black sunshine Posted September 12, 2006 Report Share Posted September 12, 2006 Going to check compression just to see where its at, any comments on what is acceptable and when to rebuild? Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted September 12, 2006 Report Share Posted September 12, 2006 Going to check compression just to see where its at, any comments on what is acceptable and when to rebuild? Totally stock bike, nothing at all done to it? Elevation? Temp? Quote Link to comment Share on other sites More sharing options...
black sunshine Posted September 12, 2006 Author Report Share Posted September 12, 2006 Totally stock bike, nothing at all done to it? Elevation? Temp? Stock motor, pipes, silencers, 340 mains, but nothing that should effect the compression. Elevation is about 600' and its about 55F. Quote Link to comment Share on other sites More sharing options...
chase@miamiatv.com Posted September 12, 2006 Report Share Posted September 12, 2006 around 120 Quote Link to comment Share on other sites More sharing options...
bigboybanshee Posted September 12, 2006 Report Share Posted September 12, 2006 around 120 like chase said, but if there is more than 10 psi difference between the 2 cylinders, it's time for a rebuild/new rings :beer: Quote Link to comment Share on other sites More sharing options...
dajogejr Posted September 12, 2006 Report Share Posted September 12, 2006 Near sea level, as you're at...brand new it's between 125 to 130ish... 10PSI between the two...or, 10% of each other is a general rule. Once you start dipping near the 100 or 105PSI mark, you're gonna wanna freshen up the top end. Mine was at 110 beginning of last year...and I beat the tar out of mine. Near the end of the year, it wanted a few more kicks to get it started ( one tell tale sign of being worn)...but ripped once it got going.... Quote Link to comment Share on other sites More sharing options...
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