I i am trying to get more take off power out of this old Predator 90cc and was wondering if anybody has used one of these performance clutch kits on ebay they are made by IMPUSA. and sold by motoparts usa. Or if somebody could recommend a good clutch kit that is not to expensive. I would also like to upgrade exhaust if anybody has a good exhaust to recommend. Kind of new to CVT clutches but should I go up in weight on the rollers to get more take off speed. I have stock rollers in now but have upgraded springs

 

Remove weight for more stall. Remove 2 rollers and try it.