How to test it with a meter? What to set it on and what volts should it be reading? thx
Hi Tom, the video is pretty good. but you can check another way.
Access your battery and start the engine, set your meter to DC 20 volt range if possible if not just DC volts. Connect the meter across the battery terminals if your reg/rectifier is working OK you should get about 13.5 volts at idle this should increase to about 14.5 volts at 4 to 5,000 rpm. In other words as you increase the revs from idle the voltage across the battery should increase until the regulator cuts in at which point the volts should remain fairly stable. Hope this helps and good luck..
SOURCE: Voltage Regulator Problem?
u want to chec alternator as well-ther r test u can do so buy a clymer manual which r very detailed-iv seen hd books in library sec 629
SOURCE: why is my 2006 street bob not charging
If the regulator was replaced and wasn't properly grounded it will not charge.
SOURCE: I have a 2003 Dyna
If you had your meter in AC VOLTS, and you only got three volts out of the stator, it's bad. Check for a shorted stator but putting your meter in OHMS R X 1. Put one probe on the engine case and then the other to one of the contacts and then to the other. You should read infinite ohms. 12.5 volts is the normal reading of a fully charged battery. I never do the shorted stator test. Why? If the stator is not putting out at least 30 volts at a high idle, it makes no difference if the stator is shorted or what, it needs replacing. That's the way I look at it.
Good Luck
Steve
SOURCE: i have a 2000 ultra
alternator and stator are pretty much part and parcel, i would check the rectifier first, its more common for them to fail than the alternator.
SOURCE: battery draws down during ride. volt meter reads
when running at bat use good vom 14 + volts .good bat volts non running 12.6 v .if not check wire to reg ..check that reg is grounded GOOD , bat in good shape ..them check for good assending voltage at stator plug. use ac setting on vom. 0-150 v will increase w/ rpms do not leave unplugged to long just to test..smell primary oil should not smell burnt I often replace reg & stator together.. harleytalking.com
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