Question about 2000 Harley Davidson FLHRCI Road King Classic
Hi Mitch_steven, perform the following tests:
1. Fill acid type batteries to proper levels.
2. Charge battery overnight at 1-2 amps you need 12 volts or better after charging.
3. Make sure all connections are clean and tight especially the negative cable at both ends.
4. Hook up volt meter to battery and start engine, if meter falls below 9.5 v replace battery.
5. With engine running at 3600 RPM battery should read 14.3-14.7 volts if not continue tests.
6. Unplug voltage regulator from alternator at crankcase by front of primary cover.
7. To test voltage regulator go to: https://www.youtube.com/watch?v=F8EjV0IjW9Q
8. With ohm meter, one lead grounded, touch alternator pin meter should read infinity, if not replace stator.
9. With ohm meter, both leads touching alternator pins meter should read 0.1 to 0.2 ohms on 1989 and later models. 0.2 to 0.4 ohms 1988 and earlier models, if not replace stator.
10. With volt meter set on AC scale, both leads touching alternator pins meter should read
16 to 20 volts AC for every 1000 RPM'S 1989 and later and 19 to 26 volts AC for every 1000 RPMS. If not replace rotor. Good luck
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Posted on Jan 02, 2017
The voltage regulator should present 13.5 to 14.5 volts at the battery to charge it properly (engine at fast idle). I'm not sure if the V regulator is adjustable or not. If not, then it probably needs to be replaced. The alternator appears to be trying to do it's job, although it may have an open diode or winding if the alternator is 3-phase. An oscilloscope is the best tool to check for all three phases working properly. Good luck!
Posted on Aug 25, 2009
If power out of the regulator is down to 10 volts then the regulator is naff - replace it!
If power going into regulator goes as low as 10 across the phases then the alternator needs rewiring (not very likely)
Hope this helps (if so please mark as very helpful)
Posted on Apr 15, 2010
If you are checking from one of the stator prongs to engine ground and you get continuity, your stator is bad. It would probably be a good idea to replace the regulator. I think Harley sells a kit that is priced fairly reasonable. But, check the rotor. I've seen one rotor that didn't have any magnetism in it. That's right, It was a genuine Harley part and the rotor had no magnetism in it. It was a friend of mine that put the stator in another guy's bike but it wouldn't charge. I checked everything and found nothing wrong except no output. Pulled it down and that's what we found. We simply put the guy's old rotor on it and it worked fine.
Posted on Jun 20, 2011
Testimonial: "Thanks for the advice, and I will check the new rotor if I replace it."
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