Mercury force 85hp 1988

by Chris
(Cortland, Ohio USA)

I did a compression test on the motor and got 90, 92, and 90 on the cylinders. Does that sound like a good compression? Also I have trouble with cooling water not flowing properly. Any suggestions would be greatly appreciated.

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Aug 19, 2021
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Low compression
by: Anonymous

That’s way too low and shouldn’t even run. Try another tester.

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