Voltage Regulator.
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Joined: Mar 2021
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From: backwoods
You are squabling over two tenths of volt? Either you don't know, or you are grasping at straws. 14.4 is a typical number for many DC systems. Watch the video he even says 14.4. If the volt reg is bad, I suspect it will be bad more than two tenths of a volt.
This is kind of funny.
This is kind of funny.
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From: pacific northwest
The one spec I can not find is what is the output voltage direct from the alternator? I once had a Suzuki GS1000 fried a stator, the new ones if I remember specked 85-100 vac when working normal, but can,t find anywhere what the output voltage should be on the HD stator before entering the reg.
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Joined: Nov 2014
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From: Tomball, TX
Trying to get to get to the Voltage Regulator to just replace it is hard enough on a Rushmore with that water pump in the way, and I also have an oil cooler to tend with. I have known the staff there a long time and took there word for it, and the explanation they told me sounded legit. Anyways, The new regulator is on and everything is working just fine. One thing I did notice is that the meter is not fluctuating as much, staying right around 14. Thanks for all the feedback!
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From: backwoods
Depending on year around 20 volts ACish, give or take,per 1000 rpm. Myself I would rev it up and see it go around 70-80 volts ac
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From: Pennsylvania
The one spec I can not find is what is the output voltage direct from the alternator? I once had a Suzuki GS1000 fried a stator, the new ones if I remember specked 85-100 vac when working normal, but can,t find anywhere what the output voltage should be on the HD stator before entering the reg.
Step 5. Set the meter to read A/C volts higher than 30 volts (the scale setting for voltage should always be higher than the highest voltage you expect or you may fry the meter). Start the bike, and measure from one pin to the other on the plug (DO NOT cross the multimeter probes! - touch them to each other). You should read roughly 16-20 vac per 1,000 rpm.
Step 6. If the battery was good under load test, if the stator is NOT shorted to ground, and the stator is putting out A/C voltage, then the regulator is bad (most likely even if if passed step 2).
Generally the following is true:
22 amp system produces about 19-26 vac per 1,000 rpm, stator resistance is about 0.2 to 0.4 ohms.
32 amp system produces about 16-20 vac per 1,000 rpm, stator resistance is about 0.1 to 0.2 ohms.
45 amp system produces about 19-26 vac per 1,000 rpm, stator resistance is about 0.1 to 0.2 ohms.
NOTE:
The above information, while credible, is worth what you paid for it and should not be considered gospel.
Do due diligence, research and have a H-D Field Service Manual before working on your bike.
You will probably have many opinions and suggestions presented; make sure you research the person providing the helpful information as there are some who provide good information that is useful and some who speak out of other orifices with gibberish. You will figure out this quickly.
Last edited by CoolBreeze3646; Mar 29, 2024 at 06:47 AM.
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From: USA
Sorry, couldn't resist. I'll show my self out now.
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Joined: Sep 2009
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From: SE Michigan
Thats great - my only concern is that regulators don't fail that often, and that the replacement might work for a while and whatever might have caused two to fail has not been addressed and might cause this one to fail, but glad its fixed, and please ride safe!
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From: backwoods
People use to carry them on trips they used to be one of the weakest points on harley. They have gotten better but still fail.
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Joined: Sep 2009
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From: SE Michigan
I'm not saying they dont fail. I am saying that its not 1972 any more. The failure rate today is almost certainly orders of magnitude better than it was in 1972. I think its unusual for them to fail one after the other on a 2023 bike.
Last edited by Keithhu; Mar 29, 2024 at 11:27 AM.