Recent content by tm88260

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    Mercury 500 compression

    I have a 1977 Merc 500 have trouble with, compression was at 60 psi on all cyl, overhauled, rings, valves,bearings, seals and gaskets, still no power, compressin at 70 psi on all cyl, just about 1 hr on overhaul, will it run right on that compression
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    No power on 50 hp Mercury Outboard

    need help on 50 hp 1977 Mercury Outboard, would get on top of the water last year, checked compression, 60 psi on all, would come up to 110 with oil, replaced rings, bearings, seals, reed valves, started it up, it ran what I though was good out of the water, started it up a few days ago, took it...
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