Is my stator bad


Information and questions on GL1200 Goldwings (1984-1987)
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SAILOR
Posts: 117
Joined: Sat Jan 01, 2011 11:24 am
Location: lakewood,wa
Motorcycle: 1984 honda goldwing

Is my stator bad

Postby SAILOR » Mon May 26, 2014 9:43 pm



I'm guessing my stator is bad on my 1984 GL1200. Here is what I know. When I disconnected my stator from the regulator/rectifier, and then I read the voltage between the yellow wires this is what I get:

A and B 19.9
B and C 23.0
C and A 2.7

What do you think? Reason I'm testing is because my voltage at the battery is below 12 volts when it is runn.

Do I have a bad stator?



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flash2002
Posts: 178
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Location: Montreal, Canada
Motorcycle: gold wing 1800
2003

Re: Is my stator bad

Postby flash2002 » Tue May 27, 2014 7:19 am

Look at this, might help.




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virgilmobile
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Motorcycle: 1988 GL1500 I
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Re: Is my stator bad

Postby virgilmobile » Tue May 27, 2014 9:56 am

When I measured mine unhooked and the bike at 1000 rpm,it read equal voltage between each of the 3 pairs.
It measured 25 volts AC....No load...unhooked.
If your measurements are under the same conditions,the stator is bad.
You may find some continuity to ground (bad) and different coil resistance also bad.
They should be the same.Somewhere around 5 ohms each set.

SAILOR
Posts: 117
Joined: Sat Jan 01, 2011 11:24 am
Location: lakewood,wa
Motorcycle: 1984 honda goldwing

Re: Is my stator bad

Postby SAILOR » Tue May 27, 2014 2:53 pm

I've already done the Steve Saunder video test and got around 6 volts on all three wires.

Thought the A-B, B-C, C-A wire test was supposed to be performed with the bike above 3000 RPMs, since the stator start outputting until there is a load on the bike.

As for continuity. My volt meter is flaky and when I have it on OHM setting I'm not sure I trust the readings. But I will check it again and post those here.

I'd really like to confirm it is the stator before tearing the bike apart, sounds like a real pain to pull engine.

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virgilmobile
Posts: 7646
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82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Is my stator bad

Postby virgilmobile » Tue May 27, 2014 3:19 pm

SAILOR wrote: Thought the A-B, B-C, C-A wire test was supposed to be performed with the bike above 3000 RPMs, since the stator start outputting until there is a load on the bike.


On my 1200...stator wires unhooked...AC voltages varied from (around) 25 VAC at 1000 rpm to 75 VAC at 3500 rpm(unloaded stator)....
If I remember correctly,I measured 12 volts AC between each set of coils after they were attached to the regulator module(loading the stator)....and a clamp on AC amp meter showed 7 amp on each yellow wire at 3k rpm.
Don't get too concerned about the exact readings...Meter readings may differ than yours...
Measure resistance to ground from any yellow wire...There should be none...no continuity..infinite..nada....
Each "pair" of wires should have the same resistance...Somewhere around 5 ohms....each meter may differ in readings....
One of mine actually shows 0.0 ohms on a good stator and 6 meg. (million) ohms to ground...
That's why I measure stator AC volts...Then measure the 6 diodes in the regulator block....

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WingAdmin
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Re: Is my stator bad

Postby WingAdmin » Tue May 27, 2014 9:47 pm

That video really should be discounted, it shows the WRONG way to test your stator, and the results will vary depending on the type of meter you have. The only correct way to check your stator is to have your meter in AC Volts mode, and check between each pair of yellow wires, which it sounds like you have done. From your results, it looks like one of the windings in your stator is bad.

SAILOR
Posts: 117
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Location: lakewood,wa
Motorcycle: 1984 honda goldwing

Re: Is my stator bad

Postby SAILOR » Tue May 27, 2014 11:08 pm

So how do I check the continuity of the wires. Will a simple light tester do? My volt meter on the ohm settings reads really weird and I had to trust that. I'm about ready to pull the engine out, but it sounds like a lot of work. Anyone know where I should be an aftermarket stator?

wing86new1
Posts: 37
Joined: Thu Oct 17, 2013 7:45 am
Location: Notre Dame, Indiana
Motorcycle: 1986 goldwing aspencade sei
and 1978 gl1000

Re: Is my stator bad

Postby wing86new1 » Wed May 28, 2014 6:36 am

you cant use a test light for that type of test, I just did this job on my 86 sei, the proper test is to test the wires coming from the stator disconnected from the bike while running (I cheated the battery by using a charger on it while I did this test) at idle it produced (before the change) 35v 34v 6v. this is measured in ac volts- sounds like your stator . after it was about 37 on all 3 wires. as I learned you cannot test when the wires are actually hooked up it gives you a false indication.

Just follow the instructions on how to pull the engine from the internet, the only thing I did differently is to do this job off the center stand on the ground. Since I work alone I used a atv jack to assist with the removal of the engine, I also replaced the clutch plates while it was out, it was due anyway but I figured why re-pull when I have it out.

the original owner of the bike had way too many lights on it and had overloaded it.
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WingAdmin
Site Admin
Posts: 17045
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Is my stator bad

Postby WingAdmin » Wed May 28, 2014 12:13 pm

The other option is of course a Poorboy external alternator conversion, and just abandon the internal stator.

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bassmaster42
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Location: somerset,wi
Motorcycle: 1985 gl1200 interstate

Re: Is my stator bad

Postby bassmaster42 » Fri Jun 06, 2014 10:35 pm

i am replacing my stator, and clutch since engine will be out, is there a big difference between the honda stator and the off brand one i cant remember what the name is my mechanic told me but there was a 100.00 different in price. has anyone heard of any bad things about the off brand one???

wing86new1
Posts: 37
Joined: Thu Oct 17, 2013 7:45 am
Location: Notre Dame, Indiana
Motorcycle: 1986 goldwing aspencade sei
and 1978 gl1000

Re: Is my stator bad

Postby wing86new1 » Mon Jun 09, 2014 6:51 am

I used a ricks stator from ricks motorsports. it is the most recommended one on the forums. it is well built and uses heavy winding wire, some of the cheaper ones or the ones that claim to produce more amperage use smaller winding wire and will burn out quick




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