Total Motorcycle Community Forums

i have one more question, if i am going to get 5 sizes up what kind would i have to order because as understand there are different "models" of main jets? thanks a lot

also do i have to re-jet or is there some sort of air mixture screw i could use to richen it up?

how many sizes up in jetting would i have to go? any how bad is it for my engine? btw the idle is a little touchy with the straights on it, is that what you mean about it being lean?

ok here is the deal i just got the yamaha and one of the mufflers fell off when i was riding and it had a short straight pipe after the muffler fell off, so i thought the sound was really good with the straight pipe so i had the muffler shop weld the rest of a straight pipe on it to both sides. My q...

ok so here is the deal-- with everyones help on the idle problem it had i fixed it, now more problems. ok to start off, it starts fine if i put the choke on, but if i leave the choke on any amount of time after it starts it just revs up really high (is that normal for 2 strokes when using a choke?) ...