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1981 GS550 Dyna S Help

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    1981 GS550 Dyna S Help

    How’s it going y’all? I bought a GS550 project recently that is an absolute basket case since my wife is on deployment and I need something to keep me busy. I don’t think the frame and the engine are of the same model. I bought a Dyna S and am trying to figure out if I’ll need to get a mechanical advance from a different GS or if I have one? Im a helicopter mechanic by trade so I’m learning as I go on motorcycles. I’ve got the signal generator so I assume it’s electric advance but how do I know the difference? Seems stupid but listen, I gotta learn somehow. Thanks!
    Because in the end, you won’t remember the time spent you spend working in the office or mowing the lawn. Climb that goddamn mountain.

    -Jack Kerouac


    1981 GS550 Cafe Racer Project
    (Hopefully from a basket case to beautiful bike!)

    #2
    Use the existing mechanical advance.
    Ed

    To measure is to know.

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    Comment


      #3
      Originally posted by Nessism View Post
      Use the existing mechanical advance.
      So Ed, what exactly does an electric advance look like? I assumed the one on the bike was mechanical but the Dyna instructions say some models after 1980 may have electrical advances?
      Last edited by SebbyRuiz; 04-18-2023, 11:08 PM.
      Because in the end, you won’t remember the time spent you spend working in the office or mowing the lawn. Climb that goddamn mountain.

      -Jack Kerouac


      1981 GS550 Cafe Racer Project
      (Hopefully from a basket case to beautiful bike!)

      Comment


        #4
        The centrifugal advancers can be moved on the crank and advance with RPM.
        Where it's electrical advance, that is built into the ignition box - electronically. And the trigger piece on the crank end is fixed in position

        Comment


          #5
          Originally posted by GregT View Post
          The centrifugal advancers can be moved on the crank and advance with RPM.
          Where it's electrical advance, that is built into the ignition box - electronically. And the trigger piece on the crank end is fixed in position
          huh that’s pretty interesting! Thanks!
          Because in the end, you won’t remember the time spent you spend working in the office or mowing the lawn. Climb that goddamn mountain.

          -Jack Kerouac


          1981 GS550 Cafe Racer Project
          (Hopefully from a basket case to beautiful bike!)

          Comment

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