Maintenance & Technical > KX500 Original

V-Force vs. Rad Valve

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hughes:
I would like more low to mid range punch. Which system is best V-Force or Rad Vavle. Does the reed block spacers really work and do they work  with these aftermarket reed blocks. 87 KX500.

Paul:
V-Force with low tension setting and a Moose reed spacer, get ready for the grunt-a-pot-a-most :lol:

Oh yeah, Rick says "get a flywheel weight" ;)

Rowdy-Yates:
Paul what about a 1991 KX125 That year was not known for its Low range? Probably works across the board. Minus the fly wheel weight not sure what that would do to a 125???

gowen:
Rowdy, are you looking for low-end? A Rad Valve is more what a 125 needs, as it helps boost the top-range. When I purchased my cr125 it had a V-Force and it ran great. Gave it a little low. But nothing to speak of, anyway, ended up robbing alot of top-end power. So, I replaced it with a rad valve. Couldn't be more happy. Much much more power in the top-range. Lost a little low, but it's a 125. I'd recommend a 250 if you are looking for a bike to grunt around on.

crazyryan:
I run a spacer, rad valve, lectron 44mm carb and K&N filter that has a angled boot. Covered with a outerwear of course.  Everything fits great with no mods needed. Hold On!

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