High-G FJR Junkie!
Join Date: Jan 2013
Location: Millgrove, ON, CA
Compression always goes up warm and wet. Didn't say the readings before and after... doesn't mean the rings were bad, coulda been normal. Is this a high miler engine? Has anyone heard of an FJR that "wore out it's piston rings" or had stuck rings... especially an oil ring.
Valve seals on the other hand have little to nothing to do with compression. Some may remember '04-'05's had a valve guide problem which prematurely wore out valve seals.
Much more data required to nail this down. Pics of the opened up engine would help too. Now that he's got it apart he can tell us if he has stuck rings.
Keep yer stick on the ice....
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