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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: Ward on June 05, 2017, 09:26:15 AM

Title: Horn has mind of it's own.
Post by: Ward on June 05, 2017, 09:26:15 AM

Hello. I'm new to K100s. Just picked up an original owner '88 K100lt with 20k miles. Great condition bike. I went through all the maintenance items before firing it up. Had to install a new starter relay because the old one was fried because of a weak battery. The bike fired right up and everything worked well. I went on my first ride...


A few miles from home the horn just started blaring. I pulled over and tried shutting the bike down. Horn kept going for about 5 minutes then stopped. I started the bike and went home. Same scenario happened again so I pulled the horn fuse so I could get to work.


I've looked at many posts and I can't find one with this unique problem. Horn decideds to come on and go off on its own. Any suggestions?

Title: Horn has mind of it's own.
Post by: Elipten on June 05, 2017, 10:26:29 AM

Check relay.  Check and clean horn switch.  This is where I would start.


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Title: Re: Horn has mind of it's own.
Post by: Martin on June 05, 2017, 03:09:58 PM

Clean the contacts check the wiring for bare wires shorting out. Worst case scenario get an Exorcist it could be possessed.  :yow
Regards Martin.

Title: Re: Horn has mind of it's own.
Post by: bizzaro on June 09, 2017, 08:35:44 AM

Count your blessings my friend. The horn is such a simple thing.  :kill-sword-dueling: