18HP saga continues. Can’t get past 14mph and 3,900 RPM.

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  • October 17, 2017 at 12:27 am #66299
    stephenspann27
    Participant
      quote Garry in Tampa:

      Do you have a 18203 model ? ? ? ❓

      It’s a hodgepodge at this point. The powerhead is a’61 johnson. The pan, down is a ’65 model evinrude.

      October 17, 2017 at 12:35 am #66302
      stephenspann27
      Participant
        quote BillW:

        I thought there was a pretty good size air intake hole right under the carb, just above the shift cable attachment bracket…?

        I see that now. Thanks for clearing that up. I’ll feel better now about closing up some of the gaps I have around the choke knob, mixture knob, etc.

        October 19, 2017 at 12:51 am #66378
        stephenspann27
        Participant

          My needle valve kit/bowl came in the mail today. It’s in A LOT better shape than the other bowl I tested last week. I didn’t realize how badly corroded the one I tested last week was until I saw a brand new one (NOS) today. There is quite a bit of aluminum missing (corroded away) in the high speed orifice area of the one I ran last week.

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