Still having charning issues - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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Where does this wire go?
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post #1 of 23 (permalink) Old 04-19-2010, 09:48 AM Thread Starter
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Still having charning issues

Ok, so I have replaced the regulator and still not its not charging. The stator was tested several times and that seems normal.

"check voltage on the brown wire at the r/r... if low, check voltage on pin 13 of the jb... if voltage is high then the diodes inside the vr could be burned out causing wrong trigger wire readings." Slim

I checked the volts at the brown wire and that was sitting just around 12ish even when revving the motor. I was unable to find pin 13. and what is a vr?

1992 Vulcan 750.
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post #2 of 23 (permalink) Old 04-19-2010, 10:22 AM
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Voltage regulator?

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
_____________________________________________
"Black Beauty"
1989 VN750 acquired December, 2008, 6,711 miles
Currently 23,298 miles

Old Blue
2001 Honda CMX250 Rebel acquired July, 2008

1987 VN750 project bike, acquired August, 2009, 33,000 miles and balancer sticking out of the case, currently awaiting attention and parts
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post #3 of 23 (permalink) Old 04-19-2010, 12:08 PM
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With the engine running, at the r/r you should see:
Black/yellow wire: Below 0.5V.
Brown wire: Above 13V.
White wire: above 13V.

More things to check (with ignition off):
- Resistance from Black/yellow wire to battery negative terminal.
- Resistance from White wire to battery positive terminal.
Both should be less than a few ohms.
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post #4 of 23 (permalink) Old 04-19-2010, 01:15 PM Thread Starter
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More things to check (with ignition off):
- Resistance from Black/yellow wire to battery negative terminal.
- Resistance from White wire to battery positive terminal.
Both should be less than a few ohms.
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how do you check resistance? If the brown and white wires are below 13 v, what can be concluded? I think I tested the brown wire with the bike running and it was about 12.6, which was the same as the battery.

1992 Vulcan 750.
Ear shaved and re-jetted.

Last edited by theone2043; 04-19-2010 at 01:18 PM.
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post #5 of 23 (permalink) Old 04-19-2010, 01:27 PM
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Quote:
Originally Posted by theone2043 View Post
More things to check (with ignition off):
- Resistance from Black/yellow wire to battery negative terminal.
- Resistance from White wire to battery positive terminal.
Both should be less than a few ohms.
Reply With Quote

how do you check resistance? If the brown and white wires are below 13 v, what can be concluded? I think I tested the brown wire with the bike running and it was about 12.6, which was the same as the battery.
Resistance is measured in ohms. On the meter, is usually designated by the Greek letter Omega (Ω). Hope this helps.

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
_____________________________________________
"Black Beauty"
1989 VN750 acquired December, 2008, 6,711 miles
Currently 23,298 miles

Old Blue
2001 Honda CMX250 Rebel acquired July, 2008

1987 VN750 project bike, acquired August, 2009, 33,000 miles and balancer sticking out of the case, currently awaiting attention and parts
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post #6 of 23 (permalink) Old 04-19-2010, 01:34 PM Thread Starter
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http://www.northerntool.com/shop/too...&ci_sku=163100

that is similar to the tool I have, when checking the battery I have it set to dcv 20 is that correct? What would I use to check for the resistance using this tool?

1992 Vulcan 750.
Ear shaved and re-jetted.
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post #7 of 23 (permalink) Old 04-19-2010, 01:53 PM
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Sorry, I have exhausted my limited knowledge of electronics! Someone else needs to chime in.

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
_____________________________________________
"Black Beauty"
1989 VN750 acquired December, 2008, 6,711 miles
Currently 23,298 miles

Old Blue
2001 Honda CMX250 Rebel acquired July, 2008

1987 VN750 project bike, acquired August, 2009, 33,000 miles and balancer sticking out of the case, currently awaiting attention and parts
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post #8 of 23 (permalink) Old 04-19-2010, 02:20 PM
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To check resistance with that meter, turn the dial to 200 in the section marked Ω (Ohms). Put the black (-) probe in the Common/ Ground position (bottom of the three positions). Put the red (+) probe in the V/Ω/mA position (middle of the three positions). Take following measurements and report the readings back here.

- Resistance from Black/yellow wire to battery negative terminal.
- Resistance from White wire to battery positive terminal.
Both should be less than a few ohms.
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post #9 of 23 (permalink) Old 04-19-2010, 07:04 PM Thread Starter
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Battery is sitting at 13v, tested the black/yellow and that was sitting around 11v, the white wire is in the 12's. All this was done at idle. The resistance for the black/yellow is at .6 and the white wire is at the same .6.

1992 Vulcan 750.
Ear shaved and re-jetted.
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post #10 of 23 (permalink) Old 04-19-2010, 10:53 PM
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you have 11V at the Black/yellow wire??? is that with black test lead on the MM to the wire and Red test lead to Battery +? or is that Black to ground, and red to wire?
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