Home Forum Ask A Member Johnson PO-15 throttle cable

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  • #5863
    Buccaneer
    Participant

      US Member

      I’m trying to install a throttle cable on the PO-15.
      I don’t have the original cable.
      The parts manual calls their cable a "Bowden" cable.
      An Internet search of the same shows modern looking
      cables, with plastic sheaths, etc.
      From photos of other peoples PO’s, it looks they they
      all have the old fashion lawn mower throttle cable,
      and that’s what I’m trying to use.

      My problem is securing the cable in the bracket
      at the point shown in the photo with the red arrow.
      The cable is much smaller than the hole it’s in.
      I presume I need to find or make a bushing that
      screws on, solders on, or is epoxied on to the cable.
      Evidently a bolt would go thru the horizontal hole
      to hole the bushing / cable in place.

      Was there originally a separate bushing, or was the
      cable big enough to fit in the hole tight?
      Ideas welcomed.
      Thanks!

      PS- What was the original routing and lenght of the cable?
      In looking at my photo, I’m wondering if it’s
      even long enough when the tiller handle is raised!


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      #48886
      george-emmanuel
      Participant

        US Member

        There was a stainless, for lack of a better word "Twisted" bowden cable used on those with the large hole. The cable had solid ends pressed onto the cable. I have a couple of NOS ones but I find them very stiff. Use what you have and it will work well. You could probably use a short piece of copper tubing over your cable to fill the gap. You’d have to somehow compress the tubing over the cable, but there is not a lot of stress on that throttle cable. You might have to file the copper tubing a bit for a good fit, but it will work.

        You do have the cable routed correctly in the picture.

        George

        #48900
        Buccaneer
        Participant

          US Member

          George, thanks for your reply. A cable as you described came with the
          carburetor (carb was missing when I purchased the PO) but I
          assumed it was incorrect as all the photos of PO’s I’ve seen had
          the lawn mower type cables.
          Your correct in that the original type cable is very stiff, and I
          couldn’t get the inner cable to "push" through the sheath,
          but would pull stiffly. For some reason, one end of the original
          cable had been ground with a taper.
          I seem to remember working on a small engine that had the lawn mower
          type cable, and it had a bushing on the end that more or less screwed
          onto the spiral wound cable sheath.
          Not sure if I can find such a critter, so will make a bushing and
          secure it somehow to the cable.
          Thanks!

          Prepare to be boarded!

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