Relay Controlled Replacement For TSCU '78 GS1000

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  • Eli69
    Forum Sage
    Past Site Supporter
    • Aug 2005
    • 4870
    • Wyoming County, New York

    #1

    Relay Controlled Replacement For TSCU '78 GS1000

    the turn signal control on my 2nd skunk was bad (pretty standard for these bikes i think). i could have just replaced the left handle bar control with one of these:







    but i wanted to come up with something that could be plugged in to the TSCU plugs and work with relays. this is the very sloppy schematic i drew when i finally came up with a plan that i thought might work:






    2 12v dpdt relays and one spdt relay. the dpdt's i bought from amazon. https://www.amazon.com/dp/B00REFBL7A/ref=cfb_at_prodpg
    the spdt i took out of a junk car. the whole thing would probably cost $20. here's what it looks like in rough form. i'll hopefully get it cleaned up a bit now that i know it works.





    so if anyone is interested i can do a cleaned up schematic, explain how it works and/or take better pictures.

    to be clear, it doesn't cancel automatically like the original unit but instead cancels by pushing down on the handlebar control switch.
    2002 bmw r1150gs 1978 gs1000E skunk les pew 1982 GS1100
    1980 gs1000G the ugly RLAM
  • rustybronco
    Forum LongTimer
    Bard Award Winner
    GSResource Superstar
    Past Site Supporter
    • Jul 2005
    • 14961
    • Marysville, Michigan

    #2
    You can do the same thing with 5 spst relays as well.

    Last edited by rustybronco; 06-12-2017, 11:44 PM.
    De-stinking Penelope http://thegsresources.com/_forum/sho...d.php?t=179245

    http://www.thegsresources.com/_forum...35#post1625535

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    • Eli69
      Forum Sage
      Past Site Supporter
      • Aug 2005
      • 4870
      • Wyoming County, New York

      #3
      Originally posted by rustybronco
      You can do the same thing with 5 spst relays as well.

      http://www.thegsresources.com/_forum...highlight=tscu
      Very similar and a much nicer schematic. I wonder if I can get hazards by switching L to R without cancelling? I'll have to try that.
      2002 bmw r1150gs 1978 gs1000E skunk les pew 1982 GS1100
      1980 gs1000G the ugly RLAM

      Comment

      • rustybronco
        Forum LongTimer
        Bard Award Winner
        GSResource Superstar
        Past Site Supporter
        • Jul 2005
        • 14961
        • Marysville, Michigan

        #4
        If you don't cancel it will have hazzard warnings although they will flash quicker unless you put a different flasher in it. (four lamp or electronic)
        De-stinking Penelope http://thegsresources.com/_forum/sho...d.php?t=179245

        http://www.thegsresources.com/_forum...35#post1625535

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