Powervalves

[kx500 kid]

my kx500 has a rev pipe fitted for top end power i use it for super moto the speed is awesome i need it to keep up with big 4 strokes can i adjust the powervalve to open later to give me back some bottom end i have a lite flywheel weight which helps
cheers

 

[nephron]

i need it to keep up with big 4 strokes

Either jet it properly, or learn how to ride. ;)

 

[DEANSFASTWAY]

Maybe you could play with power valve governor springs. Maybe a stiffer weight spring would change actuation. OR limiting the amount of balls in the governor or ramp angles etc . OR changoing the actuation piont of the rack & pinion assy on the linkage. Alot of tuners used to change around different years of governors on KX125s for different power spreads . Im no expert here but just a thought. GOOD lUCK

 

[kx500 kid]

Thanks mate thats given me something to think about.I have done some more research and by adding some shims to preload the spring .010" at a time you can delay the opening point which will alter power delivery.

 

[DEANSFASTWAY]

kid check out some of the team green hop up reports on all the bikes esp the older 125s, they were always changinging balls springs and ramps . WWW. TEAN GREENNEWS.COM or something like that. Good Luck.