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Type: Posts; User: stepheneff

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  1. Re: 1976 merc 20 hp motor turns easily till I put in the spark plugs

    Motor does turn over. Can feel compression build and then release. Feels almost normal with top plug in place and bottom plug removed. Still hard though. With bottom plug installed and top plug...
  2. Re: 1976 merc 20 hp motor turns easily till I put in the spark plugs

    the plugs are L78V. I thought of that and the first thing I tried was screwing in the plugs only half way. No difference.
  3. Re: 1976 merc 20 hp motor turns easily till I put in the spark plugs

    A bigger boy is not an option. Few people could spin this fast enough to start it. The motor I'm using now is an Evinrude 15 hp 2 stroke. I have no trouble pulling that.
    Could there be too much...
  4. Re: 1976 merc 20 hp motor turns easily till I put in the spark plugs

    bought it not running. bottom was off and when I saw the burned electronics I figured that was why it was taken out of service. I was told that it hadn't been run for a while.
  5. Re: 1976 merc 20 hp motor turns easily till I put in the spark plugs

    plug wires are off.
  6. 1976 merc 20 hp motor turns easily till I put in the spark plugs

    Got a 1976 model 200, 20 hp not running. All the wiring was burned up so I replaced the switch module and fixed the trigger. Now I had spark. Figured that was the problem so I reassembled enough to...
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