1960 Johnson 5.5

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  • August 1, 2015 at 2:17 am #2164
    jay
    Participant

      US Member

      Hi all,

      I pulled grandpa’s old fishing motor out and tried to run it again. With all of your help in the past I managed to get the old girl running again last summer, but never had any adequate boat time to tune it in (a lack of a rowboat was a problem). Well I have a nice 14′ rowboat now and took the motor out today to try it out.

      The motor starts and idles well, but when I put it in gear and give it the gas it dies out. It will idle fine below the START mark on the throttle, had it running at a nice low idle and all was well. But if I turn the throttle up past start it sort of bogs down and dies. It will run a bit above START with the choke pulled out, but it was not consistent.

      My assumption is the high mix needle is badly set? I thought the setting was 3/4 of a turn out to start with? Any suggestions on where I should go with this? I have another motor that wasn’t even kicking but I will start a seperate thread for that. Thanks for the advice.

      Jay

      August 1, 2015 at 3:39 am #21360
      Casey Lynn
      Participant

        US Member

        That setting for the HS needle is a "Rule of thumb" for lack of a better word.
        Richen it and see what happens!
        You may also want to richen the low speed needle a bit as well.
        Once you run some fuel through the circuits you may be able to re-adjust as necessary.
        Hopefully you are running a bare minimum of 24:1 mix.

        August 1, 2015 at 11:01 am #21365
        frankr
        Participant

          US MEMBER PAY BY CHECK

          Most carburetor problems—are not. You don’t say what you have done to it so far, but have you checked the ignition? Have the old coils been replaced yet?

          August 1, 2015 at 12:15 pm #21371
          jay
          Participant

            US Member

            Thanks guys –

            Frank – I had the carb off and soaked in carb cleaner and rebuilt it sometime over a year ago, then it got tank tested, but no boat test. I may have done a few other small things, but I dont remember what and I had documented it here, but thats gone now.

            I’m pretty sure the coils have been replaced in the past, but I will pull the flywheel and check. I can make sure the points are set OK when I’m in there. I’m also going to replace the bulb/line as it seems a bit suspect as well, though I would think a problem with the gastank line would show up shortly after you tried to speed up, rather than right away.

            Thanks again guys. I’ll keep you posted.

            August 1, 2015 at 1:19 pm #21374
            fleetwin
            Participant

              US Member

              Hopefully you drained the carb completely after you ran it last year, it doesn’t take long for fuel to gum up and ruin a rebuild job.

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