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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Troubleshooting (Poor Starting/Running/Handling/Ride Issues) » Archive through July 18, 2011 » Charging system question. « Previous Next »

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Brettx1
Posted on Monday, June 13, 2011 - 08:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Battery hasn't been holding a charge, so I bought a multi-meter to test stator and regulator. I've been stumbling around with the tests from the manual. After testing for resistance from the stator, I got a reading of 0.6 ohms, the manual says it should be 0.2-0.4 ohms and anything lower means stator needs to be replaced. My question is, is 0.6 lower or higher, I really have no idea!? Any help is appreciated
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Terrys1980
Posted on Monday, June 13, 2011 - 09:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

2 tenths of an ohm is nothing to be concerned about. You could be losing(gaining) that in the multimeter probes.

How old is the battery?

(Message edited by terrys1980 on June 13, 2011)
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Jramsey
Posted on Monday, June 13, 2011 - 09:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The two wires out of the stator at fast idle the voltage should be 38-52 AC.

If ok reg is toast.
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Brettx1
Posted on Tuesday, June 14, 2011 - 08:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The battery is brandy new, so I know that's not the problem. Let me clarify, I stumbled through the test because I'm a newb with a multimeter. There are just way to many settings on this thing for me to be confident in what I've done. Perhaps if someone could tell me what settings to use when testing the stator/regulator, that would help a lot. If not I'll just take it to a local shop nearby, and I'll let them test everything. Thanks all for your input.
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Jramsey
Posted on Tuesday, June 14, 2011 - 08:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

To check for fried stator use the continuity function where the 2 probes touched together buzzes (digital type) or the needle (sweeps analog type) touch the black probe to ground and the red to one of the wires coming from the stator and if the needle sweeps or you get a buzz the stator has burnt windings and grounded out.

To check stator for output set voltmeter to 200 VAC and stick the probes in the 2 wires that come out of the stator, at fast idle anywhere between 38-52V.

Also remove the derby and take a wiff if the stator is fried you will know right quick as the smell won't leave your nose for a while.
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Harleyelf
Posted on Monday, June 20, 2011 - 07:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Did you check the stator wires for shorts to ground? My factory installed stator had its cable pinched at the cam cover, then poorly repaired and put back in the pinch point with sharp edges of the repair not trimmed. A few years of use and one wire shorted to ground. Replaced with a XL stator and all is well. Resistance between wires was 0.6 ohms, but the output was sucked into the frame, showing 11 volts DC across the battery when running. You must have 14 volts DC across the battery when the engine is running, and more than 24 volts AC across the stator wires.
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Brettx1
Posted on Tuesday, June 21, 2011 - 08:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks to all for your time, but I was still scratching my head. Dropped the bike off at a local shop for my sanity's sake. I'll update when they figure it out.
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