parts I have fitted Stage6 variator Stage6 belt Stage6 pro rep exhaust (de-restricted) Stage6 adjustable clutch Stage6 clutch bell Standard 17.5 dellorto carb + air box Sets of stage 6 rollers weights Medium stage6 contra spring Set of polini clutch springs My problem is that the ped sets off at near full throttle creeping along very slowly then all of a sudden it shoots off all way to top speed. I have played around with different weights in variator and different strength clutch springs and still can't improve acceleration, I've tried 62 jet with brass restrictor in carb and a 68 with it removed but neither seem to make a difference. As for clutch springs I've tried soft ones and hard ones and tried a stage6 medium contra spring and standard but still no improvement?! I've also noticed that In the back of the clutch it seems to have weights that can be removed or added and I wondered if they maybe played a part in my problem.. Any advice would be much appreciated Thanks