Stator ?

pastor t

Active Member
Been having a clicking issue for a while. Ruled out VR, battery, starter. Replaced battery and VR and just got my rebuilt starter back from WSW(I love the slam button Curtis). Battery was about 12.8. Started the bike and it climbed a little but still under 13 at idle. Unplugged the VR Put the multimeter in the stator connection. The book says I should be getting 2-3 ohms and I got 000. Pulled one probe out and grounded it on the case, book says reading should be OL my reading was 1.

Would anyone agree or disagree that the stator is bad?

Thanks everyone!
 

DRBarnhart

Insert title here...
Been having a clicking issue for a while. Ruled out VR, battery, starter. Replaced battery and VR and just got my rebuilt starter back from WSW(I love the slam button Curtis). Battery was about 12.8. Started the bike and it climbed a little but still under 13 at idle. Unplugged the VR Put the multimeter in the stator connection. The book says I should be getting 2-3 ohms and I got 000. Pulled one probe out and grounded it on the case, book says reading should be OL my reading was 1.

Would anyone agree or disagree that the stator is bad?

Thanks everyone!
It sounds bad but I'd do the full test like a former member "Nighttrain" suggested...

Testing the Stator.

Let me preface this be saying you need to be extremely careful when performing the AC voltage check. It should not kill you but it is sure to scare the shit out of you of you let the probes touch each other or ground and will probably damage your meter and probes. Perform this test before the beer.

To test the stator start with a resistance test.

1. Remove the VR plug from the stator.

2. Measure the resistance across both pins of the stator plug. The resistance should be 0.5ohms or less, usually it is zero on most meters. Do not forget to subtract the resistance of your meter leads. If it is an open circuit the stator windings are damaged and the stator needs to be replaced.

3. Measure resistance from Pin 1 (either Pin) to ground and then from Pin 2 to ground. It should be an open circuit in both cases. If it is not then that means the windings are shorted to ground and the stator is bad, the plug may be damage or the rotor has interfered with the wires. Remove outer primary and rotor to inspect stator.

4. If stator passes resistance check you can check the output voltage. Again BE CAREFUL!! remove the vR/Stator plug. Start the bike, measure AC voltage across the to stator pins. At idle you will have around 15-20VAC, the voltage will increase as the RPM is increased. The voltage can go up to about 60VAC or more at high RPM. Have a buddy help you run the throttle, keep you eyes on the probes and do not let them touch each other or ground. If you see voltage as indicated below the stator is functioning.

Dennis
 
X2:2thumbs:

It sounds bad but I'd do the full test like a former member "Nighttrain" suggested...

Testing the Stator.

Let me preface this be saying you need to be extremely careful when performing the AC voltage check. It should not kill you but it is sure to scare the shit out of you of you let the probes touch each other or ground and will probably damage your meter and probes. Perform this test before the beer.

To test the stator start with a resistance test.

1. Remove the VR plug from the stator.

2. Measure the resistance across both pins of the stator plug. The resistance should be 0.5ohms or less, usually it is zero on most meters. Do not forget to subtract the resistance of your meter leads. If it is an open circuit the stator windings are damaged and the stator needs to be replaced.

3. Measure resistance from Pin 1 (either Pin) to ground and then from Pin 2 to ground. It should be an open circuit in both cases. If it is not then that means the windings are shorted to ground and the stator is bad, the plug may be damage or the rotor has interfered with the wires. Remove outer primary and rotor to inspect stator.

4. If stator passes resistance check you can check the output voltage. Again BE CAREFUL!! remove the vR/Stator plug. Start the bike, measure AC voltage across the to stator pins. At idle you will have around 15-20VAC, the voltage will increase as the RPM is increased. The voltage can go up to about 60VAC or more at high RPM. Have a buddy help you run the throttle, keep you eyes on the probes and do not let them touch each other or ground. If you see voltage as indicated below the stator is functioning.

Dennis
 

pastor t

Active Member
Retested stator and rotor with auto ranging multimeter and within normal range. Cleaned connections and seems to be solved for now.
 
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