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Old 08-30-2017, 10:00 AM
Moto7man Moto7man is offline
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Join Date: Aug 2011
Location: Murfreesboro,Tennessee
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Quote:
Originally Posted by gasgasxc View Post
There is no powervalve leak of any consequence in 92-96 .CR 250 s

While the engine is running 1 psi drop in 6 minutes is nothing.The engine is running at 1000 s of rotations per minute.

Also the engine tolerances will tighten up once the bike gets up to temperature.

The main consideration is for the valve assembly to be free of stiction.
Rubber o-rings, seals-goop whatever=drag.
Thanks for the post and update! Btw, the bike runs good but it is a very rich on the bottom with the airscrew at 2.5 turns out, I am going to try a 48 pilot. Right now I have a 175 main,52 pilot, R1369N needle, boyesen rad valve and FMF Gnarley,FMF spark arrestor/silencer. Does this sound like I am in the right ballpark?
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