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  1. #1
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    electricity gurus needed for installing a horn

    So I bought a Wolo bad boy knockoff horn to install on my burn bicycle. I have already installed leds and a small 100w motorcycle stereo system on it so i already have an 18ah 12v wheelchair battery. since the horn is a knockoff of the wolo bad boy i followed the wiring instructions shown here
    wiring.jpg

    i am also using a motorcycle killswitch button as the horn button. the horn works on and off. it seems that i can do a short honk or two before it stops honking and the relay starts making a clicking sound. any idea on if i can wire this up without the relay without burning up the motorcycle horn button? i would really like simpler wiring as i already have tons of wires on my bike from the leds and stereo.

  2. #2
    Senior Member Number400's Avatar
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    Sounds like the battery cannot handle the draw of the horn and I don't think any wiring tricks will help.

  3. #3
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    Quote Originally Posted by Number400 View Post
    Sounds like the battery cannot handle the draw of the horn and I don't think any wiring tricks will help.
    i dont see the battery being the problem. it can handle the draw of an electric wheelchair motor. why would a horn draw any more?

    edit note* i have used this horn on a motorcycle battery just fine before. i cant imagine a deep cycle being any different
    Last edited by kachowkeith; 04-22-15 at 03:23 PM.

  4. #4
    aka Phil Jungels Wanderer's Avatar
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    Use the relay, as you will burn up the switch.

    "Retirement is the best job I ever had!" Me, 2009


    Specialized Crosstrail Sport - '08
    Nishiki Sport - misappropriated from my youngest son (circa 1984)
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  5. #5
    aka Phil Jungels Wanderer's Avatar
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    What size wire are you using? I'd prob be using 12 ga.

    "Retirement is the best job I ever had!" Me, 2009


    Specialized Crosstrail Sport - '08
    Nishiki Sport - misappropriated from my youngest son (circa 1984)
    Marin Stinson - misappropriated by my youngest grandson - '01
    "The Beast" - 1990 Schwinn Airdyne (in the basement for winter torture)

  6. #6
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    The "clicking" noise you hear from the relay is simply the relay working normally. Relays click when you use them. You can wire it without a relay, but you need a switch that can handle the power. The starter switch is not that.

    I'd suspect a grounded wire somewhere.

    What happens when you just hold the horn button? Do you own a multimeter?

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