Quote:
Originally Posted by DannoXYZ
Compression is perfectly fine. Bleed-valve is way up by gauge, entire volume of hose is considered part of combustion-chamber. Reading of 145psi is perfectly fine.
My race 250 bike has 5 hard seasons on it now. Two by previous owner and 3 by me. It got 145psi when I picked it up. Did 40-48 days at track each year. About 10-14 of those are races, which are actually easier on bike due to less time on track. Rest are full trackdays, 2.5-3hrs at WOT. After last season, I did tune-up for this year and tested compression. Exact same 145psi.
You'll find after re-ringing engine, readings will be pretty much close to same. Perhaps even lower before it's broken in.
|
interesting, I wonder why the service manual states such a higher value? 162 ∼ 246 psi
also did a wet test and got 175