Stator, R/R, Battery, or D all of the above.. - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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Where does this wire go?
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post #1 of 27 (permalink) Old 10-21-2006, 08:47 AM Thread Starter
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Stator, R/R, Battery, or D all of the above..

I have had increasingly more difficulty getting the bike to turn over when hot. Yesterday, I had to push start it. Then got caught in an accident, got off the interstate and it stalled on the off ramp. Screwed. Buddy came by with tools and cables. Jump started it instantly. Measured voltage on the battery and it was in the 10.5 range.
Now I had been trying to start it for an hour and am sure completely drained the battery.

Okay, I have charged the battery overnight (3 month old AGM).

How can I test to find out where the problem is? What voltages do I look for and where? Under what conditions (rpms)?

Bike has 22,500 on it.

Thanks,

Jon
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post #2 of 27 (permalink) Old 10-21-2006, 09:16 AM
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ok that 10.5 is what... battery with or without drain, or is that while running and at what rpms....

to help you out i need this info...take ur stator wires disconnect them from the r/r and let it run.... take a Meter and mesure the AC voltage comeing from the stator at various rpm... Vulcan versus have what is should be at if you wanna check. then plug it back into the r/r and meausure the battery and see what the voltage is at at various rpm... BTW ur batt is more then likely toast... have it load tested at any auto parts place...

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post #3 of 27 (permalink) Old 10-21-2006, 03:14 PM Thread Starter
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Quote:
Originally Posted by Hizzo3
ok that 10.5 is what... battery with or without drain, or is that while running and at what rpms....

to help you out i need this info...take ur stator wires disconnect them from the r/r and let it run.... take a Meter and mesure the AC voltage comeing from the stator at various rpm... Vulcan versus have what is should be at if you wanna check. then plug it back into the r/r and meausure the battery and see what the voltage is at at various rpm... BTW ur batt is more then likely toast... have it load tested at any auto parts place...
Fully charged the battery overnight. Started it up and measured the following (battery term/stator):

off 12.78Vdc
1200 12.22 (Vdc) 21.5 (Vac)
2000 12.55 (Vdc) 29.5 (Vac)
3000 12.78 (Vdc) 40 (Vac)
4000 12.85 (Vdc) 60 (Vac)
5000 12.85 (Vdc) 74 (Vac)

Found an Electrix flowchart said stator should be greater than 50Vac @ 5000RPM, that looks okay. Stator winding resistence should be 0.34 - 0.52 ohms, mine with crap meter (leads alone could be .5 ohms) reads 0.8 ohms. Would verify with a better meter if needed.

Battery voltage is very low, like nothing is going it at all from the charging system but stator output okay?

Ideas?

Jon

Last edited by 93VN750; 10-21-2006 at 04:00 PM.
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post #4 of 27 (permalink) Old 10-21-2006, 07:06 PM
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It's your regulator. Since you've had the stator disconnected from it, you would have seen if any of the plugs were corroded. Seeing how you didn't say anything about that, then the only other possibility would be a bad ground from the battery to the (wherever the battery ground goes). If that's OK, it's your regulator. Life isn't all that bad for you, after all, is it? Have you done the r/r relocation? Might want to with the new r/r. Anyhow, get one, plug it in, and see how your battery does. Your battery could be toast, as Hizzo said.

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post #5 of 27 (permalink) Old 10-21-2006, 07:16 PM Thread Starter
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Quote:
Originally Posted by cegodsey
It's your regulator. Since you've had the stator disconnected from it, you would have seen if any of the plugs were corroded. Seeing how you didn't say anything about that, then the only other possibility would be a bad ground from the battery to the (wherever the battery ground goes). If that's OK, it's your regulator. Life isn't all that bad for you, after all, is it? Have you done the r/r relocation? Might want to with the new r/r. Anyhow, get one, plug it in, and see how your battery does. Your battery could be toast, as Hizzo said.
Well that's certainly promising news.

Battery took a complete charge, have to see how it behaves in the bike with new regulator. Still under warranty, so if it is toast, shouldn't be a problem.

The stator leads looked fine. The ground is good too.

Yes, I think a relo and new r/r are in order. Hopefully I'll get off that lucky.

Should I even consider a used, ebay r/r? Or just get a new one?

Jon
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post #6 of 27 (permalink) Old 10-21-2006, 09:36 PM
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Regulator new should only cost about $40....Shop the internet

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post #7 of 27 (permalink) Old 10-21-2006, 09:39 PM Thread Starter
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Quote:
Originally Posted by dta116
Regulator new should only cost about $40....Shop the internet
Really, haven't seen one yet under $ 90!

Hint?

Jon
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post #8 of 27 (permalink) Old 10-22-2006, 12:28 AM
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Forty bucks? What you been smokin, boy? Ragweed?

Um, I think you should buy a new one. Stick to a name brand. For instance: Kawasaki.

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relocated R/R
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post #9 of 27 (permalink) Old 10-22-2006, 08:44 AM Thread Starter
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Quote:
Originally Posted by cegodsey
Forty bucks? What you been smokin, boy? Ragweed?

Um, I think you should buy a new one. Stick to a name brand. For instance: Kawasaki.
What about Electrex? BB has them for $90?

Jon
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post #10 of 27 (permalink) Old 10-22-2006, 12:39 PM
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I see them all the time on ebay for 39.95 ($40). They are new.....

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