2 wire mod and headlight - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Electrical
Where does this wire go?
Includes Electrical mods, Lights, Stator,
Rectifier, Diagrams, etc

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post #1 of 4 (permalink) Old 02-09-2017, 05:46 PM Thread Starter
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2 wire mod and headlight

Hello , I'm a newbie I did turn wrenches professionally but not on bikes and electrical is one of my poorer understood things

So I did the 2 wire mod I'm a new owner of the vulcan but it seems like the relay doesnt work always that's why I did the mod hoping it would work ..

Well I don't know why but the headlight won't work with the 2 wires indicadted put together ... I went back to stock wiring and the headlight works again ...

Am I missing something ?? Thanks for any help I can get ..Don
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post #2 of 4 (permalink) Old 02-09-2017, 07:27 PM
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The Two Wire mod isn't meant to deal with headlight problems.

If the headlight doesn't always come on, it could mean the one stator wire that triggers the relay is losing output. Could also be a problem with the headlight relay in the JB. Assuming no problem elsewhere, that is.

The Blue Wire mod, or headlight bypass, blue wire bypass, will make the headlight function regardless of stator output or any malfunction of the JB. The blue wire for the headlight relay is moved to an empty pin location. There's a pinned thread on it, and it's really simple, just find the correct plug.

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__________________________________________________ ____________
Repair Manual: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf

Last edited by Spockster; 02-09-2017 at 07:34 PM.
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post #3 of 4 (permalink) Old 02-09-2017, 07:33 PM
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There's been a lot of discussion on variations of the wiring on the earliest years, some have run into headlight problems when trying the mod. Check the last pages of the thread, I think Thorn had it narrowed down as to where the pin locations varied.

I also have the headlight bypass done (blue wire mod), never a problem.
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2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
Repair Manual: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf
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post #4 of 4 (permalink) Old 02-12-2017, 08:38 PM Thread Starter
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Hello there, Thanks for the help I was trying the 2 wire mod to have it help with all the problems it listed ... I could do the blue wire mod too but then the headlight comes on even when cranking ... I read on here somewhere that you could use a toggle switch in the headlight bucket tied into the ground ... I am going to ride for a while First I hope....
Get my tag tomorrow and can't wait to get on the road ..I had the POOG problem when I brought the bike home I have been thru the gas cap and hope it stops that problem ... Sure glad you all are here ..Thanks, Don
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