well I have a factory 25 mph garelli ssxl I recently bought and would like to make it alittle faster. I've set the timing and rebuilt the carb. So the motor runs great just not as fast. I bought a aftermarket cone filter and it will idle with it but thats it. I tried up jetting it to a 53 then a 55 but it just stalls if you give it any throttle.
What can I do to hit 35 or close without a 70cc kit. Id like to get more of a feel for the bike.