1999 Ultra classic Charging Issue
https://www.hdforums.com/forum/evo-c...ng-system.html
https://www.hdforums.com/forum/elect...sting-1-a.html
https://www.hdforums.com/forum/elect...sting-2-a.html
I went aftermarket 3 Phase Compufire for their complete new system and that unit was still charging strong 13 years (at 170,000 miles,) later.
(Cycle Electric is another good option. No more mixing and matching.)
I went aftermarket 3 Phase Compufire for their complete new system and that unit was still charging strong 13 years (at 170,000 miles,) later.
(Cycle Electric is another good option. No more mixing and matching.)
If you are... then find what's draining your system.
If not, if you're not getting anything from the regulator, I'd take off the DC out connector off the regulator and check the regulator there to see if I am getting anything out of the regulator when the bikes running... If I am, then I'm going to be checking wiring between the regulator and the battery. If I'm not, getting anything at that DC side of the regulator, then pull the A/C connector and test for A/C coming from the stator... If I am getting A/C in from the stator, but no DC out of the regulator... looks like I'm replacing the regulator... again.
If there's nothing or very little coming from the stator... crap.....
Here's from a 2001 Electrical Diagnostic Manual, should be the same as yours, I think.
Good catch Stiggy, forgot about the old stators being single phase
FWIW, had the exact same issue on a '01, with the connector from the stator not "locking" on the regulator (broken)... and "popped"/shorted a brand new regulator.
Last edited by Ssitruc; Aug 27, 2022 at 08:55 AM.
FWIW, had the exact same issue on a '01, with the connector from the stator not "locking" on the regulator (broken)... and "popped"/shorted a brand new regulator.[/QUOTE]
This sounds a lot like what happened to me, I will be going to get me a new voltmeter and going to do some tests on it this evening to see what I can find out, thanks for the help thus far everyone!
I went aftermarket 3 Phase Compufire for their complete new system and that unit was still charging strong 13 years (at 170,000 miles,) later.
(Cycle Electric is another good option. No more mixing and matching.)
Sounds like it is inermittent probably due to vibrations or heat. But I would try to go through the checks at home. easist thing to start with is DC volts at battery, should be 14.4 when revved up. If you are seeing 16 it does sound like volt reg. Loose wries at panel volt meter would not cause high votlages. The stock meter might not be the best. But I if it is spiking, I would be concerned.
Make sure the volt reg wires are tight. Make sure it is tight Harleys dump current to the frame, which is a week point,. CE claims there is betters because when not called for it opens up.
Regardless of anything else in the system, that volt reg should not allow 16 volts through. I'd like to see that 16 with a better meter though,
I think they designed as a system. In my experience if I have decide its the regulator on an oem bike, I put hd regulator. If I have to go into stator, I replace everything with Cycle electric kit.
The Best of Harley-Davidson for Lifelong Riders
Check voltage, resistance and OHMs at the stator plug.
If anything is wrong with these readings it's the stator.
Then check your ground AT THE VOLTAGE REGULATOR,
and output voltage at the battery.
At 1200 RPM's it should read 13.? to 14.5.
If not it's the regulator.
Make sure the stator to regulator plug is connected good.










