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  1. #1

    Default Gas/Oil Ratio- Evinrude 15 HP

    I need to know the gas/oil ratio for an Evinrude 15 HP trolling motor and also a Star (Chrysler) 90HP. Just got both and no owners manual 8-( thanks for the help!

  2. #2
    Moderator JB's Avatar
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    Default Re: Gas/Oil Ratio- Evinrude 15 HP

    Aloha, Kahunadave. You need to know the year of both engines. 1980 or later, probably 50:1, earlier: sometimes 32:1 or even 16:1.Good luck.JB

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