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1994 Mercury Mariner 3 cylinder

Hawk1964

New member
I'm new to this (boating ) Just wondering if anyone can give the compression values for a 1994 Mercury Mariner 3 cylinder 50hp , I did the test last night and I received values of (from top to bottom ) 110,110 and 112 ? not if that's good or bad
Thanks for your help
 
FWIW, you will get better results posting in the Mercury/Mariner section for your outboard.

without knowing the details, I'd say your engine is in serviceable shape...the key factor is minimal variation between the three cylinders...
 
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