Scott-Atwater ’53 7.5HP – initial carb settings

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  • jpatti75

    US Member - 1 Year (includes $3 online payment fee)
    Replies: 296
    Topics: 49
    #7011

    What are the initial carb settings for the 1953 Scott-Atwater 7.5HP with the Tillotson MD64A carburetor?

    Thanks,
    JP


    jeff-register

    US Member - 2 Years
    Replies: 1564
    Topics: 54
    #57715

    Jason,
    I would try 1 turn out on the hi speed jet & get it tuned up then try turning the lo speed the opposite way for a good idle, Same as Firestone’s or close to it.’ Haven’t forgot your motor, been a little under the weather.
    Jeff


    hmai


    Replies: 14
    Topics: 15
    #57718

    Not sure of the initial setting, but the key to those is u can not fine tune in a barrel. My bail a matic had to be on a boat under load.


    jeff-register

    US Member - 2 Years
    Replies: 1564
    Topics: 54
    #57723

    Jason,
    My, like any other Scott sounds like it’s going to come apart from the high revving fully jewelled bearings, bu t will fly across the water if you keep gearoil in it. A member machined my gearcase to hold two D-shaft seals. Helped a bunch.

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