Voltage Regulator is Overcharging

wawoodwa · 03-11-2015, 04:54 PM

Hello All!

We have been having fun with my son's 125cc ATV. However, we have run into a problem. The bike is overcharging. I tried replacing the voltage regulator, but I get the same results. Over 15v at idle and up to 17v mid-rpm. I have read where it could be the stator (which doesn't make sense to me, how does it overcharge as a failure mode?) or the battery. The regulators are the 4 pin model. I do not know how to test them independently.

Has anyone else run into a similar problem?

lee47512 · 03-12-2015, 09:39 AM

Sounds like the regulator rectifier to me. I have never heard of a stator throwing to many volts that is what the rr is for.

Weldangrind · 03-12-2015, 10:12 AM

I would agree. Is the replacement identical?

wawoodwa · 03-13-2015, 01:20 AM

Thanks all.

Identical in form. Not sure in function. It is a 4 pin, but I have no way of knowing with these things. They are super cheap.

I am considering finding a better one with wires and a pinout so I can wire it myself to make sure. Any suggestions on that front?

humanbeing · 03-13-2015, 01:46 AM

4-pin are NOT build equal
ALL DC
https://translate.google.com/transla...asp%3Fpid%3D37
---
AC light
https://translate.google.com/transla...asp%3Fpid%3D31

wawoodwa · 04-08-2015, 12:38 PM

Thanks all,

It is an AC/DC bike and regulator. Does anyone have a line on a good replacement? I could just have a lot of junk regulators.

Tvnacman · 04-12-2015, 04:49 PM

Quote:

Originally Posted by wawoodwa

Thanks all,

It is an AC/DC bike and regulator. Does anyone have a line on a good replacement? I could just have a lot of junk regulators.

can you post a few pics of the following and answer a few questions, then I can help.

lets see the original regulator, the stator plug. Tell me about the lighting is it ac or dc(can you put lights on without without the engine running?

03-11-2015, 04:54 PM	#1
wawoodwa Join Date: Dec 2014 Location: TN Posts: 5	Voltage Regulator is Overcharging Hello All! We have been having fun with my son's 125cc ATV. However, we have run into a problem. The bike is overcharging. I tried replacing the voltage regulator, but I get the same results. Over 15v at idle and up to 17v mid-rpm. I have read where it could be the stator (which doesn't make sense to me, how does it overcharge as a failure mode?) or the battery. The regulators are the 4 pin model. I do not know how to test them independently. Has anyone else run into a similar problem?
	0

03-12-2015, 09:39 AM	#2
lee47512 Join Date: Jun 2014 Location: Bicknell Indiana Posts: 120	Sounds like the regulator rectifier to me. I have never heard of a stator throwing to many volts that is what the rr is for. __________________ Lee 2014 powermax 150. 2015 Hawk 250. Poop happens
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03-12-2015, 10:12 AM	#3
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I would agree. Is the replacement identical? __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
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03-13-2015, 01:46 AM	#5
humanbeing Join Date: Mar 2008 Posts: 2,436	4-pin are NOT build equal ALL DC https://translate.google.com/transla...asp%3Fpid%3D37 --- AC light https://translate.google.com/transla...asp%3Fpid%3D31 __________________
	0

03-13-2015, 01:20 AM	#4
wawoodwa Join Date: Dec 2014 Location: TN Posts: 5	Thanks all. Identical in form. Not sure in function. It is a 4 pin, but I have no way of knowing with these things. They are super cheap. I am considering finding a better one with wires and a pinout so I can wire it myself to make sure. Any suggestions on that front?
	0

04-08-2015, 12:38 PM	#6
wawoodwa Join Date: Dec 2014 Location: TN Posts: 5	Thanks all, It is an AC/DC bike and regulator. Does anyone have a line on a good replacement? I could just have a lot of junk regulators.
	0