Thread: Compression
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Old 08-May-2014, 08:27
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milesaway milesaway is offline
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Mille
Bikes: 900ss 600ss xr400
 
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Join Date: May 2011
Quote:
Originally Posted by coppersaucepipe
What should the compression be on a good class B bike? I've got 9 bar on the front and a smidge over 7 on the rear on the engine in the bike. My spare measured at a smidge over 9 on the front and 9.5 on the rear.
mine gives over 9 on both- is it the cyl you were pouring neat petrol down that's low? check yr valves first but if it's the flooded one you probably washed off oil and damaged rings/bore- shame its not front as 10 times easier to pull off and investigate
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