Re: Correct fuel/oil ratio for mid 1950’s Johnson

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July 23, 2015 at 4:27 pm #20707
dshanks
Participant

    The 10th edition manual was one of the places I saw 24:1 which is why I was surprised when I ran across a 1963 service manual that said 16:1 for pre-1959 motors. I figured the AMOCI was the best place to get expert advise.

    To combat carbon accumulation I’m planning to mix SeaFoam in the fuel. Good idea? Bad idea? Idiotic?

    I just want to make sure I’m taking care of this thing so I can pass it onto my son some day. I know they’re not valuable in a monetary sense, but there’s something to be said for keeping up a motor that’s been used to take five generations of my family fishing. 🙂