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    Low compression 65-75 psi on all 3 cylinders.

    I have a Mariner/Mercury 3 cylinder, 90hp, 2 stroke engine (clamshell cover) and it has low compression ranging from 65 psi to 75 psi on all three cylinders. The engine starts up easy and when it runs it seems to run quite good except for one cylinder, and that comes on at higher revs and cuts...
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    What compression for my 1991, 3cylinder, 90hp Mariner/Mercury??

    I have a 1991, 3 cylinder, 90hp Mariner engine, with the clam shell cover. I have recently noticed some fuel/oil mix leaking from the top of the crank case, it seems to be coming from under the fly wheel somewhere, I havnt taken the fly wheel off yet. It is only a small amount of fuel/oil and...
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    Only a click when the key is turned

    I have a 1991 3 cylinder 90hp mariner engine, I tried to start it for the first time this year when I turned the key the engine turned over as usuall, it turned over a few times, it coughed like it was about to start, and then nothing. Now when I turn the key all I hear is a click, Im guessing...
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    blown johnson fuse

    I have a 1973 50 hp johnson with electric start. Its fitted with a 10 amp fuse that keeps blowing.Is it the right size fuse ?
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