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  • Headlamp Installation Problem

    Hey guys,

    Just bought a used 1980 Special and have it purring like a kitten. It was originally equipped with a Vetter fairing which I did not care for. I took off the fairing before the bike even ran with the intent of putting on a stock headlamp. I have the headlamp installed but am having an electrical problem. When the ignition is turned on, I have all lights, starter, horn but no headlamp or gauge lights. When the light switch is in "low" and the headlamp circuit is jumped with a hot wire, the headlamp turns on until the hot wire is removed. When the light switch is manually turned to "high" and the circuit is jumped with the hot wire, the headlamp and the gauge lights go on and stay on even after the hot wire is removed. Also, as the lights go on in "high" I hear a distinct "click". The relay?? In "high" all of the lights stay on even when the hot wire is removed. But, after I turn off the ignition and turn it back on, the headlamp and gauge lights are once again nonfunctional. Do I have a headlamp relay problem? Or do you have any other ideas. If it is the relay, where is it and what does it look like?

  • #2
    The lights are not supposed to come on till after the bike starts, but stay on after the engine dies with the key on.
    Nathan
    KD9ARL

    μολὼν λαβέ

    1978 XS1100E
    K&N Filter
    #45 pilot Jet, #137.5 Main Jet
    OEM Exhaust
    ATK Fork Brace
    LED Dash lights
    Ammeter, Oil Pressure, Oil Temp, and Volt Meters

    Green Monster Coils
    SS Brake Lines
    Vision 550 Auto Tensioner

    In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

    Theodore Roosevelt

    Comment


    • #3
      To add to it, the headlight relay (goldish colored box right above the iggy coils) is activated by the charging system, that's why they don't come on till after starting.
      Nathan
      KD9ARL

      μολὼν λαβέ

      1978 XS1100E
      K&N Filter
      #45 pilot Jet, #137.5 Main Jet
      OEM Exhaust
      ATK Fork Brace
      LED Dash lights
      Ammeter, Oil Pressure, Oil Temp, and Volt Meters

      Green Monster Coils
      SS Brake Lines
      Vision 550 Auto Tensioner

      In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

      Theodore Roosevelt

      Comment


      • #4
        Well I'll be damned.

        I guess I'll stop trouble shooting for now. Thanks.

        Comment


        • #5
          Yup there is lots of those fun little moments to come as you play with your new xs!
          Nathan
          KD9ARL

          μολὼν λαβέ

          1978 XS1100E
          K&N Filter
          #45 pilot Jet, #137.5 Main Jet
          OEM Exhaust
          ATK Fork Brace
          LED Dash lights
          Ammeter, Oil Pressure, Oil Temp, and Volt Meters

          Green Monster Coils
          SS Brake Lines
          Vision 550 Auto Tensioner

          In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

          Theodore Roosevelt

          Comment


          • #6
            And when you look at your brake pads on the front of that Special model, be aware, they are supposed to be slanted like that.....REALLY.
            Life is what happens while your planning everything else!

            When your work speaks for itself, don't interrupt.

            81 XS1100 Special - Humpty Dumpty
            80 XS1100 Special - Project Resurrection


            Previously owned
            93 GSX600F
            80 XS1100 Special - Ruby
            81 XS1100 Special
            81 CB750 C
            80 CB750 C
            78 XS750

            Comment


            • #7
              Originally posted by DGXSER View Post
              And when you look at your brake pads on the front of that Special model, be aware, they are supposed to be slanted like that.....REALLY.
              Hi Thomas,
              while you are checking out the weirdness, also be aware that the XS11's engine runs backwards.
              The headlight not lighting up until the engine starts (to be exact, when the alternator starts charging) is a feature also found on other Yamahas of that era; perhaps on modern Yamahas also?
              Last edited by fredintoon; 05-29-2011, 10:09 AM.
              Fred Hill, S'toon
              XS11SG with Spirit of America sidecar
              "The Flying Pumpkin"

              Comment


              • #8
                Ha ha, you guys were so right. Everything working. I never had a problem.

                Comment


                • #9
                  Glad ya got it figured out!
                  Nathan
                  KD9ARL

                  μολὼν λαβέ

                  1978 XS1100E
                  K&N Filter
                  #45 pilot Jet, #137.5 Main Jet
                  OEM Exhaust
                  ATK Fork Brace
                  LED Dash lights
                  Ammeter, Oil Pressure, Oil Temp, and Volt Meters

                  Green Monster Coils
                  SS Brake Lines
                  Vision 550 Auto Tensioner

                  In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                  Theodore Roosevelt

                  Comment

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