Wiring help - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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Where does this wire go?
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  • 1 Post By OleDirtyDoc
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post #1 of 7 (permalink) Old 03-03-2017, 01:50 PM Thread Starter
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Wiring help

Hi folks, can anyone help me? I'm nearly finished my rebuild and has come to a head scratching moment lol, from the Speedometer comes a lead with four wires into a four way connection block. Picture One

Then on my wiring harness/loom there is only one available block connector left, which has two wires into a two way connection block. Picture Two

I had to buy the wiring loom via eBay, previous owner had hacked the original one beyond repair and again I had to buy the gauges as the PO had removed those too. So I can't find anything in the manuals about any difference in the wiring of the Speedometers and as far as I can see the Speedometer only has a bulb that needs power. On the two pin block from the wiring loom, two of the wire colours matches two from the four pin block on the speedometer, so I'm hoping/assuming that I can join these? What are the two other wires in the 4 pin block for, can I just tape them up?

Last question what are the two wires that are in Picture three, again I can find nothing in the manual, are they for running auxiliary bits?

Cheers in advance, Gaz
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post #2 of 7 (permalink) Old 03-03-2017, 03:36 PM
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can't remember on the plugs but the two wires are for auxiliary accessories if I remember correct. haven't played with a Vulcan in almost four years!

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post #3 of 7 (permalink) Old 03-03-2017, 03:39 PM
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what year is the harness from and the gauges from? early model VN's had an auto cancel feature for the turns signals that the later models did not. the speedo had some electronics in it, as did the turn signal switch (a solenoid to return it to center)
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post #4 of 7 (permalink) Old 03-03-2017, 03:58 PM
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i cant see the wire colors going in to the 2 wire connection in your second picture. but if they are red/blue and black/yellow, then that is for your speedometer. the black connector at the bottom of that picture is for your headlight.

the 3rd picture is of the accessory leads that live in your headlight bucket. they are fused with a 10amp fuse in the junction box. the blue/white wire is your + and the black/yellow is the negative. the positive is always hot, even when the bike is off. so dont attach anything to that wire with out giving it a cut off switch or you will drain your battery.

as for our first picture, i have no idea. there is nothing in my wiring diagram that shows a 4 pin connection. it looks like the colors are red, red/blue. black/yellow and i cant make out the fourth one.

I am headed to my bike this evening and I will look and see what it is connected to or if i even have it.
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post #5 of 7 (permalink) Old 03-04-2017, 03:31 AM Thread Starter
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Quote:
Originally Posted by michiganteddybear View Post
what year is the harness from and the gauges from? early model VN's had an auto cancel feature for the turns signals that the later models did not. the speedo had some electronics in it, as did the turn signal switch (a solenoid to return it to center)
Cheers buddy, unfortunately I don't know what specific year either the gauges or harness are from... although after reading a little further I think you're right about it being for the the auto cancel feature

Quote:
Originally Posted by Drew M. View Post
i cant see the wire colors going in to the 2 wire connection in your second picture. but if they are red/blue and black/yellow, then that is for your speedometer. the black connector at the bottom of that picture is for your headlight.

the 3rd picture is of the accessory leads that live in your headlight bucket. they are fused with a 10amp fuse in the junction box. the blue/white wire is your + and the black/yellow is the negative. the positive is always hot, even when the bike is off. so dont attach anything to that wire with out giving it a cut off switch or you will drain your battery.

as for our first picture, i have no idea. there is nothing in my wiring diagram that shows a 4 pin connection. it looks like the colors are red, red/blue. black/yellow and i cant make out the fourth one.

I am headed to my bike this evening and I will look and see what it is connected to or if i even have it.
Appreciated, I'm heading out to the shed today hopefully I'll something to report back later

Quote:
Originally Posted by OleDirtyDoc View Post
can't remember on the plugs but the two wires are for auxiliary accessories if I remember correct. haven't played with a Vulcan in almost four years!
Cheers Doc ... Too many bikes and not enough time lol

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post #6 of 7 (permalink) Old 03-09-2017, 06:43 PM
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Hey Gaz,
Not sure where you landed with this. I do not have that connector. Sorry it took me,so long to get back to you. Life and sh*t, ya know.
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post #7 of 7 (permalink) Old 03-10-2017, 07:43 AM Thread Starter
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Quote:
Originally Posted by Drew M. View Post
Hey Gaz,
Not sure where you landed with this. I do not have that connector. Sorry it took me,so long to get back to you. Life and sh*t, ya know.
No worries Drew... I live that dream too lol,
I just taped off the two extra wires, I can only assume they were for the few models that came with turn signal cancelling? Everything else is working as it should

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