problem with the s9

[bigtyme]

took the s9 out for a lil ride today - when accelerating it feels like the bike is jerking or surging - the motor is fine - feels like the belt is slipping - should i look to the clutch or the cvt - i checked the belt it appears fine - can see in the cover where the belt has been hitting the cover - where should i look -
Going to do some mods also so where should i start

[Hillbillyscooter]

I dont know about the jerking part. I have done a few mods to mine, I would start with the unrestricted boss and go from there what I have learned is that if you put a pipe and 70cc piston kit on you need to make sure you rejet the carb. That is the probelm I am having right now. I have to get a jet kit cause it is running lean.