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  • Air horns

    So I decided to add air horns but the compressor needed a 25 amp circuit so I added a relay, I installed it assuming everything was switched positive for the horns on our bike. Here's the kicker I'm posting to help everyone else my 2000 Roadstar and probably all of them use a switched negative for the horn circuit. I had to remove it all and rewire it. I hope this helps someone else I'll add a diagram later if I can
    Dave

  • #2
    I wired in an electric air horn. Much easier than running a compressor. BTW, mine was wired switch on the positive side.
    Peace,
    Baron Wilhelm Gustav von Schmidt III
    (But you can call me Joe)

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    • #3
      I installed a Wolo Bad Boy purchased at Harbor Freight Tools near where the AIS stuff fit in front of the engine, utilizing the relay that came with it. To mount it, I used a repurposed windshield bracket from a previous cruiser, but you can use a 1/8" steel plate @ 10" long x 2" wide and drill a centered 3/8" hole on each end. You might also put a bend partway along the bars length to offset the final location of the horn. I mounted the bracket to my lower highwaybar mount (use nylock nuts to prevent loosening by engine vibrations).

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      • #4
        I mounted mine pretty much in the same place with a black P-clamp to the left downtube. You can see this in the 1st picture. I mounted the relay under the seat along with the power fuse bar. I removed the OEM horn below the seat and used this as my signal for the relay.
        Peace,
        Baron Wilhelm Gustav von Schmidt III
        (But you can call me Joe)

        Comment

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