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    1985 Mercury 75 hp no spark

    no spark at all on 85 merc. Good compression on all 4 cylinders. Any idea what the issue could be?
  2. S

    1985 Mercury 75 HP

    I am troubleshooting an ignition problem on a 1985 Mercury 75 HP. Engine has no spark at all. Good compression on all 4 cylinders, no fuel issues. Engine was running, then died and has had no spark since. Any ideas on what the issue could be?
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