Reply To: Evinrude 1956 7.5 powerhead

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January 30, 2021 at 9:29 pm #229136
David Stanton
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    Run a compression test first if you haven’t already. If compression is low, check the head gasket. Like Don said, they seldom need rebuilding. If it’s not running good, most of the time it’s carb or ignition problems….or…you can have a brand new spark plug that’s bad.

    Now if someone though they could mix gas/oil 100 to 1 because it said that on the can of oil, then you may have a parts motor.
    Dave