T Mack 1 - FSO
Serious Thumper Alliance Member
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sold 2001 LS650 for a 1986 XLH1100
Posts: 2919
Emmaus,Pa
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Since it's a '07, it may just be a loose connection which isn't giving you enough juice to power it.
So, here's a quick lesson on horns.
Unless it's a air horn or a motorized horn (aaahooga) , horns are basically vibrating plates that are moved by electro magnets. Energize it and the magnet pulls in the plate, which opens up an internal switch to remove the power, which make the plate move back, which then closes the internal switch which moves the plates.... repeat & repeat & repeat super fast to make noise. Not enough juice (amps) and not much noise out......
The wiring on bikes is a bit different then cars. On most bikes, including the LS650, the horn is not grounded to the frame. Power comes from the fuse, through the horn, then goes to the handle bar switch which, when pushed, closes the circuit to a "ground" (the bars).
To test the horn, disconnect it and put 12v across it. Warning, might be loud...... If it works, then you will need to check the wiring.
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