1977 25hp Johnson running issues

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  • July 10, 2021 at 5:09 pm #242391
    Evinrude 25
    Participant

      Hello,
      I got this Johnson converted from the remote model to tiller mode during last year of Covic-lock down.
      It does not run smooth as you could see in the video. Could you be able to tell the issue? This is the youtube video in of it.
      https://youtu.be/HDmika67V-E

      July 10, 2021 at 5:22 pm #242392
      Bob Wight
      Participant

        US Member

        Sounds like carburetor is running too lean. May also have an intermittent spark issue but try adjusting carb a little richer first.

        Bob

        1937 Champion D2C Deluxe Lite Twin
        1954 Johnson CD-11
        1955 Johnson QD-16
        1957 Evinrude Fastwin 18
        1958 Johnson QD-19
        1958 Johnson FD-12
        1959 Johnson QD-20

        “Every 20 minute job is only a broken bolt away from a 3-day project.”
        "Every time you remove a broken or seized bolt an angel gets his wings."

        July 10, 2021 at 5:29 pm #242393
        frankr
        Participant

          US MEMBER PAY BY CHECK

          Yep, lean sneezing.

          July 10, 2021 at 5:55 pm #242399
          fleetwin
          Participant

            US Member

            Yep, sounds like the lean spit these engines are famous for… Have you tried checking carb synchronization…The engine will never idle right if the throttle plate isn’t closed at idle or starts opening too early. Is it getting up to temperature? These engines won’t idle if running cold. Have you tried richening the idle mixture?

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