I have a stage 3 Predator 212cc Billet rod and flywheel with 22mm Mukuni and a couple weeks ago my wife's nephew wheelied it over. I believe that the stock Rupp jackshaft sprocket is a 10 tooth 41 pitch. Would installing a bigger 12T or 14T jackshaft sprocket soften the acceleration off the start? Being that the original engine is a Tecumseh HS40 which the gearing was originally set for. My built-up Predator 212cc is about 3 times more powerful than a stock HS40. Despite telling people to take of easy and not to twist the throttle too much it is apparently un-ridable by novices as seen in an earlier posting of the damages. Plus as an added benefit would this increase top speed a bit. Although it is plenty fast over 50mph right now.