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rich lean setting

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  • rich lean setting

    I have a 1975 evinrude 9.9hp. how many turns from lighty closed to properly set the rich/lean setting? it only has the one setting knob.
    any help would be great.

  • #2
    Re: rich lean setting

    I can't remember but I'll check my book tomorrow and let you know if no one jumps in with the correct answer. Rick.


    • #3
      Re: rich lean setting

      start at about 1.5 turns. start the motor and let it warm up. at idle turn the knob in until it begins to stumble or cough. then back it out until it just smooths out.


      • #4
        Re: rich lean setting

        read carb adjustments in the TOP SECRET FILE > http://forums.iboats.com/showthread.php?t=299680
        TEBOW Country

        Please, NO PM's (Private Messages) regarding boat/engine problems. they will not be answered.
        That is what these forums are for. Post your questions, in the appropriate Forum.


        • #5
          Re: rich lean setting

          Thanks for the advise.
          Fore fisher


          • #6
            Sign up today
            Re: rich lean setting

            Here is a link that is a must read for 9.9 and 15 OMC owners. Enjoy. Rick.