What does this thing do? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 12 (permalink) Old 12-22-2010, 07:10 PM Thread Starter
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What does this thing do?

I was doing the r/r relocation tonight on my vulcan and found something kinda interesting to me. I found a 6 pin connector that was unplugged and laying on top of the swing arm. I followed it back and found that goes to a black box bolted to the bottom left corner of the batter box. What is this black box and what does it do? the connection for this plug is up behind the battery box on top by the rear fender. I am attaching a few pics to hopefully clarify what im talking about. Thanks for the help.

Attachment 3310

Attachment 3311

Devin Mohler
Corporal, United States Marine Corps

1989 Honda Interceptor 500
1986 Vulcan 750, paid in full (250 bucks)

R/R Relocated (Thanks flitecontrol)
Splines Lubed
Battery Tender permanetly installed
Custom Seat

Planned mods and things:
Ear shave (using stock ears as storage)
Coastering
Wrapping exhaust
Custom Exhaust

Last edited by Diamondjim05; 02-10-2011 at 03:18 PM.
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post #2 of 12 (permalink) Old 12-22-2010, 08:55 PM
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I haven`t spent enough time hands-on inside there to be sure, but I think the connector may connect to the IC ignitor. It is part of the ignition system.

The color of the wires in the ignitor connector are
BLACK,
RED,
DARK GREEN,
RED/WHITE STRIPE,
BLACK/WHITE STRIPE,
BLACK/YELLOW STRIPE.

Do those colors match your loose connector?

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

H-D windshield
Relocated R/R
MF-AGM battery
Fiamm Freeway Blaster horns
F&S luggage rack and engine guard
Kury Offset Hiway pegs
July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO. Click on link.
https://www.vn750.com/forum/11-vn750-general-discussion/9127-top-ten-items-you-would-suggest-new-owner-do-his-new-ride.html
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post #3 of 12 (permalink) Old 12-22-2010, 09:18 PM Thread Starter
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No they do not match. Here are the colors of wires at the plug.

Red
White/Green
White/Red
Teal or Light Green
Black/Yellow
Blue/White

Im pretty sure those are the colors, but im partially color blind so sometimes i cant really tell.

Devin Mohler
Corporal, United States Marine Corps

1989 Honda Interceptor 500
1986 Vulcan 750, paid in full (250 bucks)

R/R Relocated (Thanks flitecontrol)
Splines Lubed
Battery Tender permanetly installed
Custom Seat

Planned mods and things:
Ear shave (using stock ears as storage)
Coastering
Wrapping exhaust
Custom Exhaust
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post #4 of 12 (permalink) Old 12-22-2010, 09:23 PM
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Quote:
Originally Posted by Diamondjim05 View Post
No they do not match. Here are the colors of wires at the plug.

Red
White/Green
White/Red
Teal or Light Green
Black/Yellow
Blue/White

Im pretty sure those are the colors, but im partially color blind so sometimes i cant really tell.
I looked at the wiring diagram and according to the colors you just listed they go to the turn signal control unit located on the right side of the bike.

Here is a link to a picture I just uploaded of the wiring diagram. It's not the best looking, but hopefully it will work.

https://www.vn750.com/photopost/showp...o=3212&cat=730

1990 Kawasaki Vulcan 750
12,000
English Version

ACCT to MCCT conversion video
https://www.vn750.com/forum/showthread.php?t=18235

ACCT to MCCT Conversion Thread created by wib714
https://www.vn750.com/forum/showthread.php?t=17917

Proximity Construction

Last edited by NetMatrix; 12-22-2010 at 09:33 PM. Reason: add link for wiring diagram
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post #5 of 12 (permalink) Old 12-23-2010, 01:00 AM
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That box is part of your self cancelling turn signal system. Plug it in and see if the turn signals turn off after your turn on the turn signals and the front tire revolves for 50 meters. I want to say only the '85-'88? bikes had this system...after that it was discontinued. I believe the problem with them not working correctly is something wrong in the turn signal switch itself.
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post #6 of 12 (permalink) Old 12-23-2010, 12:21 PM Thread Starter
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I will have to take your word on that one for now, the PO laid the bike down and im in the process of getting it road ready again. Is it a vital piece of the turn signal circuit or does it just shut off the signals after travelling 50 meters?

Devin Mohler
Corporal, United States Marine Corps

1989 Honda Interceptor 500
1986 Vulcan 750, paid in full (250 bucks)

R/R Relocated (Thanks flitecontrol)
Splines Lubed
Battery Tender permanetly installed
Custom Seat

Planned mods and things:
Ear shave (using stock ears as storage)
Coastering
Wrapping exhaust
Custom Exhaust
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post #7 of 12 (permalink) Old 12-23-2010, 02:41 PM
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Yes, that's the self canceling turn signal thingy (yea, that's a technical word). I have it on my VN700 as well, it doesn't work on mine and it doesn't affect anything else, Bike runs just fine without it.
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post #8 of 12 (permalink) Old 12-23-2010, 02:41 PM
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Oh and the turn signals do work without it, you just gotta cancel them manually.
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post #9 of 12 (permalink) Old 12-23-2010, 02:46 PM Thread Starter
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ok great, well then i will have to plug it back in and see if it works. if not i will just unplug and forget about it

Devin Mohler
Corporal, United States Marine Corps

1989 Honda Interceptor 500
1986 Vulcan 750, paid in full (250 bucks)

R/R Relocated (Thanks flitecontrol)
Splines Lubed
Battery Tender permanetly installed
Custom Seat

Planned mods and things:
Ear shave (using stock ears as storage)
Coastering
Wrapping exhaust
Custom Exhaust
Diamondjim05 is offline  
post #10 of 12 (permalink) Old 12-23-2010, 11:35 PM
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Yeah...mine is plugged in and yet the self cancelling does not work. I need to run the tests to see what part of the system is not working. I believe there are only 3 components to the system. 1. the Turn Signal control box 2. The sensor in the speedometer that sends the pulses to the control box to tell it when the bike has traveled 50 meters (roughly 150 feet). 3. the solinoid that is behind the turn signal switch. I hear the solinoid behind the switch either quits working or the transfer bars? that hook to the switch come apart or get misaligned. I have not had the switch apart yet. I usually always remember to turn my turn signals off, but since the system is there...I would like for it to work.
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