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No lights except for brake light - flasher box?

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    No lights except for brake light - flasher box?

    Well the 1000G did another 80 odd miles today. On the way home from my office I went to indicate - nothing... odd, I just used a hand signal.

    Anyway, at home I realised the headlight had also quit. Took a look round the back, yep, tail light out too. Check the brake light with both levers - fine.

    Took the fuse out (top 10amp) & tried a known good one. Nothing.

    Took the covers off, relay for flashers makes one click when you push it either way.

    Not yet checked the plug up by the tank - that is a possibility I guess....

    Also on my list of possible culprits is that flasher box that switches the flashers automatically... had a quick scan at the wiring diag & it seems like headlight power at least goes into that box... not sure about the tail light.

    No time to get the meter out yet but I thought I'd post, see if someone had ever had the exact same symptoms.

    Cheers,

    Dan
    1980 GS1000G - Sold
    1978 GS1000E - Finished!
    1980 GS550E - Fixed & given to a friend
    1983 GS750ES Special - Sold
    2009 KLR 650 - Sold - gone to TX!
    1982 GS1100G - Rebuilt and finished. - Sold
    2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

    www.parasiticsanalytics.com

    TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

    #2
    Not sure about your particular problem, but this might help a bit in your troubleshooting:

    Top fuse handles headlight, tail light and instrument lights
    Second fuse handles signals, which include brake lights, turn signals, horns
    Third fuse handles ignition, including ignitor box and coils
    Fourth fuse is the main fuse
    Fifth fuse is the AUX fuse that powers the terminal just below it.

    Usually, if the turn signal control box fails, it will allow the signals to come on and flash, but won't turn them off automatically. I suppose it might also fail in such a way as to turn it on, but not flash. I would think a more likely suspect would be the flasher relay, not the control unit.

    Have you checked front and rear signals? If one of them is out, the other will come on but not flash.

    .
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    Comment


      #3
      Yep, all dead all at once.. incl headlight & tail light but not brake light.

      Maybe there is a plug with connectors in for all those, still have idiot lights on the dash.

      Relay is triggering once (like it would if you had one bulb out or the wrong power draw) but not getting any illumination.

      Dan
      1980 GS1000G - Sold
      1978 GS1000E - Finished!
      1980 GS550E - Fixed & given to a friend
      1983 GS750ES Special - Sold
      2009 KLR 650 - Sold - gone to TX!
      1982 GS1100G - Rebuilt and finished. - Sold
      2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

      www.parasiticsanalytics.com

      TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

      Comment


        #4
        big plug on right side under tank towards the front. been there before but I was 150 miles from home deep in the heart of deer country, and it was very dark.

        Comment


          #5
          , that will be the next place to check then

          Must be these cr***y roads in Socal bumping it out of position.....

          See if I can fix the neutral light whilst I'm in there I guess
          1980 GS1000G - Sold
          1978 GS1000E - Finished!
          1980 GS550E - Fixed & given to a friend
          1983 GS750ES Special - Sold
          2009 KLR 650 - Sold - gone to TX!
          1982 GS1100G - Rebuilt and finished. - Sold
          2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

          www.parasiticsanalytics.com

          TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

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