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On my 77 gl1000, I can't get the horn to work, I've got three different horns, None work when hooked to the wires, but you touch them to battery and it works,

I have a good 12v at the wires when I push the horn button, Tested with a voltmeter, I've Taken all conections apart on the bike and cleaned and tightend them.

This is my last electrical problem, Any Ideas, I would say bad horns, but they work when I touch the leads to the battery, So I'm kinda stumped, unless I'm not getting enough amps to is,

Thanks Guys for the help
 

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The Irish Crew
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You should only have 12v at one wire, the other is a ground. Try running a seperate ground wire to a bolt on the frame and see if it works then.
 

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Gearhead76 wrote:
On my 77 gl1000, I can't get the horn to work, I've got three different horns, None work when hooked to the wires, but you touch them to battery and it works,

I have a good 12v at the wires when I push the horn button, Tested with a voltmeter, I've Taken all conections apart on the bike and cleaned and tightend them.

This is my last electrical problem, Any Ideas, I would say bad horns, but they work when I touch the leads to the battery, So I'm kinda stumped, unless I'm not getting enough amps to is,
Gearhead76, if the actualhorns work when connected to a remote 12 volt source than you are left with the possibility of 2 problems.

The first is: you have a bad ground on the (-) terminal side of the horn. Try running a jumper wire between the horn's (-) side terminal & a good CLEAN frame ground as FitzAlsuggested.

OR, second (if the above ground doesn't help) is: not enough current to the horns to allow them to work. Try re-measuring the voltage at the horn's (+) terminal with the horn(s) installed & hooked up. If you still have the 12 volts measured with the wire hooked to the horn then suspect the ground wire on the (-) terminal of the horn(s). You could also check the the voltage on the horn(s) (-) terminal while pushing the horn button (horn installed), if you show much over a 1/2 volt or so there you have a bad ground or open in the ground wire.

Twisty
 

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Sound great I'll check my grounds again, gotta pull the carbs off anyhow to fix the leak, I'll keep you posted
 

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This may sound silly, but it happened to me. Just after I got my 78 last fall the horns in my Windjammer seemed to fail. They sounded like dying bleating sheep instead of horns. After running through all the wiring and even buying a new set of horns, I found that my real problem was an almost dead battery. :gunhead: There was enough juice to start her, but not enough for the horns which seem to take a lot of juice. :baffled:Go figure. After a good charge, the horns worked great. Uffda!
 

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Mine wouldn't work even with it running, and the battery at 14.3v, The new set works on the bike if you hit them, That'll look nice if I want to use the horn you'll see me leaning over banging on it, lol:p, Oh well the horn will have to wait, right now I got the carbs ripped apart, and am cleaning them, oh what fun:gunhead:
 

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I sprayed a bunch of wd-40 up the horn, I didn't try it for about a week, today I got her running and now the horns work, I don't know if it the more voltage while it's running, or the WD-40 did the trick, Either way it works now
 
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