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  1. W

    1983 merc 40 hp 2 cyl

    what should the compression be , mine is 130 on both cyl, my problem is with plugs in won't turn over, with plugs out turns over, check carb ,float it is ok, check fuel pump,:( it is ok,,, what would be the problem why it won't turn over with plugs in,, and the starter is ok,,, how do these...
  2. W

    40 hp merc 2 cyl

    will scored cyl's cause hi compression
  3. W

    82 40 hp merc 2 cyl

    last year my boy used the boat and the engine quit, it has a pull rope to start it if the battery runs down,but to hard to pull, I took out the plugs and you can turn it over by hand and use the pull rope, but when you install the plugs you can't pull it with a pull rope, like it has to much...
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