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Old 09-25-2008, 03:27 PM   #1
MAVER1CK
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SV650 Horn Sometimes Mute?

Hi, All

I seem to be having a strange issue, my sv650 horn seems to go almost mute at times. Its like you push it and you can barely hear a 'beep' on it, then after some time, I can actually hear the horn loud as it should sound. Haven't figured out what the issue, might be thought maybe someone here has had something similar to this before?

Also, I know this might be important in the troubleshooting steps; I started having the issue after I washed my bike on Sunday. Didn't put any pressure wash to the handle bar/o.d.o area but I did let a bit of water run on it to wash off the soap. I had wash it the same way at least three other times and never had that happen before.
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Old 09-25-2008, 03:32 PM   #2
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someone playing a prank on you wired it to some timer maybe?
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Old 09-25-2008, 03:52 PM   #3
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Mine does it sometimes. As long as it works for insp. I dont care.
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Old 09-25-2008, 05:33 PM   #4
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Check the wires on the horn itself..its infront of ur radiator. Its circular in shape and should have 2 wires going to it. Check the connections because my SV did the same this back in the day and one of the wires had a poor connection.

If its taking a while for it to sound after u hold the horm button down then its a bad connection or high resistance in the wires some where. Since u just washed it with a pressure washer u prbably just loosened the connections or got dirt in them...
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Old 09-25-2008, 05:36 PM   #5
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Loose contacts or corrosion can cause problems such as you mentioned.

As for water on the handlebars; my bikes stay outside 24/7.

A voltmeter should be used, not a test light. Disconnect the horn and put the red/blk pins into each of the pins. doesn't necessarily matter which pins, just looking for numbers.

Should show battery voltage when hitting the horn button. If there is a negative infront of the number, the pins need to be reversed; but it doesnt matter for this check.

If there is no voltage, put the ground to the battery and checked the power supply when pressing the horn. If still no power, there is an issue further up from the wires that lead to the horn and into the housing. Get a wiring diagram and follow it backwards from there.

If there is a good power, check resistance to ground and if all else checks out, its the windings in the horn. Make sure the cone doesn't face up... water getting inside will damage it overtime.
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Old 09-25-2008, 05:39 PM   #6
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Old 09-25-2008, 07:13 PM   #7
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Thanks for all the info guys, will check the voltage today and see if what it says.

I didn't pressure wash the handle bar area, but did put some water pressure by the radiator area.
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Old 09-25-2008, 07:50 PM   #8
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Quote:
Originally Posted by MAVER1CK View Post
Thanks for all the info guys, will check the voltage today and see if what it says.

I didn't pressure wash the handle bar area, but did put some water pressure by the radiator area.
I bet its a loose connection
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Old 09-25-2008, 07:58 PM   #9
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loose connection,
if all your lights/signals work correctly, then your fuses and wiring should be good throughout the bike
i know when i pull my signal fuse, my horn goes dead too
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