ESE's works engine tuner

[F5 Dave]

. . .
As an interesting aside (well to me anyway) the KTM50 sites recommend not using chain lube on the 415 chains with alloy sprockets they recomend silicon spray?

yeah, but its amazing the crap you hear in closed circles, several years ago in MX circles people were running stupidly low premix rates (more gas, oil doesn't make power etc) & you still hear this sort of thing. I'm sure Wob will have hear Karting lore practices that would make you shake your head. At the local track the Karts all seem to start their engines & rev the living crap out of them from cold for a couple of min & then stop them. Who knows why? Probably 'heat cycles'

Silicon spray. . . ok so yeah it won't attract dirt so much & the chain will look cleaner from the outside, but 415 is non o-ring & any water & dirt will enter in the bushes. Silicone won't have any real shear resistance. I'll take real chain lube thanks. in fact I do.

I use gearbox oil in gearboxes & fork oil in forks. I figure the very worst that can happen is that oil companies have decided ATF outperforms the best they can develop so they repackage it. But I don't think so.

If I had an auto engine I'd run ATF, . . .but then again I've heard frogs fluid works better so best start collecting frogs & worknig out how to press the most splooge out of them

[wobbly]

Here is some 4 stroke shit to annoy you guys - I cant easily post a pic on a PM.
For Rich, here is a pic of carb, I have plenty of different carbs - spigots and bellmouth intakes depending upon what length you want.
The FCRs work real well,should be able to jet them easily enough.
cheers
wob

[F5 Dave]

He's a witch! Burn him!

[Gigglebutton]

If I had an auto engine I'd run ATF, . . .but then again I've heard frogs fluid works better so best start collecting frogs & worknig out how to press the most splooge out of them

TeeZee the hot go for your g/box is frog splooge........

[F5 Dave]

On the way to work I've been listening to a mate's collection of music. Currently on is an old Silverchair albulm called Frog Stompin. The music is dreadful, but maybe they knew something we're only just picking up on. . .

[wobbly]

Sorry about the blasphemous post, back to the RGV100
Had to cut a small spigot dia to locate the ignition plate.
Then tap the existing cast hole bosses, no they aren't symmetrical,bastards.
Then spigot plate to locate the stator, then set base timing at around 15*, then tap plate for the stator.
Job done, CR125 DC rotor/stator fitted on the stock key,ready for the Ignitech.

[TZ350]

..... an old Silverchair albulm called Frog Stompin ......

Rompa Stompa Frog and his Friends are looking at you ........



Its frog splooge for me untill I have properly researched this g/box oil thing.

[TZ350]

Inlet Divider



I have put a curved divider in my inlet manifold



The idea is that (1) in a curved inlet like mine there tends to be a traffic jam on the outside wall as the inlet charge tries to turn the corner. Basically the divider (2) makes it into a two lane highway insted of a one lane bottle neck.

[Yow Ling]

Inlet Divider



I have put a curved divider in my inlet



The idea is that (Pic 1) in a curved inlet there tends to be a traffic jam on the outside wall as the inlet charge tries to turn the corner. Basically the divider (Pic 2) makes it into a two lane highway insted of a one lane bottle neck.

Why cant you have the disc valve just for air and an injector straight into a turbulent part of the crankcase?

[husaberg]

yeah, but its amazing the crap you hear in closed circles, several years ago in MX circles people were running stupidly low premix rates (more gas, oil doesn't make power etc) & you still hear this sort of thing. I'm sure Wob will have hear Karting lore practices that would make you shake your head. At the local track the Karts all seem to start their engines & rev the living crap out of them from cold for a couple of min & then stop them. Who knows why? Probably 'heat cycles'

Silicon spray. . . ok so yeah it won't attract dirt so much & the chain will look cleaner from the outside, but 415 is non o-ring & any water & dirt will enter in the bushes. Silicone won't have any real shear resistance. I'll take real chain lube thanks. in fact I do.

I use gearbox oil in gearboxes & fork oil in forks. I figure the very worst that can happen is that oil companies have decided ATF outperforms the best they can develop so they repackage it. But I don't think so.

If I had an auto engine I'd run ATF, . . .but then again I've heard frogs fluid works better so best start collecting frogs & working out how to press the most splooge out of them

How many babies do they have to squeeze to get a bottle of baby oil?

I wonder how WD40 or silicon would go in the clutch might cut down some friction
I too stick with what the oil companies and the manufacturers suggest for lubes, but I do use aerosol chainlube on my cables with a lube doffer thingy.
I do use silicon spray to DE-water the the chain after washing and then dry the chain by spinning the while on the race stand and then lube while hot and dry.
I also use Pledge for polishing the paint work and upholstery, smells nice too.
I use Handy Andy as a spoked wheel cleaner and alloy cleaner to get off crud and oily grime but wash of after use it works well on bare alloy. I use it neat with a small paint brush.
When I was in the Industry we used to use a product called called protectal?/ol. It was sold by Pacer for car grooming. It was put on with a spray paint air gun. It left a long lasting all over shine don't get it near brakes though. My father used to use similar air sprayer for his preferred crud remover which i think was Kerosene or similar.

Regarding the silicon spray on the chain Edit it turns out it is WD40
I tried to get on the site below.
It is a FAQ page on a profession tuner site. The tuner seems to have a pretty good record of success and is not some open forum.
For some reason it wont open for me there may be a problem with my computer or that page because the rest of the site is ok?
They are quite adamant for the ktm50 to use silicon and chain lube for the rest?
I have also used Chainsaw chain and Bar lube oil which is very tacky with a thin bottle nozzle applicator on bike chains with success when in a pinch if anything it seems to extend the incredibly short life of a hd 415 chain on a KTM 50. I wouldn't use this on a road bike though as it is messy.

http://www.thracing.com
http://http://www.thracing.com/FAQ.htm

[speedpro]

Job done, CR125 DC rotor/stator fitted on the stock key,ready for the Ignitech.

The rotor looks to be a bit too far onto the taper. You'll need to make sure you have a washer under the nut that has a large enough ID so the rotor is tightened onto the taper when the nut is done up.

[TZ350]

Why cant you have the disc valve just for air and an injector straight into a turbulent part of the crankcase?

Yes, it may be possible, I have been looking at a MicroSquirt for 2-strokes : http://www.microsquirt.info/indexright.htm

[husaberg]

Yes, it may be possible, I have been looking at a MicroSquirt for 2-strokes : http://www.microsquirt.info/indexright.htm

My understanding of the fuel injection stuff based on the 1990's bikes was direct injection was better for emissions and throttle body injection was the beast for power.
Honda spend a lot of time and money on the NSR500 which Ito rode and it was a missile but his best results were on the carburetor bike as it was techche to ride.
The same for Cagiva maybe technology has improved? There were also problems from memory with fueling on over run as the injection didn't seem to read vacuum signals that well?
The injection problems also doomed the Bimota V500.
I have also read up on the micro squirt it seems some wiz kid has even worked out a way to reprogram them with a iPod.There is also heaps of free information on them.

Although supplementary injection would be real easy to work and really tunable too without breaking the bank in R&D time.

There was an article in Cycle New i picked up over there - quite technical on the new KTM 250 FRR, and it went into some detail about the carbs, cranks and crankcases - apparently designed by 2 Catalan graduates - theyve ony just finished university. Its by Alan Cathcart (who is straight forward no nonsense tester, and interviewing Harold Bartol).

Carbs are ultra short magnesium type and they dont have powerjets at all (have some trick EFI system to monitor fuelling), made by Keihin and are CR flatslides. 38 - 39.5 dia.
Frame is made by Fabtech
Vertex pistons
Magnesium crank cases
Bore and Stroke: 54 x 54.5
270º crank that fires like a 90º crank, in a parallel set up to eliminate stagger on the carbs. (they are trying a 75º crank in testing for this year)
Barells have T Shaped exhaust ports (i thought this was out of fashion these days but hey !), with 5 transfer ports.

Can rev to 17,000 !!!! without seizing because of the EFI system. Injector come on above 14,000 - and get this crank life is 1240 miles between rebuilds !

Settings in carbs are really small Pilot Jets - which gets the bike off slow corners really well and EFI compensates. EFI is also linked to det counter, throttle position, onboard air pressure sensor and temperature sensor and into the z-con digital programmable ignition.

1 set of pipes for all tracks !

Power is "over" 111 HP with 62nm of torque at 12,750.

[Buckets4Me]

How many babies do they have to squeeze to get a bottle of baby oil?


Regarding the silicon spray on the chain

#1 not many they are messy buggers

#2 ask TZ what he uses for chain lube ( I belive it comes from the boating sector


and as for frog sploge i'd like to try this one

[husaberg]

#1 not many they are messy buggers

#2 ask TZ what he uses for chain lube ( I belive it comes from the boating sector

and as for frog sploge i'd like to try this one

Defiantly a two stroke NING NING
I shudder to think what TZ used for Chain lube, I really do. Marine based Hmmmm...
Maybe Cod Liver Oil? he does have a shinny coatseaweed, dolphin snot, orca semen, Whale blubber oil?
He doesn't heat them up on the stove in a pot of grease like my dad used to does he?
Edit Or is it WD40?

On the subject of chains one tip I picked up from god knows where was (when running a spilt link to facilitate quick gearing changes) I always used to put a bit of coloured RTV on the tail to help keep it there and to make it easy to find when your in a hurry. Fishy swims upstream as well. Rivet link is best on a Big HP bike or long races, but it is a neat trick.

Can anyone else get the FAQ page I posted earlier to load it flashes up for a second for me and then throws a error and conductivity message for me.I have managed to do a screen dump of it now.

It turns out it wasn't silicon, It was WD40 on the site Which is I think Fish oil and solvent? Edit Nah according to there site no fishes were harmed in the manufacture of WD40
From memory developed to protect ammo cases from rust or so the legend goes. Edit No it was for Rockets