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    Need help with intermittent miss.

    I have a new to me 1980 115hp Evinrude, my 1st outboard. 90psi comp. on all 4, new plugs and wires,carbs rebuilt. Starts easy cold and idles on its own after 15secs. My issue is an intermittent miss that can be seen on all cylinders with a timing light, appears to happen at any rpm and either...
  2. H

    Lower Unit Gear Oil ???

    Can modern 75w140 synthetic gear oil be used in my 1980 Evinrude 115hp Lower unit? I ask this because I happen to have about 8 qts of this gear oil.
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