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interesting electrical issue
Posted: Sun May 08, 2022 5:24 pm
by 5speed
2007 shadow spirit.
when I blow the horn it kills the running lights. if I unhook the horn it doesn't do it.
I took the switch apart and there are no bare wires or loose connections..
it's got me stumped.
Re: interesting electrical issue
Posted: Sun May 08, 2022 8:27 pm
by gltriker
Kills the running lights, momentarily, only while the horn button is momentarily depressed ?
Running lights illuminate immediately afterwards without requiring a dedicated switch activation?
Might be an insufficient ground and the horn is the winner?
Re: interesting electrical issue
Posted: Mon May 09, 2022 7:13 am
by Sagebrush
Engine running or not? Both of my 1100s could only blow the horn once for a short duration if the engine wasn't running, too much of a drain on the battery. Might be something similar.
Re: interesting electrical issue
Posted: Mon May 09, 2022 9:09 am
by 5speed
the lights stay out. I need to turn the ignition switch off and back on to get the lights working.
this is with the bike off.
Re: interesting electrical issue
Posted: Mon May 09, 2022 2:16 pm
by Sagebrush
Does it have an automatically resetable circuit breaker in the circuit?
Re: interesting electrical issue
Posted: Mon May 09, 2022 2:21 pm
by 5speed
well..this is a new one for me...
took the led bulbs out of the front signal lights and put the incandescent ones back in and the problem went away.
Re: interesting electrical issue
Posted: Tue May 10, 2022 6:52 am
by Whiskerfish
Got to be a voltage drop issue. I would guess the sensitivity of the LED's is why you see it with them installed. The Incandescents probably dim but maybe not enough for you to see it. Did you check it with it running as Dean suggested? If you have a wiring diagram I would look for a common ground between the two systems and make sure that is good.
Re: interesting electrical issue
Posted: Tue May 10, 2022 8:59 am
by 5speed
Whiskerfish wrote: ↑Tue May 10, 2022 6:52 am
Got to be a voltage drop issue. I would guess the sensitivity of the LED's is why you see it with them installed. The Incandescents probably dim but maybe not enough for you to see it. Did you check it with it running as Dean suggested? If you have a wiring diagram I would look for a common ground between the two systems and make sure that is good.
I didn't try it running. I may later but the owner is okay with the old bulbs and I need to take it home so I can do the fork seals on my fj..
Re: interesting electrical issue
Posted: Tue May 10, 2022 8:05 pm
by heraldhamster
Whiskerfish wrote: ↑Tue May 10, 2022 6:52 am
Got to be a voltage drop issue...
my guess as well.