Johnson K50 configurations

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  • December 27, 2023 at 2:34 pm #283515
    GUY SCHMIDT
    Participant

      US Member

      First off, I want to wish everyone a Happy New Year and Thank for your help in 2023. This new year brings me starting work on my two K50’s.

      I’m confused about what cylinder block and lower unit they should have. One has the spark plugs out back and one has them out the side. I have seen

      pictures both ways. Was there a switch somewhere from 1930 through 32? Also I have two different lower units. One has the big nut out front above the skeg and the other is

      swept back with no nut. Any ideas. I didn’t attach any pictures, I don’t know how to get the file size down on my camera to enable an upload.

      December 27, 2023 at 2:41 pm #283516
      Tom
      Participant

        US Member

        If I had to guess, you have a standard K-50 motor and a KR racing motor.  The KR had the plugs out the back with a removable cylinder head and a lower unit without the bearing adjuster slapped on the front.  Photos would help confirm.

        Tom

        December 27, 2023 at 3:31 pm #283517
        GUY SCHMIDT
        Participant

          US Member

          Thanks, I’ll check to see if I have a removable head.

          December 27, 2023 at 6:44 pm #283519
          GUY SCHMIDT
          Participant

            US Member

            OK, went out to the shed and took a close look. No removable head. One piece, just like the other motor. This one has no serial # though.

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