Correct needle setting on mercury force 120 carb

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  • June 19, 2022 at 9:34 pm #261692
    Beno
    Participant

      My friend rebuilt this carburetor and we need to know what the correct needle setting is for the needle circled in red on top of the carb.. anyone know?  Like bottom then 3/4 turn out or something like that?

      I believe it is the pre mercury white motor .. Force 120 which would make it like a 1985 or something like that 1983?

       

      • This topic was modified 2 years, 11 months ago by Beno.
      June 20, 2022 at 5:13 pm #261732
      billw
      Participant

        US Member

        Should be 1 1/2 turns out from lightly seated. Per the book, allow engine to warm. Go to lowest reliable rpm. Turn each carb 1/8 of a turn in at a time, till engine pops, then back each one out 3/16. Then make sure it will accelerate afterwards.

        Long live American manufacturing!

        June 20, 2022 at 11:40 pm #261757
        Beno
        Participant

          Thanks. I’ll relay the info!

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