Blue wire bypass - headlight relay mod - Page 3 - 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 #21 of 31 (permalink) Old 05-24-2018, 04:25 PM
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Without looking it up, I think the blue wire mod only bypasses the relay, not the RLU.

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post #22 of 31 (permalink) Old 05-24-2018, 05:52 PM
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Quote:
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Without looking it up, I think the blue wire mod only bypasses the relay, not the RLU.
You're right.

There's a thread here somewhere about an RLU bypass.

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post #23 of 31 (permalink) Old 05-24-2018, 06:04 PM
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Ahhhhh, so maybe I didn't need to do the mod in the first place. This LED light was "supposed" to be plug and play. Comes with an inline driver that is supposed to stop error messages due to lower wattage.

Does anyone know if the OPT7 LED bulb needs either of these mods?

Thanks!
David
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post #24 of 31 (permalink) Old 05-24-2018, 06:27 PM
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Quote:
Originally Posted by magicdave2 View Post
Ahhhhh, so maybe I didn't need to do the mod in the first place. This LED light was "supposed" to be plug and play. Comes with an inline driver that is supposed to stop error messages due to lower wattage.

Does anyone know if the OPT7 LED bulb needs either of these mods?

Thanks!
David
https://www.vn750.com/forum/19-electr...ng-unit-2.html

Thorn wrote this guide too.

edit : I guess this is the same one he posted earlier.

Looks like the RLU just isn't happy with the OPT7.

I would keep the blue wire mod. You have an LED headlight now, and the relays in the JB are trouble. You just bypassed one.

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Last edited by Spockster; 05-24-2018 at 06:34 PM.
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post #25 of 31 (permalink) Old 05-24-2018, 10:54 PM
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Okay, I'll keep the blue wire mod and then do the RLU bypass as well.

What type of wire is best for the jump?

Thanks for the help everyone!

Sincerely,
David
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post #26 of 31 (permalink) Old 05-25-2018, 08:56 AM
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Quote:
Originally Posted by magicdave2 View Post
Okay, I'll keep the blue wire mod and then do the RLU bypass as well.

What type of wire is best for the jump?

Thanks for the help everyone!

Sincerely,
David
12-14ga primary wire is good.

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post #27 of 31 (permalink) Old 05-25-2018, 09:38 PM
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Thanks Spockster!! Have a great holiday!!
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post #28 of 31 (permalink) Old 05-26-2018, 10:28 AM
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Thanks Spockster!! Have a great holiday!!
You're welcome, same to you!

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post #29 of 31 (permalink) Old 06-14-2018, 10:47 AM
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Hey that is a good idea if a stator goes out, pull the headlight fuse and just ride in the daytime. You can do the switch mod later if you decide to replace the stator. I would guess pulling the fuse would cut the power to everything related to the head light circuit. Will have to look at a good wiring diagram, the ones I've found so far for the vulcan are terrible, small, black and white, plus blurred out.
Pretty sure its the LAW to run a headlight on your Motorcycle here in sunny Florida.So......my Stator pooped out so tried the "Battery tender" thing,was OK but really tough to figure when that battery would die...then leave you sitting/walking.Not a enjoyable way to ride!!
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post #30 of 31 (permalink) Old 06-17-2018, 06:00 PM
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Did this, made going through the lights electric system much better. Plus I like it just coming on with the key and knowing the headlight is working right away.

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