I need some help jetting my 4mill cub,just came back from pismo and wasn't to happy..I have a hesitation when I launch at the drags,almost as if it wants to die off for a second or two, but then it gets going pretty good.it also hesitates to shift gear just for that gear.after that it gets it through all gears...I have read a lot of info on jetting but don't have much experience,my question is what circuit may need attention if not all? What are u guys running for Ur jets on pwk39... My set up is 421 cub 21cc domes 4 mill crank pwk39 on vp110 at sea level..shears oof..current jetting 167mains and 67pilots not sure on the needle position ,bike idles good and rides fine except when i launch??
I know that when banshees are not tuned right the shifting can also b weird.
I beleave that's what's confusing me,would that b the mains since I'm at wot?even though my speed hasn't picked up?
Any info would b great , thanks in advance