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  1. K

    No Get-Up and Go on 77 merc 50

    I have a 1977 Merc 50 4 cyl. mounted to a 14 ft. fiberglass skiff. It was recently worked on to change exhaust plates and carbs de-gummed and supposedly timed. I have a sting-ray fin attached to minumize porpoising, so here is a couple problems I encountered upon running this motor on this boat...
  2. K

    1977 Mercury 50hp sludge in cylinder

    I was doing compression chk on motor and when I got to #4 cylinder I noticed that the plug was white and not discolored like the other 3.<br />I then probed inside with a tie wrap and it had a silverish gray looking sludge on it.<br />I chked each cylinder and only #4 had the stuff in it.<br...
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