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wiring in new horns

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  • wiring in new horns

    Found a diagram for the Hella horns with a relay, pulled the stock horns off and getting ready to run all the wires, connectors and whatnot. In the stock wiring there are 2 browns and a pink wire, I'm guessing the pink is the signal wire. Will I need to do anything with the brown wires?

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    2000 Roadstar 1600 - BAK, Pumpless, Curt's manifold, Mikuni HSR42 Freedom Combat Pipes Jumbo Strong bags, PPG 'HellFire' Paint.

  • #2
    Doesn’t the pink wire connect to your fuel tank so it glows!

    Comment


    • Jaybo
      Jaybo commented
      Editing a comment
      You are not helpful Steven.

  • #3
    Pink is in fact the signal wire and brown is 12V power to the horns. Page 7-37 of the Service Manual shows this. If you don't have the Service Manual I can send you a copy if you send me your email address in the messages section on here. I have it in .pdf format on my computer but this site will not let me upload a .pdf file.

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    • #4
      Originally posted by fastjohnny View Post
      Pink is in fact the signal wire and brown is 12V power to the horns. Page 7-37 of the Service Manual shows this. If you don't have the Service Manual I can send you a copy if you send me your email address in the messages section on here. I have it in .pdf format on my computer but this site will not let me upload a .pdf file.
      I found the service manual and diagram last night. Should I just use the 12V wires as my power into the relay, or run a new 12V wire from the battery to the relay?
      2000 Roadstar 1600 - BAK, Pumpless, Curt's manifold, Mikuni HSR42 Freedom Combat Pipes Jumbo Strong bags, PPG 'HellFire' Paint.

      Comment


      • fastjohnny
        fastjohnny commented
        Editing a comment
        Run a new wire from the battery thru a 20 Amp fuse to terminal 30/51 on the relay for the power. The single pink wire from the horn button will be the signal wire to terminal 86 on the relay. Terminal 87 on the relay will connect to the horns. This is how I read the schematic anyway. As davej indicates below, if the new horns don't need any more amperage than the stock horns you don't need the new relay. I'm not sure what the amp draw is for stock horns, but if the new horns require more amps you'll have to run an appropriate size wire to the new horns from the new relay.

    • #5
      what hella horns are you using? If they don't need any extra amperage than the stock horns just use the stock horn wiring right to the horn. if they use more amps to power than the stock wires can handle use the stock wires to activate the relay and use a larger wire from the battery with an inline fuse to the relay to power the horns.

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      • #6
        The first diagram posted pretty much explains it for me.

        Comment


        • #7
          Originally posted by davej View Post
          what hella horns are you using? If they don't need any extra amperage than the stock horns just use the stock horn wiring right to the horn. if they use more amps to power than the stock wires can handle use the stock wires to activate the relay and use a larger wire from the battery with an inline fuse to the relay to power the horns.
          They are 2x66 watt 118db horns. The stock wires seem tiny so probably just run new wires so I get the full loudness.
          2000 Roadstar 1600 - BAK, Pumpless, Curt's manifold, Mikuni HSR42 Freedom Combat Pipes Jumbo Strong bags, PPG 'HellFire' Paint.

          Comment


          • #8
            That is what I would do. In fact that is what I did when I installed my WOLO badboy horn. I just use the oem wires to control the relay.

            Comment


            • Doc_V
              Doc_V commented
              Editing a comment
              I did the same with my WBB.

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