VRoooooM

Quadrider10

Member
Dec 18, 2011
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New Jersey
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alright, question. i cant seem to figure it out. but when i first start my blaster, and its cold, so it hasent ran in like a day or so, i start it without any choke, since i never need to, and it always starts 1 kick. but the weird thing is, is that it revs really high for about a minute or so, than finally goes to normal idle when the engine is somewhat warm. its like the slide is stuck open, but its not. the only way to stop it is to put the choke on half for like 1 second, and its normal...... i leak tested it, and there were no leaks, so that leaves me to belive that eaither the pilot jet needs i size bigger, or exhaust is leaking. my air screw is about 1 turn out from full in. none of this is hindering preformance or anything. it still hits hard when i hit the power band and everything. so ehat can it be?
 
sounds like a lean pilot circuit. Try this: Turn yout slide/idle all the way down so your slide is at rock bottom. Then turn in yout air screw all the way. back it out say 1.4 turn. Start the bike, if it wont idle and the rpm's are too low, back out the air screw another 1/4 to 1/2 a turn in total and try again. do this until you can get it to idle nicely without using the slide adjustment to idle. if you find a happy setting below 1 turn out, then swap in a 35 pilot (granted you on a stock carb) or one size up on whichever carb you got.
 
lol yea, we got jackets funny how you'd think would be a normal thing for a 2-stroke :) but blaner is right you wanna go a turn and a half to 2 turns out from all the way in. Just play with it and I'm shure you'll be happy when your done.
 
When a motor is cold it requires a richer mix to run.

Starting without choke with a cold motor, makes it run lean, hence the high idle.

When to motor warms up , it requires less fuel in the mix, so the idle returns to normal.

It sounds like your idle setting is wrongly adjusted, did you set it while it was at operating temp?
 
When a motor is cold it requires a richer mix to run.

Starting without choke with a cold motor, makes it run lean, hence the high idle.

When to motor warms up , it requires less fuel in the mix, so the idle returns to normal.

It sounds like your idle setting is wrongly adjusted, did you set it while it was at operating temp?

yupppp, it idles fine when its warm....... and before, i got new pipe and stuff, i can start it fine with no choke and that wouldent happen.

so in other words, its fine an dont mess with it?