor, they don't cause a problem and are pretty light anyway.

[Ivan]

Yeah sweet thanks for that.


Bike will get it running first then do the ignition change

[Ivan]

who knew that a xl125 engine tasted so good......................


The Super bucket as it is to be known is looking madder than ever
Wire wheeled cases to get that bling factor to it
RS50 Aprillia chassis with a tight chain and aligned engine... YES....
And is bolted up properly and had engine mounts made so it should be a goer soon like next few days if I was to work on it but I wont end up doing that as I will have a few other engine jobs for tech to do

[Blackflagged]

Here`s a real super bucket,power standing!,fast on or off road!

[Ivan]

haha mighty FA50 or C90 or something like that:rockon:

[Ivan]

the stator doesnt alter the advance retard does it? It is the CDI box so if I convert my igntion to a tf100 or tf185 igntition and flywheel and run the CDi from KX125 it should be mint.


Also what are your thoughts on converting the reed system similar to the cr80 system like what is done to MB100's?


Very surprised my mate at tech and me ported it nothing hard out but we basically improved the flow of the exhaust I got told to open the exhaust port width not height as this will allow more gas to exit but wont fuck up port timing but we want to check it out first. My mate polished the port as he wanted to and polished it and the head so well and the piston crown that they are a mirror finish,

Then he reshaped the way the inlet port flowed into the system then when we put a kick start on half way through first kick mounted in aprilia chassis it fired up into life and actually revved quite well without riding it I dont know if it is any good or not but from guessing I reckon it is but you dont know until you ride it which should be next week

[JayRacer37]

Then he reshaped the way the inlet port flowed into the system then when we put a kick start on half way through first kick mounted in aprilia chassis it fired up into life and actually revved quite well without riding it I dont know if it is any good or not but from guessing I reckon it is but you dont know until you ride it which should be next week

Ivan...do u know what a FULL STOP is?? take a deep breath, you might need it after that speil!!

[stanko]

Ivan...do u know what a FULL STOP is?? take a deep breath, you might need it after that speil!!

I think thats what is making him dizzy.

[Ivan]

Ivan...do u know what a FULL STOP is?? take a deep breath, you might need it after that speil!!

I do know what one is I just cant be bothered to add one

[JayRacer37]

I do know what one is I just cant be bothered to add one

well, thats just piss poor on the effort front. No wonder people don't often bother to read ur dribble, its far too hard to make out :D

[Ivan]

your just jealous my buckets gonna be faster than yours

[Skunk]

Here you go... "You're just jealous my bucket is going to be faster than yours."
Copy and paste.

[k14]

your just jealous my buckets gonna be faster than yours
pity the rider isn't :shit:

[Bert]

Here you go... "You're just jealous my bucket is going to be faster than yours."
Copy and paste.


heehee well said skunk. how long has this thread been going. looking back over it mr Ivan has asked several question time and again.

can't wait to see the finished product. I think he has picked the brains of every bucketer in the country, so it should be a fast bike:sick: :sick:

get it finished boy ! once its going then you can write about how fast it is. :nono:

my two cents.

[CM2005]

cool, i'll be keen to see some pictures if you've got any. Anyone know how to make a GP125 faster? without too much money?

[speedpro]

cool, i'll be keen to see some pictures if you've got any. Anyone know how to make a GP125 faster? without too much money?

no. Oh wait . . . . . . pay someone to tow it to the top of a big hill

[Ivan]

no. Oh wait . . . . . . pay someone to tow it to the top of a big hill

hahaha


or buy a AX100!!!

[Buddha#81]

cool, i'll be keen to see some pictures if you've got any. Anyone know how to make a GP125 faster? without too much money?

If it goes don't fark with it, pull all the road gear off, get some good rubber and the required safety gear and have fun on what will be a reliable good fun wee bike..... start pissing with it and it will cause you no end of stress and costing alot of money. Use good oil's listen to guys that have raced for some time and ask plenty of questions most guys will be more than happy to help you out.

[CM2005]

Cool, as for the hill, its out by my letterbox! Apart from getting all the road gear off, the only thing i was thinking of was maybe improving the brakes with a braided line or something. Do they run better with the airfilter out? I haven't even got it yet, it goes but its smokey supposedly. Hopefully its not drinking the g/box oil..

[Buddha#81]

Cool, as for the hill, its out by my letterbox! Apart from getting all the road gear off, the only thing i was thinking of was maybe improving the brakes with a braided line or something. Do they run better with the airfilter out? I haven't even got it yet, it goes but its smokey supposedly. Hopefully its not drinking the g/box oil..


Leave it standard (air filter in) suzuki designed it that way, as for the brakes bleed new fluid through. You could ditch the auto oiler and run it premixed could eliminate the smoke issues and as long as you remember to put the oil in the fuel its good piece of mind. Have some fun learning some racecraft before you try to turn it into a rocketship.

[CM2005]

"...You could ditch the auto oiler and run it premixed ... Have some fun learning some racecraft before you try to turn it into a rocketship..."

Do you know how to do that? Yeah, I'm looking forward to getting out on track, MotoGP2's boring! The only other thing I'm going to change is putting some low-rise MX bars from my old CR on it, then It'll look like an 80's superbike.

[Buddha#81]

To remove the auto oiler not really.........But there will be a oil tank which will feed a pump (gear or vac) which will feed into the crankcase or carb all will need to be removed and blanked off. I dont know anything about small suzi two smokes but someone here will. Make sure you run a good quality 2 stroke oil suzuki never intended the GP to be a race bike and it will need all the help it can get. MX bars are a good idea more comfortable better leverage, tyres will be you best investment in handling. Photos please as developments continue. Ask questions and plenty of them someone will alway be there to help.

[Ivan]

if it the same as the AX the Auto Lube is behind a cover right by the front sprocket, I havent actualy removed myne just disconnected it and blocked the lines off seems to be ok like so long as you remember that theauto lube spot into the inlet portwhen you remove thecablefrom there you will want to block that off as the hole will be allowing more air in leaning the engine out. andyou dont want your engine wayyyyyyy to lean or else pistons like meeting the bore which is not good.


RG100!! owns one of these but the GP100 I tihnk?
Should be a good bike but like SPud said run it on a good fully synthetic oil less chance of seizing with good quality stuff compared to the budget 5 dollars for 80 litres cheap shit

[Blackflagged]

Anyone think,Buckets would/could handle , a Sub catagory on KB forums.
Like Minimotos,and Post Classic.What ya tink?As this is a long thead,to seach though for a beginners.

[Ivan]

Anyone think,Buckets would/could handle , a Sub catagory on KB forums.
Like Minimotos,and Post Classic.What ya tink?As this is a long thead,to seach though for a beginners.

thats a good idea

[Blackflagged]

Check this poll,if anyones interested. http://www.kiwibiker.co.nz/forums/showthread.php?t=46233

[CM2005]

if it the same as the AX the Auto Lube is behind a cover right by the front sprocket, I havent actualy removed myne just disconnected it and blocked the lines off seems to be ok like so long as you remember that theauto lube spot into the inlet portwhen you remove thecablefrom there you will want to block that off as the hole will be allowing more air in leaning the engine out. andyou dont want your engine wayyyyyyy to lean or else pistons like meeting the bore which is not good.


RG100!! owns one of these but the GP100 I tihnk?
Should be a good bike but like SPud said run it on a good fully synthetic oil less chance of seizing with good quality stuff compared to the budget 5 dollars for 80 litres cheap shit

Yeah, i've decided not to fuck with it for now, just ride!! I'm going to invest in some race 2t oil for it, clean the oil tank, change the g/box oil, and get some good tyres. :yes: Thanks for the help guys! I'll throw some pics on when i actually pick it up! april 3rd.. :rockon:

Wow Ivan, you got a comma AND a full stop in that post!! :dodge:

[Ivan]

Is this worth a green rep?

[Spyke]

hey was wondering what is the smallest size you can have your racing numbers on your bike (dimensions please). because i have just got a bucket to race at waipawa.

[Bert]

hey was wondering what is the smallest size you can have your racing numbers on your bike (dimensions please). because i have just got a bucket to race at waipawa.

Good for you W B R, i think that the national regs state that size has to be 6 inch, have a look see on the mnz web site. rules... white on black for 125 -open.

But it is buckets so ask the orginiser or pm team_cudby (check name) or ivan, RG100!!! they should know.

stay upright and enjoy.

Bert

[Bert]

Yeah, i've decided not to fuck with it for now, just ride!! I'm going to invest in some race 2t oil for it, clean the oil tank, change the g/box oil, and get some good tyres. :yes: Thanks for the help guys! I'll throw some pics on when i actually pick it up! april 3rd.. :rockon:

Wow Ivan, you got a comma AND a full stop in that post!! :dodge:

if you are going to keep it stock make sure you clean and set the oil feed correctly. they can be more problems than they are worth.
Personally I'd dissconnect or remove it and mix my own fuel, at lease you know that the engine will receive that correct amount of premix.

but that my two cents.

Good luck with the racing. you will have a ball.

B

[Spyke]

Good for you W B R, i think that the national regs state that size has to be 6 inch, have a look see on the mnz web site. rules... white on black for 125 -open.

But it is buckets so ask the orginiser or pm team_cudby (check name) or ivan, RG100!!! they should know.

stay upright and enjoy.

Bert
i did have a look on the mnz web site but i couldnt find it. i will ask one of them today.

thanks

[F5 Dave]

heehee well said skunk. how long has this thread been going. looking back over it mr Ivan has asked several question time and again.

can't wait to see the finished product. I think he has picked the brains of every bucketer in the country, so it should be a fast bike. . .

but he hasn’t LISTENED to any of them!



the stator doesnt alter the advance retard does it? It is the CDI box so if I convert my igntion to a tf100 or tf185 igntition and flywheel and run the CDi from KX125 it should be mint.. . .



. . . My mate polished the port as he wanted to and polished it and the head so well and the piston crown that they are a mirror finish. . .

[Ivan]

Yeah,

My bucket started up today,

And it is running in a Aprillia RS50 Chassis and rideable,
we got a few rides in today,
I got a couple and it feels quite good alot better than being in a dirty old ZZR250
I think the porting is not sufficent enough yet, but still goes,

[Sketchy_Racer]

when you say its not sufficient enough, you mean you've rooted a perfectly good engine?

Nice one Ivan :killingme

[Ivan]

no what i said is that it aint making enough power how can you root it when you havnty actually altered the shape of the port only cleaned it up?


It is pretty mean tho

[Buddha#81]

no what i said is that it aint making enough power how can you root it when you havnty actually altered the shape of the port only cleaned it up?


It is pretty mean tho

From previous posts that would be code talk for "awe fark I think I've farked up.......... again"

Ivan do yourself a favour and shut up get the thing going PROPERLY........ THEN tell us all about it.

[Skunk]

Ivan do yourself a favour and shut up get the thing going PROPERLY........ THEN tell us all about it.
Like I am... :shutup:

[CM2005]

if you are going to keep it stock make sure you clean and set the oil feed correctly. they can be more problems than they are worth.
Personally I'd dissconnect or remove it and mix my own fuel, at lease you know that the engine will receive that correct amount of premix.

but that my two cents.

Good luck with the racing. you will have a ball.

B

Workshop manual anybody? haha, i'm not too sure on how to do this! how about i post it to Ivan? he can fix it!

[Ivan]

whynot I do actually know what im doing and when I dont I get ym tutor to double check Im doing everything right and I think he would know what he is on about consideirng he is a fully qualified mechanic

[mud boy]

Ivan, when you put up bucket update it means racing to me you shounld put some thing aother than that and if you counld make it more intresting i mean i counld have cut all that in to two sentens!:yes: :lol:

[mud boy]

thank you for the update skunk
i will ask dad if we can go to it mmmmmmm.... i wonder how meany time i'll fall off this time, 2,3 lol:Punk:

[Ivan]

Ivan, when you put up bucket update it means racing to me you shounld put some thing aother than that and if you counld make it more intresting i mean i counld have cut all that in to two sentens!:yes: :lol:

If you dont like it dont read it:innocent:

[CM2005]

whynot I do actually know what im doing and when I dont I get ym tutor to double check Im doing everything right and I think he would know what he is on about consideirng he is a fully qualified mechanic

I just give you shit because everyone else does ;) haha all good mate!

[Ivan]

Oh I know I was also just replying, I didnt mean to sound so serious (mumbles FUCKEN BUNCH OF TOSSERS)

Man I noticed its ginga bashing every were

I get Ginga bashed onhere


And Dangerous gets Ginga bashed on NZSBF

[k14]

Oh I know I was also just replying, I didnt mean to sound so serious (mumbles FUCKEN BUNCH OF TOSSERS)

Man I noticed its ginga bashing every were

I get Ginga bashed onhere


And Dangerous gets Ginga bashed on NZSBF
roflmao, nah its just ivan bashing. But being a ginga you aren't doing yourself any favors.

[Ivan]

you are not cool kirk:shutup:

[k14]

you are not cool kirk:shutup:
yeah i am, ask my mum :lol: :rofl:

[CM2005]

K14, how did u get a 48 horse CB125t? has it had a re-power?

[Ivan]

Oh know this is how I started Be careful CM2005

[Sketchy_Racer]

whynot I do actually know what im doing and when I dont I get ym tutor to double check Im doing everything right and I think he would know what he is on about consideirng he is a fully qualified mechanic

Fully qualified doesn't mean that he's any good.

blind leading the blind anyone?

[mud boy]

one day Ivan just one day mora ha ha ha

[Ivan]

Fully qualified doesn't mean that he's any good.

blind leading the blind anyone?



Ummm at least he can tighten up a fly wheel nut.
Man he is a real good mechanic your just a egg

[Ivan]

one day Ivan just one day mora ha ha ha

What the fuck are you even talking about

[Bert]

Ummm at least he can tighten up a fly wheel nut.
Man he is a real good mechanic your just a egg

now thats a funny mistake to make...
I've done that one before. had my internal rotor come flying off mid race. poped right through the engine cover and fairings and off along the track. F5 dave might even recall that one (back in the dark ages of the mansfeild back track)

on the side. Any bucket people interested in a straight rolling RG50 / converted to 100. Frame with spare forks are rear shock, tank & 4 good tyres ? good condition thinking offers over 150. was going to save it but someone might want it to go racing on. put in a motor and go !! money going to a good cause - new front tyre for the winter series...

SOLD - TO A GOOD HOME

sorry ivan for stealing your tread.

[k14]

Is it running 17" rims?

[Bert]

Is it running 17" rims?

standard 17" front (teenieweeny 2.5 ?)
18" rear alittle bigger (2.5/2.75 i think.) someone will correct me I'm sure.
note no mods done to the rear swing arm or shock.

Happy to box it up and sent it - buyers expense.

[Ivan]

Hey all good Bert Id post it in the classifides tho,

anyone heard of any up coming meets?

[CM2005]

the bucket GP is on in AKL, 21-22 april. i think. haha, it'll be my first race ever!

[Ivan]

youl be sweet use your mind.

And aint the GP a national event?


Any Welly Guys going to enter the GP?

[CM2005]

I'm not sure, i PM'd the organiser, but nothing, so i'll get on the phone when i've picked my bike up from AKL on the 3rd, and find out as much as i can.. Do 125's run 18 inch tyres? what size?

[ajturbo]

youl be sweet use your mind.

And aint the GP a national event?


Any Welly Guys going to enter the GP?
you want a lift????

[Ivan]

well maybe I might will have to get my arse into gear and get this bike finsihed to make it will be my first test ride on it rather than a driveway hope it works out will let you know by end of next week AJ,


All I have to finish is the petrol tank now hoping I can use Aprilia tank, since the engine is smaller,
fix a puncture on a tubeless tire, which is gonna be a prick of a thing I think its leaking out the tire valve am trying to find a car pull through one that would work wonders other than my thin little one or run a tube in it,


Modify an exhaust system to match it and work out thats the hard bit getting the right exhaust to produce the right notes,


IS THERE SCRUTINEERING UP THERE???

If so I will fail:shutup:

[ajturbo]

scrutineering?? WTF is that???

hahahha.. yer and they are STRICKED!!

tyres have to be round
engines have to use fuel
you must have a seat.
may even need to take a mashall with ya...


( i think they do ..)

[CM2005]

they didn't last month! haha, AJ, do you know anymore bout the 'GP? Is it a 2 day meet?

[ajturbo]

they didn't last month! haha, AJ, do you know anymore bout the 'GP? Is it a 2 day meet?
hell man(?), i live in welly now, i have only been to one meet there last year for the 2hr, and ..... that is all i know!!!

i didn't even know there was the gp!!!

where would we get info on it???

and will it clash with the vic round ivan?

[Ivan]

scrutineering?? WTF is that???

hahahha.. yer and they are STRICKED!!

tyres have to be round
engines have to use fuel
you must have a seat.
may even need to take a mashall with ya...


( i think they do ..)

Haha well my backtire is flat so i have allready failed
Engine using fuel damn I love running it on rice and potatoe juice
I dont have a seat I have a RS125 Ductail but its a looker,

Marshell aint that what we take Luke for?

[CM2005]

hell man(?), i live in welly now, i have only been to one meet there last year for the 2hr, and ..... that is all i know!!!

i didn't even know there was the gp!!!

where would we get info on it???

and will it clash with the vic round ivan?

haha, I'm not sure on info, but when i get my bike i'll track down the AMCN, and find the bucket boss... or you could try PM'ing granma2.

[ajturbo]

hahaha.. well there IS that option.... but they imtimadate me.. they are both tooo fast.. :dodge:

[Ivan]

OK heres what my expansion chamber looks like what are your thoughts on it?

[xwhatsit]

OK heres what my expansion chamber looks like what are your thoughts on it?

Looks good. Looks like it'll do the trick -- somebody's kindly already expanded it for you.

[Skunk]

OK heres what my expansion chamber looks like what are your thoughts on it?
Looks like mine, but mines a different shape and size.

[Fooman]

OK heres what my expansion chamber looks like what are your thoughts on it?

If you're going to use that drawing, you might want to print it out on some fireproof paper. Normal printer paper (80-100 gms) will burn quickly from the exhaust gases...

You're welcome.

FM

[Ivan]

Well its just needing to be welded up, we made the header for it so it should be sweet

[Bert]

Well its just needing to be welded up, we made the header for it so it should be sweet

Cool Idea but....

WTF you can't just pull a drawing out book and make a chamber with out measuring all the port timing, head volumes, sellected RPM range, power curve type etc etc :gob: :gob:

those of you starting out trying to tune to two stroke:
Will need to read and understand the basics of a two stroke motor. you can't just bolt stuff on and expect power. it doesn't work like that.

there are plenty of web sites with tuning basic mainly aimed at kart motors. but the maths and physics apply to race bikes. do the homework before going to the effort to make stuff that looks cool, or you might find things are better left standard.
its not a chopper ??? is it ???

my two cents
Bert

[Sketchy_Racer]

Good points bert,

But i really do think you are wasting words.. as he's been told them time again, but still patently ignores them

[Ivan]

I dont I am going to modify this chamber to suit the engine,
Cut a section here and there and it will be sweet with the required maths,
Bert I agree with what you say and Speed Pro and thats why I ask ask before I try I am a person who asks numerous times to learn,
If you dont ask and try you dont learn

Nothing Ventured nothing gained my 2 cents

[Sketchy_Racer]

haha, thats a good theory ivan,

but when you ask, and you are given an answer, listen!!

[Bert]

I dont I am going to modify this chamber to suit the engine,
Cut a section here and there and it will be sweet with the required maths,
Bert I agree with what you say and Speed Pro and thats why I ask ask before I try I am a person who asks numerous times to learn,
If you dont ask and try you dont learn

Nothing Ventured nothing gained my 2 cents

Don't get me wrong. I'm not giving you a hard time, but i don't want people reading the thread and thinking that there is no understanding in the developement of a bucket motor. ?? (if that makes sence).

I'm just pointing out options for information for those people that are willing to spend the time learning about what is involved.

chin up and brain in gear. as you have taken things the wrong way again.
B

[Ivan]

Allgood Bert,
I havent taken anything wrong with what your saying:whocares: I listen to guys like you and Speedpro:yes: but It annoys me how Glen can comment and cant even do a flywheel nut up:sick:

Oh and I am joking dont get upset glen k?:done:


Don't get me wrong. I'm not giving you a hard time, but i don't want people reading the thread and thinking that there is no understanding in the developement of a bucket motor. ?? (if that makes sence).

I'm just pointing out options for information for those people that are willing to spend the time learning about what is involved.

chin up and brain in gear. as you have taken things the wrong way again.
B

[Bert]

Allgood Bert,
I havent taken anything wrong with what your saying:whocares: I listen to guys like you and Speedpro:yes: but It annoys me how Glen can comment and cant even do a flywheel nut up:sick:

Oh and I am joking dont get upset glen k?:done:

Sweet, but I wouldn't listen to me, when was the last time i finished a bucket race, - last one i can think of was on someone elses bike..... makes you think....

as for glen's nuts - well that can happen to the best of us.... :innocent:

get to the shed boy and start measuring I've got a sh!t load of bits for you. (info). I'll post them up in a couple of week once back from holiday.

roll on the winter series. I'm keen to see if i can go around the outside of you and your RS again, on my big 250 green bus.. :Punk:

[Ivan]

Cheers Bert,
Bikes not even at home its at my polytech

[speedpro]

Well its just needing to be welded up, we made the header for it so it should be sweet

So the header you have made has a spigot mount, is tapered along it's whole length, curved to fit the bike, and is perfectly smooth from one end to the other? That would be nice work.

I can't see on that pipe in the picture where you are going to take a little bit from here and there to make it work on your motor. All the curves and tapers would make that a very difficult task. Having tried that sort of thing I can assure you it'll be easier to do a good job if you just design and build from scratch.

[Ivan]

Yep the exhaust header is designed to curve and be a smooth flow the whole way,

I opened up the port by 1mm on the sides and on the top of the port, I guess if you dont try it you dont learn,
and I didnt go hard out I did it so if it works there is always room to make more improvement,
and before I ported I had a copy of the porting and cylinder scavenging chapter that I read, I also checked that the ring would not buldge into the port on compression also I chamfered the port off,


Like I said trial and error and what better bike to learn on than a bucket racer where I can buy a brand new barrel for 30 bucks from China

[Sketchy_Racer]

but It annoys me how Glen can comment and cant even do a flywheel nut up

Difference being, i don't claim to be a mechanic... unlike some.

have a good day

[CM2005]

yay, I've got my GP125, but no pics! New BT39 battlax's on it from cycletreads.

[Ivan]

Has anyone got a RGV250 or similar flat slide carb?
I am looking for one to fit to my AX100 as one carb works out to 125cc kind of if you get my drift would just need to alter jetting and manifold to get it to suit,

Cheers


Ivan

[Flyno]

ivan, did you tidy your bridge up wen ported at? this on the 125 a?

[Ivan]

Sorry Sam this is the AX engine I wont try porting my RS barrel ill leave that to someone who knows lots about it buckets is buckets you make mistakes and learn and have fun 125s is all about finishing well I dont want a shit engine,


It dont got a bridge in this thats why I had to check the ring wouldnt buldge into the port

[Ivan]

Well here she is heres some pics nearly ready for round one

[Buddha#81]

Well here she is heres some pics nearly ready for round one


Nearly ready my ass.:gob:

[Sketchy_Racer]

:lol:

hahahaha... you speak truthful words spud....

[CM2005]

round one 2008? my GP's going great,put MX bars, new grips and bar ends on today. pulled off all the road gear except tacho and speedo, pulled the inside outta the switchblocks. fun fun fun! it'll do 100km/h in 4th at 8'500, and about 130 at 8'500 in top(5)!

[Ivan]

Im serious pipe and put tank on tension chain up and ride the thing

You saw it glen. Nearly

[Sketchy_Racer]

closer than the last one...

Not by much

[Ivan]

Yeah its veryvery very closeI have the brakes apart at the momment cleaning them,

Cleaning the brake fluid off them,
and getting the dirt out the pads,


Not much to go

[Expert]

Good on you Ivan, soon be kicking the ass of all the unbelievers!
That'll wipe the smiles off their faces!
That looks like a shit hot bike, and with all the improvements it should be a class winning machine so there should be no excuse for not coming first!!

[Ivan]

Well theres one excuse but that has nothing to do with the engine. No it is not my riding either it is something I can not release until later on first has to be confirmed but I wont leak any details yet,


No it is not another bike either.


But if im not racing it I will allow someone like RG to ride it for me whilst I develop the engine,

[Ivan]

Well I have hit a stumbling block with an expansion chamber.

The 1994 RS125 Honda chamber wont fit in the frame properly If i set it up correctly it will drag on the ground under brakes and will drag on left hand corners.


SO I might have to make one from ground up which I am not keen on doing as I read the stuff on making one but I cant do the calcs to design it to suit my engine.


I may look at another MotoX chamber but make it to suit the engine and frame

[ajturbo]

so.. ivan you coming around saturdaynight?.. your boyfriend glen could be here...he needs a hug.....