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What's the best way to wire a Wolo Bad Boy using the stock horn switch?

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  • What's the best way to wire a Wolo Bad Boy using the stock horn switch?

    I've mounted my Wolo Bad Boy between the down tubes under the voltage regulator. Based on Figure D in the installation instructions for use with the factory horn switch, I'd like to mount the relay under the side cover and tap into the connector for the factory horn under the front pulley; then connect them to posts 85 and 86 on the relay. Are the factory horn connectors + & - and if so, which one goes to which post on the relay? Also, can I just unplug the other horn down by the shifter, or do I have to bridge the connector?

    Any and all help would be greatly appreciated.

    Thanks!

    Doc_V

  • #2
    What you are describing is how I done mine. The wires from the rear horn that will go to the control side of the relay will energize a coil that is not polarity sensitive. I chased the front wires back to where they split and removed them.


    Wherever you go in life, ride there if at all possible.

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    • #3
      You can just unplug the front. I believe the positive in the original installation is pink, but the relay coil won’t care. It pulls, regardless of polarity and is insulated from the main poles and the housing.


      Wherever you go in life, ride there if at all possible.

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      • #4
        The horn switch uses a ground signal, not a positive. The positive is constant on the horn wiring, the switch gives it the ground.
        i bridged the 2 positives on the relay and used the horn wiring to activate the relay

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        • #5
          Thanks guys. It will be nice to finally have a horn people can hear.

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          • #6
            I shoved the connectors into the front horn connectors. Both my stock horns are still in play with the WOLO.
            Click image for larger version

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            • #7
              Originally posted by tapeit59 View Post
              I shoved the connectors into the front horn connectors. Both my stock horns are still in play with the WOLO.
              Click image for larger version

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              Would this method draw too much power ? Maybe weaken the WOLO output ?

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              • #8
                The horn switch PROVIDES a ground path, yes. Has no influence on the operation of a relay coil which leg of the energy supply is switched, but it is most common for switches in DC systems to provide a ground path. Generally reduces the total amount of positive energized wire in the system when it is not operating. This is a safety feature.


                Wherever you go in life, ride there if at all possible.

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                • #9
                  I mounted my relay under the seat. I also have a bus bar and a ground stud as well. I used the horn below the seat to trigger the relay and mounted the horn on the downtube with a p-clamp.
                  Peace,
                  Baron Wilhelm Gustav von Schmidt III
                  (But you can call me Joe)

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                  • #10
                    This is how i got mine mounted. You have unlimited options

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                    • #11
                      I first hooked my WOLO to the stock connectors and went with it. Sounded okay but didn't seem loud as it should be. Hooked the stock wires to the relay and ran battery power right to the relay for the horn and WHAT A DIFFERENCE! Way louder. Stock wiring just can't pass the current efficiently.
                      "Do or do not, there is no try."

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                      • #12
                        It is a great upgrade. I mounted mine under the left passenger floor board. I never flip them up got the wolo on one side and rap for roadwing on the other. Did the same wiring as jd did.

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                        • #13
                          WOW what a difference! Now I can't wait for an excuse to honk my horn.

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                          • #14
                            The wolo gets power from it's own feed not the horn power it gets signal from the horn












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