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-   -   SV730 low compression on 1 cyl. (https://www.onlycubcadets.net/forum/showthread.php?t=27988)

johnh 10-19-2013 11:05 PM

SV730 low compression on 1 cyl.
 
have a SV730 horizontal stroke ohv twin with 150psi on one cylinder and 110 on the other. could this be a valve seat problem? 600 hours on engine.

dvogtvpe 10-19-2013 11:26 PM

it could be, but it could be weak rings or a leaking head gasket. you could put a leak down tester on it or use a rubber tip blow gun to put some air psi into the cyl. see or listen to where it leaks out.


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