R/R and stator test procedures; & one more ? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 5 (permalink) Old 07-23-2011, 12:23 AM Thread Starter
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R/R and stator test procedures; & one more ?

can someone please point me to where the r/r and stator test procedures are. I've been looking all night with no luck. i must be blind i guess...lol.

also can someone point me to where to get the Mosfet r/r kit. been looking for that also.

and for the other ?

i was talking to a buddy about my stator or r/r may be bad. he says its the r/r. when they go bad, the stator stops producing power to charge battery. and not to waste my time on pulling engine for stator change.

can enyone comform this. thanks all.





Jeff Brooks
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'94 Vulcan 750

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post #2 of 5 (permalink) Old 07-23-2011, 12:54 AM
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Quote:
Originally Posted by cm4cm5 View Post
can someone please point me to where the r/r and stator test procedures are. I've been looking all night with no luck. i must be blind i guess...lol.

also can someone point me to where to get the Mosfet r/r kit. been looking for that also.

and for the other ?

i was talking to a buddy about my stator or r/r may be bad. he says its the r/r. when they go bad, the stator stops producing power to charge battery. and not to waste my time on pulling engine for stator change.

can enyone comform this. thanks all.
Tell your buddy"You don't know Jack" the stator puts out ac voltage any time the engine is turning unless it is bad,although it can put out voltage and it goes into the R/R and never be heard from again if the R/R is bad.




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92 vn750(sold)
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post #3 of 5 (permalink) Old 07-23-2011, 01:13 AM Thread Starter
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thanks Denny, thats what i was thinking. when i do find my problem, and if it is the stator, im going to change both the stator and r/r. just to cover both.

going to send stator to Tom, and get the mosfit r/r.





Jeff Brooks
Owensboro KY
'94 Vulcan 750

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post #4 of 5 (permalink) Old 07-23-2011, 06:55 PM
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Quote:
Originally Posted by cm4cm5 View Post
can someone please point me to where the r/r and stator test procedures are. I've been looking all night with no luck. i must be blind i guess...lol.

also can someone point me to where to get the Mosfet r/r kit. been looking for that also.

and for the other ?

i was talking to a buddy about my stator or r/r may be bad. he says its the r/r. when they go bad, the stator stops producing power to charge battery. and not to waste my time on pulling engine for stator change.

can enyone comform this. thanks all.
Here`s a link to tests for the r/r:
http://vn750.wetpaint.com/page/Charging+System

STATOR TEST
You can test at the r/r connector first.
If the readings are not within spec, disconnect the bullet connectors on the stator wires and retest there.


Test the stator for AC voltage between the 3 yellow wires in sets.
Call the yellow wires A, B and C.
Test 3 times; AB, AC and BC.
With a warm engine at 4-5K rpm you should get 50-70 volts AC.



With the engine OFF, test the same three sets of yellow wires for continuity and resistance in the stator coils.
Set digital meter to 2,000 ohms scale, symbol looks sort of like a curvy upside down U or horseshoe.
{Do tests first on this higher scale. If no readings exceed 200 ohms, click down to the lowest scale (200 ohms on my multimeter), then retest.}

Touch leads together for base reading. At this low resistance level you need to subtract this base reading from the stator readings to get an accurate measurement.

Manual says stator windings resistance should be 0.32- 0.52 ohms between sets of yellow wires.
Ron/lance328 says anything up to 2 ohms should be ok as long as all 3 are almost equal.




Then with the engine still OFF, test continuity between each individual yellow stator wire and a good ground on the frame.
Any continuity indicates a ground to frame, and the stator needs to be replaced.
You want to see infinite resistance, usually indicated by a reading of "1" on the digital mm.

Link to another stator test writeup:
https://www.vn750.com/forum/showthread.php?t=8555
Specs vary a bit, but you may find something I forgot.

Gordon

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Purchased May 16, 2008
Approx.19,300km (12,000 miles)

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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

Last edited by OlHossCanada; 07-23-2011 at 07:24 PM. Reason: additional info
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post #5 of 5 (permalink) Old 07-25-2011, 05:34 PM Thread Starter
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ok..after test, after test, and retesting just to make sure...lol...im getting .6 oms out of the r/r plugs (yellow wires AB, AC, BC) and 62 volts at 4K rpm,( AB, AC, BC) if I'm reading everything correctly, my stator is good and strong. just r/r is fried.

will anyone confirm my findings.





Jeff Brooks
Owensboro KY
'94 Vulcan 750

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