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  1. #1

    Default fuel mix ratio on 1975 yamaha 3.5hp two stroke outboard?

    Hi,
    Please advise on the correct fuel mix ratio on my old yamaha 2 stroke outboard.

    3.5hp, year 1975.

    Many thanks,

    Andy.

  2. #2
    Join Date
    Nov 2005
    Location
    Chesapeake, Va, US
    Posts
    1,111

    Default Re: fuel mix ratio on 1975 yamaha 3.5hp two stroke outboard?

    50:1 using oil rated TCW-3
    Bill H PTC USN Ret
    A manual is a cheap investment.

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