Brake light that controls the headlight...? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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Where does this wire go?
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post #1 of 13 (permalink) Old 10-06-2014, 08:41 AM Thread Starter
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Unhappy Brake light that controls the headlight...?

So after several days of tearing down my 1993 Vn750 I've decided to post here. My headlight works when it feels like. At an idle the headlight is always on, but while cruising and accelerating it'll cut off and on randomly... And another weird symptom, I find that if the headlight cuts of if I pull the rear brake just enough to activate the taillight the headlight will come back on...

Just noticed this morning that the headlight will flash with the blinkers

Last edited by NateHill92; 10-06-2014 at 09:06 AM. Reason: added symptoms
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post #2 of 13 (permalink) Old 10-06-2014, 09:17 AM
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Sounds like a bad connection to me. Wires pull forward under braking and to the rear under acceleration.
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post #3 of 13 (permalink) Old 10-06-2014, 10:33 AM
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Clean your ignition switch too, it have runs to the lights as well in there.

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post #4 of 13 (permalink) Old 10-06-2014, 11:01 AM
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X2 clean the switch and look for rubbing wires by the handlebars.

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post #5 of 13 (permalink) Old 10-06-2014, 11:06 AM Thread Starter
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So the lights are controlled by the ignition? Mind you the headlight is the only thing affected by whatever is going on. I'll pull and clean the ignition after work and post back with results. Thanks guys
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post #6 of 13 (permalink) Old 10-06-2014, 12:49 PM
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Not to be a bummer but the headlight it triggered by a stator lead.
Are you charging properly. Your symptoms are strange but it also may be
an odd qoincinence. Try checking your stator leads by switching them around.
If one of the legs on the stator have a short that is opening & closing with
temp change then switching the leads around should solve the headlight issue.
But it will have exposed a charging issue.

There is a good bit found here on checking the charging system.
Also, if you have not yet done so, you may want to download the free
repair manual found in my signature.
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post #7 of 13 (permalink) Old 10-06-2014, 02:56 PM Thread Starter
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Thanks, before I go tearing into my ignition I'm going to test the stator.
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post #8 of 13 (permalink) Old 10-06-2014, 07:04 PM Thread Starter
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Thumbs up

As for the "Goof Proof Stator Test!", my stator passed with flying colors... Now I'm on to taking out the ignition and inspecting it.
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post #9 of 13 (permalink) Old 10-06-2014, 07:09 PM
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could be a old battery or poor grounds

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i got my helmet but it sure makes licking the windows a chore

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post #10 of 13 (permalink) Old 10-06-2014, 08:34 PM
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once all the easy things are checked out (ign switch, grounds, bad/broken wires, bare wires, ect), look at the junction box.

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electrical problem , headlight not working , wiring

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