Charging issue - Page 2 - 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 #11 of 28 (permalink) Old 06-15-2019, 09:22 AM
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Here's the pin diagram from the manual, the monitor (sense) wire is between the the positive and ground. Monitor wire is brown, if I recall.

Link to repair manual download, just in case you need it: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

R/R Pin Diagram

Can't get it to display, try this link: http://image.wikifoundry.com/image/1...4167/GW618H800

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

Last edited by Spockster; 06-15-2019 at 09:58 AM.
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post #12 of 28 (permalink) Old 06-16-2019, 08:37 AM
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Was the replacement R/R an original or MOSFET part?

'99 Vulcan "Victoria"
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post #13 of 28 (permalink) Old 06-16-2019, 12:25 PM Thread Starter
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The replacement was a ricks electric. I spoke with a friend who says if it’s supposed to be infitinity resistance and I’m getting 6.5 m ohms that is too low a number compared to infinity. Conveniently I looked up the part and I have a zn700ltd from 85 and it’s the same regulator. Going to try that all the grounds and plugs are good and clean. I can’t say the wires are not corroded inside but nothing is getting warm or hot as I’d expect if it was shorting to ground.
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post #14 of 28 (permalink) Old 06-16-2019, 01:36 PM
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Quote:
Originally Posted by N01290088 View Post
The replacement was a ricks electric. I spoke with a friend who says if it’s supposed to be infitinity resistance and I’m getting 6.5 m ohms that is too low a number compared to infinity. Conveniently I looked up the part and I have a zn700ltd from 85 and it’s the same regulator. Going to try that all the grounds and plugs are good and clean. I can’t say the wires are not corroded inside but nothing is getting warm or hot as I’d expect if it was shorting to ground.
That chart in the manual can be a bit confusing. Are you sure you checked the terminals correctly?

Some terminals should be infinity, others range from 10k, 0.4 to 2k, 1 to 5k, and 0.2 to 0.6k.

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

Last edited by Spockster; 06-16-2019 at 01:39 PM.
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post #15 of 28 (permalink) Old 06-17-2019, 10:42 AM Thread Starter
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Yes I believe I followed the chart correctly in my testing. I can check again to be sure
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post #16 of 28 (permalink) Old 06-22-2019, 08:50 AM Thread Starter
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So I tested the regulator with it out of the bike and did not get the tests to come up as the chart indicated. Said yay new regulator. Tried the resistance chart with new one got extremely similar numbers to the replacement. Plugged in new regulator exact same conditions 13.1-2 volts at 1500 rpm. It drops to 12.95 at 3000.
What are the chances of two new replacement regulators being bad? Or am I right to assume this is elsewhere in the wiring. As stated earlier the resistance test and voltage test of the stator were in spec.
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post #17 of 28 (permalink) Old 06-22-2019, 09:01 AM Thread Starter
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Just tested a new idea. Rechecked the stator it’s still infinity to ground at the plugs on stator end. I checked the resistance of the wires from the harness. I have infinity on 2 of three and 12m ohms on the a3 wire at both ends when I just do continuity between both ends I have .1 ohms the other 2 just read zero. Is there any reason a single wire would be different other than a short in harness?
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post #18 of 28 (permalink) Old 06-22-2019, 09:54 AM
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Quote:
Originally Posted by N01290088 View Post
Just tested a new idea. Rechecked the stator it’s still infinity to ground at the plugs on stator end. I checked the resistance of the wires from the harness. I have infinity on 2 of three and 12m ohms on the a3 wire at both ends when I just do continuity between both ends I have .1 ohms the other 2 just read zero. Is there any reason a single wire would be different other than a short in harness?
The two wires with infinity are broken?

edit: >>> Somebody check me on this. Thorn, Tony, MTB .. anyone. I've struggled with the definition of 'infinity' in this sense lately.

Experts say infinity to ground on a stator test is good. Meaning no connection to ground.

So infinity on the wire test means no connection?

My Meter only shows OL, Open Loop, have not seen ∞ , the infinity symbol.

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

Last edited by Spockster; 06-22-2019 at 12:20 PM.
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post #19 of 28 (permalink) Old 06-22-2019, 10:04 AM Thread Starter
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Ok last thing. I cut the battery wire and negative and wired with a same piece of wire directly to the battery. Perfect 12.5 volts at 1000 13 volts at 1500, and 14.2 at 2500 and up. Can I just wire this like this with a more permanent situation (thicker wires with round hooks currently I just have a wire spliced on with it wrapped around the battery to test it)
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post #20 of 28 (permalink) Old 06-22-2019, 10:12 AM
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Originally Posted by N01290088 View Post
Ok last thing. I cut the battery wire and negative and wired with a same piece of wire directly to the battery. Perfect 12.5 volts at 1000 13 volts at 1500, and 14.2 at 2500 and up. Can I just wire this like this with a more permanent situation (thicker wires with round hooks currently I just have a wire spliced on with it wrapped around the battery to test it)
Yes, should be fine. If it's the wires from the R/R, you're bypassing the JB and the wiring harness, Both can be problems.

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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