Neutral light stuck on in all gears - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 6 (permalink) Old 02-27-2017, 01:02 PM Thread Starter
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Question Neutral light stuck on in all gears

Hey guys. The rebuild on my '86 is done, and rideable. There's one thing that's bugging me, the green neutral light is always on no matter what gear I'm in. I did a quick check of the wires and nothing seemed to be pinched. Anyone have any ideas?

'86 VN750
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post #2 of 6 (permalink) Old 02-27-2017, 01:53 PM
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Sounds like you're aware that it's a ground-switched circuit. D/C the wire from the switch. If it stays on, it's wiring. If it goes out, your switch is bad.

I'm not sure what about this model, but on other bikes like Gold Wings, you can clean the switch. Shouldn't be hard to change if that's necessary, or just leave the wire off.

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post #3 of 6 (permalink) Old 03-01-2017, 12:25 PM Thread Starter
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Update: searched all over, couldn't find any pinched wires. I disconnected the green wire for the neutral switch and the light didn't go off. Any other ideas?

'86 VN750
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post #4 of 6 (permalink) Old 03-01-2017, 03:09 PM
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i had a similar issue..I lost my lights - turned out the wire came off its connect to the ignition. after taking the time to run through the wires touching each one I found the rite combination. be careful though as some wires will work as they are touched together. although there a falsity to the right combination. perhaps this is what you may have?
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post #5 of 6 (permalink) Old 03-01-2017, 03:21 PM
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as Hex said,if you disconnect from the switch and it stay on,its grounding,which means bare wire to frame. if it goes out,bad switch.when he says grounded circuit, it means it has to ground to come on.if it went out when you disconnected it,it means the switch is constantly grounded out,hence,bad switch

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post #6 of 6 (permalink) Old 03-01-2017, 04:08 PM
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Yep. Power is fed to the bulb any time the ignition is on. It's the ground side that is connected or disconnected. You have a spot between the bulb and the switch that is grounding that wire, possibly to the frame, but also could be bad insulation shorting it to another wire.

Verify by testing resistance (DMM set to Ohms) between that wire and the frame, with it disconnected from the switch. You'll find some continuity, i.e. a short to ground.

The easiest fix for a wiring situation like that is often to just clip the wire and run a new one. You can sometimes even connect the new wire to the old and use it to feed the new one into place.

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