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Old Jul 24th 2017, 04:47 PM   #11
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Originally Posted by zkjad View Post
Obviously there is an open circuit between the regulator and the battery or very high resistance, (faulty connection)
After further testing according to the link from Halo, all 3 stator leads produce .3 ohms of resistance (he link suggests I should have maximum (open) resistance), but the stator is still producing upwards of 30V measuring across the same leads.....
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Old Jul 24th 2017, 04:54 PM   #12
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Read it again

This time each of these should measure almost short circuit (very low resistance in order or about 1 ohm)

Its because its wired in star, it should be open circuit to ground as written.
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Old Jul 24th 2017, 06:31 PM   #13
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I believe you have loose wire. Use voltmeter and measure between the VR and negative terminal on the battery, If you see 14-15V, most likely there is loose positive wire. Then try measuring the positive terminal on the battery and chassis ground. Any point on the engine should give you ground connection.
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Old Jul 24th 2017, 08:00 PM   #14
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Originally Posted by Halo2 View Post
Read it again

This time each of these should measure almost short circuit (very low resistance in order or about 1 ohm)

Its because its wired in star, it should be open circuit to ground as written.
Yes, this is true when checking continuity; however my concern is the statement below

This next check is probably the simplest/quickest way of determining a stator problem
- in majority of cases a bad stator will be indicated by failing following test:
Check resistance from any one pin to the engine ground terminal – this should not read any indication – maximum resistance or open-circuit.
If you read ‘short’ in that last test, then your stator is bad.
[/I]
(if open, it is not quite guaranteed your stator is good however - but in majority of cases a failed stator will fail this isolation test)

This is where I'm getting .3 ohms (but still getting ~30v at the RR)
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Old Jul 24th 2017, 08:12 PM   #15
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The fact your not blowing fuses and getting voltage from each phase suggests false reading. Are you using a fluke?


Last edited by Halo2; Jul 24th 2017 at 08:17 PM.
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Old Jul 24th 2017, 10:57 PM   #16
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ignore all the stator replies, you have got good voltage at the phase lead outputs, ignore the battery replies, it won't be pulling the voltage down that much. Is there battery voltage at regulator with engine off?? If no, then find the open circuit from battery.
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Old Jul 25th 2017, 03:47 AM   #17
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Originally Posted by zkjad View Post
ignore all the stator replies, you have got good voltage at the phase lead outputs, ignore the battery replies, it won't be pulling the voltage down that much. Is there battery voltage at regulator with engine off?? If no, then find the open circuit from battery.
I'm becoming more convinced the stator is the issue. Double checking the integrity of the stator indicates it's faulty. I'm no electrical guru, but I am getting good voltage to the RR but the stator is grounding out to the engine based on my electrical test (thus no voltage across battery )

Getting .3 ohms of resistance from the stator leads to the negative battery terminal indicates bad insulation or some other issue.
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Old Jul 25th 2017, 05:15 AM   #18
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You need to isolate the stator from the bike to test it properly or you could get a false ground, when you checked the stator for continuity to ground did you have ALL 3 wires disconnected from the bike?

As a sparky I would doubt the stator they should last as long as a starter motor (very long). I did 90,000kms on my r1 and besides oil/filter only had to replace clutch plates.
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Old Jul 25th 2017, 05:26 AM   #19
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I haven't removed the stator from the bike. But I have checked all three stator leads to ground and they are giving me the same reading (.3 ohms) indicating a short. Ricks Motorsports Electrical here in the US has a video I used to double check I was doing this properly and he didn't remove or isolate the stator. I really hate to pull the cover unless necessary, but it's looking like that's not going to be an option at this point.
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Old Jul 26th 2017, 01:50 PM   #20
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Are u sure you are getting 30 volts AC at the stator leads unplugged, if the stator was shorted to ground, the voltage may be 3 or .3 volts AC, check your meter scale.

Mmmmm, but you did say you were getting 14 / 15 volts DC at the regulator output terminals, so that would indicate stator OK.

Recheck and advise.

Retired auto electrician.

Last edited by zkjad; Jul 26th 2017 at 02:03 PM.
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