Re: Rebuilding a 1956 Evinrude 7.5hp

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May 7, 2016 at 5:06 pm #36152
Mumbles
Participant

    Try placing an ad in the Free Classified section on these boards.

    Damage like that to the rods and crank journals is more than likely caused by running the motor on a wrong fuel/oil mix. These motors plus the 5.5 horse models demand using a 16:1 fuel mix because of the bearing design in them. Running them on modern 50:1 or any other mix besides the required 16:1 is just asking for trouble.