The F9 Project episode 3 Engine modifications
In this episode we take a look at engine modifications to the Kawasaki F9 Big Horn. Visit these pages to get an idea of some of the specs used to modify this engine. This video will talke about porting, improving clutch action, piston and rings, cutting the rotary valve, port matching and a whole host of other engine modifications for better performance. Kawasaki F9 Speed Secrets and Kawasaki F5 Speed Kit manual Don't think all these tips are just for the Big Horn. All of these tips can be applied to just about any engine in some way or another.