Need help wiring in new bar controls

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  • DrImodium
    • Jan 2026

    #1

    Need help wiring in new bar controls

    Now that my bike is mechanically running alright, Im moving on to the little details. One project that has recently moved up the list is wiring new bar controls that I got from MikesXS.

    LS control:
    Fits: 1977-84 North American Model XS650's.



    RS control:
    Fits: 1976-78 North American Models and 1976-84 European model XS650's



    My stock controls have become brittle and work 50/50, so now I have the task of wiring these XS650 controls to my 80 GS1000E. I started a thread a few months ago but I didnt have the correct wiring diagram for the XS switches.

    XS650 diagram


    GS1000 Wiring Diagram



    Some of you have electrical know how; this is something that Im lacking right now. Ive tried drawing out the diagrams on printer paper using colors and everything to break it down function by function for each control so I could figure out the electrical path but Ive been trying to figure this out for the better part of 1.5hrs and the only wire I have connected is for the horn. PLEASE HELP
  • DrImodium

    #2
    For the XS harness, this is what my research has uncovered:

    Dk green- Headlight hi beam
    Lt green- Right turn signal
    Yellow- Headlight low beam
    Yellow/red- To turn signal canceler
    Yellow/Black- reserve lighting unit(?)
    Pink- Horn
    Blue/Green- reserve lighting unit
    Blue/yellow -12v power for headlight switch
    Brown- Left turn signal
    Brown/white- 12v power
    Black- Ground


    For the GS harness, this is what I have:

    Lt Blue- To turn signal relay
    Yellow- Hedlight High beam
    Yellow/white- Power to RS handle bar switch
    White- Headlight low beam
    Orange/Red- 12v Power
    Black- Left turn signal
    Black/White- Ground
    Green- Horn
    Lt Green- Right turn signal
    Lt Green/Black- To turn signal control unit.
    Brown/Yellow-Canceling switch

    Can you all double check I have the GS wires correct?
    Last edited by Guest; 03-25-2011, 01:06 PM.

    Comment

    • Matchless

      #3
      I would open the new switch and solder the old and proper colour wire for the GS into the switch and at the same time also reusing the multiplug.

      Just remember that the flasher cancelling switch works differently, but you most likely know that, and the self cancelling part will not work.

      Comment

      • Nessism
        Forum LongTimer
        GSResource Superstar
        Past Site Supporter
        Super Site Supporter
        • Mar 2006
        • 35787
        • Torrance, CA

        #4
        Originally posted by Matchless

        Just remember that the flasher cancelling switch works differently, but you most likely know that, and the self cancelling part will not work.
        Yes this. Suzuki's self-cancel switch has unique features that your new switch won't replicate.
        Ed

        To measure is to know.

        Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

        Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

        Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

        KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

        Comment

        • posplayr
          Forum LongTimer
          GSResource Superstar
          Past Site Supporter
          • Dec 2007
          • 23673
          • Tucson Az

          #5
          I remember going through this exact conversion here about a year ago. I'm sure you can find it with a search


          did you forget about this thread?

          Last edited by posplayr; 03-26-2011, 09:35 AM.

          Comment

          • Matchless

            #6
            Sorry did not reply to your question.
            Use a small table:
            Write down all the colours of the wires on the Suzuki switch underneath each other. Now go to the schematic and identify those wires with a name and number and write that next to the wire colours on your table
            Do another table for the Yamaha switch.

            Now marry those tables i.e.

            Suzuki Yamaha
            Black/White = Ground Black = Ground

            Once you have both done you may doubt one or two wires, then post the table and we will try and help you with those. It does take a bit of work even for someone who has done it many times before.

            Edit: Jim beat me to it, posted while I was typing.
            Last edited by Guest; 03-26-2011, 09:43 AM.

            Comment

            • Nessism
              Forum LongTimer
              GSResource Superstar
              Past Site Supporter
              Super Site Supporter
              • Mar 2006
              • 35787
              • Torrance, CA

              #7
              Originally posted by posplayr
              I remember going through this exact conversion here about a year ago. I'm sure you can find it with a search


              did you forget about this thread?

              http://www.thegsresources.com/_forum...XS#post1235751
              Lots of good info in that other thread. Imagine that...Search Feature turns up info.

              Just to clarify...the self cancel switch has a feature such that when the turn signal thumb switch is pressed there is a momentary power signal sent to the TSCU. The switch is spring loaded and this signal is only sent while holding the thumb switch against the spring. These aftermarket switches won't function in the same way, thus no self cancel if that is important to you. The second generation self cancel turn signals are more forgiving to system faults than the first so this is no worry in terms of having functional turn signals. In fact, you don't even need the TSCU installed to have functional manual signals.
              Ed

              To measure is to know.

              Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

              Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

              Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

              KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

              Comment

              • posplayr
                Forum LongTimer
                GSResource Superstar
                Past Site Supporter
                • Dec 2007
                • 23673
                • Tucson Az

                #8
                Originally posted by Nessism
                Lots of good info in that other thread. Imagine that...Search Feature turns up info.

                Just to clarify...the self cancel switch has a feature such that when the turn signal thumb switch is pressed there is a momentary power signal sent to the TSCU. The switch is spring loaded and this signal is only sent while holding the thumb switch against the spring. These aftermarket switches won't function in the same way, thus no self cancel if that is important to you. The second generation self cancel turn signals are more forgiving to system faults than the first so this is no worry in terms of having functional turn signals. In fact, you don't even need the TSCU installed to have functional manual signals.

                Imagine that, it is the same OP

                Comment

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