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Brake light wiring question

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    #16
    Well guys, I have solved the mystery and thought you'd like to know what I found. Turns out I left out a key bit of information. I'd forgotten that I had replaced the rear taillight bulb (1157), with an LED unit. In fact, I forgot all about it until I removed the lens this afternoon and discovered it. I replaced it with a conventional bulb and everything returned to normal. THANK YOU one and all for your suggestions and advice. I also have a much needed clean front brake light switch
    Willie
    Common sense has become so uncommon that I consider it a super power.


    Present Stable includes:
    '74 GT750 Resto-mod I've owned since '79
    '83 GS1100E (The best E I've ever enjoyed, Joe Nardy's former bike)
    '82 GS1100G Resto project

    Comment

      #17
      Originally posted by willie View Post
      Well guys, I have solved the mystery and thought you'd like to know what I found. Turns out I left out a key bit of information. I'd forgotten that I had replaced the rear taillight bulb (1157), with an LED unit.
      Actually, you still have a problem.

      Merely installing an LED replacement whould not cause any problems.

      We have an LED replacement in my wife's bike, have had NO problems with it.

      .
      sigpic
      mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
      hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
      #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
      #2 son: 1980 GS1000G
      Family Portrait
      Siblings and Spouses
      Mom's first ride
      Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
      (Click on my username in the upper-left corner for e-mail info.)

      Comment

        #18
        Well that's not good. I prefer to think that the cheap-assed LED was causing a problem by "bleeding" voltage over into the brake light circuit from the running light circuit. Support of this idea is that, with a conventional bulb in place, there isn't any voltage present when I measure across the wires going to the brake light with the ignition turned on. Also, the 2nd filament lights up only when the brake switch is activated. Thoughts?
        Willie
        Common sense has become so uncommon that I consider it a super power.


        Present Stable includes:
        '74 GT750 Resto-mod I've owned since '79
        '83 GS1100E (The best E I've ever enjoyed, Joe Nardy's former bike)
        '82 GS1100G Resto project

        Comment

          #19
          Originally posted by willie View Post
          Thoughts?
          Might be your "cheap assed bulb".

          Maybe try another LED 'bulb'?

          .
          sigpic
          mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
          hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
          #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
          #2 son: 1980 GS1000G
          Family Portrait
          Siblings and Spouses
          Mom's first ride
          Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
          (Click on my username in the upper-left corner for e-mail info.)

          Comment

            #20
            I have never had LED's cause that problem, either?
            http://www.thegsresources.com/_forum...ine=1352313915
            1979 GS1000

            Comment

              #21
              It would not surprise me to hear that some ultra-cheap Chinese versions might do some strange stuff, but a decent one should be OK.

              Comment

                #22
                Supports the old saying that you get what you pay for. FWIW, its the type of LED bulb that has a bunch of little yellow squares fastened to it and not the kind that have the conventional looking LEDs. I was going to attach a link of one from ebay but its several lines long.
                Common sense has become so uncommon that I consider it a super power.


                Present Stable includes:
                '74 GT750 Resto-mod I've owned since '79
                '83 GS1100E (The best E I've ever enjoyed, Joe Nardy's former bike)
                '82 GS1100G Resto project

                Comment

                  #23
                  ts amazing what gets into those switches, isn't it? I also found it easy to adjust them incorrectly either so that the brake light was always on, or where it took a lot of travel to come on.
                  sigpic Too old, too many bikes, too many cars, too many things

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