powroll vented valve cap?

[250exriderjamie]

Has anyone got this for their 250EX or just any quad? if you did can you send a pic of it and tell me how it worked and if its worth the money?
~Slone

[White_Knuckles]

They show a pic on their website. The claim is it will relieve pressure at high RPM. High RPM is greeted by the rev-limiter so I doubt you could "feel" much difference before the limiter kicks in. It routes a clear hose from the cap up under the tank. The hose will load up with oil vapor. The stock machine has a very efficient negative pressure blow-by system coming from inside your airbox to the crankcase.