well il buy one when i get the thing running... i bought a cdi off ebay the old one didnt work at all so this one does and i cleaned the carb to perfection and had a person from a specialist look at it so now im assuming the timming is wrong but im gunna check the boot between the carb and engine for leaks... fun. what it does is go up to 1/4 rev then back down to idle and repeat with the throttle on full