Voltage regulator - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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Where does this wire go?
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post #1 of 32 (permalink) Old 04-26-2016, 10:06 AM Thread Starter
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Voltage regulator

Does a 1998 reciftar have 5 wires or 6 mine has six 3 yellows a brown one ,a white on and a black and yellow but this is a problem the black and yellow is ground wire and it's causing the white wire to burn and I am not charging please help about to go crazy with this
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post #2 of 32 (permalink) Old 04-26-2016, 10:13 AM
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stock unit has 6. as you noted, 3 yellow, a brown, a white, and a black/yel.

the 3 yellow go to the stator. the black/yel is the chassis ground. I dont remember which the brown and white are, and I dont have a wiring diagram in front of me right now.

I *THINK* the brown is a 'sense' wire (feedback to the regulator to control output), and white is the positive feed to the rest of the system (battery and other loads)

if my memory is correct, and the white wire is positive to the rest of the bike, and its burning up, then you have a short somewhere in the wiring or a shot battery

2005 VN750

Sold 11-27-17
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post #3 of 32 (permalink) Old 04-26-2016, 10:23 AM Thread Starter
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Is there any way to bypass this and the bike will still charge I can not find the short any where and I can not keep buying battery
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post #4 of 32 (permalink) Old 04-26-2016, 10:28 AM
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Sounds like a good opportunity to put in a newer (and much better) MOSFET regulator. If you're frugal, you can buy the parts for the same price as a new battery.

1986 VN750 27k miles
1999 EN500 32k
1983 GL650i in pieces. Someday it will ride again.
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post #5 of 32 (permalink) Old 04-26-2016, 10:40 AM Thread Starter
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Why buy a new regulated if the wires are going to burn up and just burn up the new part and kill the battery I was not wanting to spend any more money than possible I have 3,000 in a 1200 dollar bike already but this for the suggestion
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post #6 of 32 (permalink) Old 04-26-2016, 10:43 AM
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there is only 1 way a wire will 'burn'... too much current thru it. need to find the cause of that before changing out parts blindly.

the MOSFET upgrade bypasses the existing wiring (except for the 3 stator wires) and connects directly to the battery. However, it will NOT cure a problem that exists unless that problem is the old regulator.

have you done the full charging system diagnostics?? checked the stator, the R/R, and all associated components?

2005 VN750

Sold 11-27-17
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post #7 of 32 (permalink) Old 04-26-2016, 10:56 AM Thread Starter
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It's a brand new regulated and all three yellow wires are doing fine when I put the White wire and the brown whire on first then when I go to put the blk ,yellow it arks I am truly lost with it we when I first hooked up I was getting back almost 17 back to battery but no head light so I did the blue wire trick on junction box still no light I am just trying to get it fixed super quick and a least money as possible this is my only trans and I have missed three days work got to find easy way
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post #8 of 32 (permalink) Old 04-26-2016, 10:57 AM
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Is it even possible for the stator to cause excess current? Just curious. I was picturing the alternate regulator as a fix specifically because it bypassed all the related stock wiring.

1986 VN750 27k miles
1999 EN500 32k
1983 GL650i in pieces. Someday it will ride again.
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post #9 of 32 (permalink) Old 04-26-2016, 10:58 AM
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Are you sure you're correctly reconnecting the black/yellow wire? Pictures might help here.

1986 VN750 27k miles
1999 EN500 32k
1983 GL650i in pieces. Someday it will ride again.
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post #10 of 32 (permalink) Old 04-26-2016, 11:07 AM Thread Starter
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When looking at the reg white brwn blk yellow on bottom and any combt on top right the white was getting 19vts I believe the brown was 5,or 9 and blk yellow 5
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