Turn signal mystery - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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Where does this wire go?
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post #1 of 5 (permalink) Old 04-27-2019, 01:24 PM Thread Starter
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Turn signal mystery

Installed new turn signals on my 93 Vulcan 750. Bulbs are good. Right turn signal operates normally, the left blinks fast. swapped wires on front signals, got fast flashing on right, so i know it's not the lights. The hazard lights blink fine in rear, alternate flashing on front signals, thats weird! Tried a different turn signal relay, NO CHANGE!! Now I'm stumped!! What else could it be??
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post #2 of 5 (permalink) Old 04-28-2019, 06:10 AM
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fast flashing usually means the mate in the front/back pair is burnt out. when you have fast flashing on the front signal, what is the rear doing? Sounds like both are lighting up when the hazards are engaged, but can you verify that? Might be a weak short to ground in the harness between flasher module and signals.

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Wiring Diagram + annotations * still undergoing revisions, but still more useful than the generic one. Let me know if you find mistakes or think something additional should be added
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post #3 of 5 (permalink) Old 04-28-2019, 09:29 PM Thread Starter
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Rear left flashes fast like the front one on left side. Thought for sure it would be the relay, but after trying a different one, no luck. I've swapped bulbs in front and still the same thing on left side. I even tried hooking up my older turn switch to see if the switch was the issue, but nope, same problem. What else regulates the flashing??
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post #4 of 5 (permalink) Old 04-29-2019, 05:05 AM
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It's a higher-than-expected resistance situation, so you could check to see if your blinker circuit grounds are clean and secure. Are your new lights LEDs?

1992 US-nonCA * tuxedo mod * r/r relocated

Vulcan slang for newcomers
Service Manual Download
Wiring Diagram + annotations * still undergoing revisions, but still more useful than the generic one. Let me know if you find mistakes or think something additional should be added
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post #5 of 5 (permalink) Old 04-29-2019, 06:20 AM
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"The hazard lights blink fine in rear, alternate flashing on front signals" Are you absolutely sure about that? Can you put the old signals back and see what happens?

I am a motorcyclist, NOT a biker.


1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
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1994 Yamaha XT225 parts bike
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