rectifier/stator question


Information and questions on GL1200 Goldwings (1984-1987)
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izzyh1957
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Joined: Mon Apr 05, 2010 7:23 pm
Location: Baton Rouge, La.
Motorcycle: 1985 gl1200A

rectifier/stator question

Postby izzyh1957 » Mon Jul 26, 2010 12:27 am



During a recent trip from Baton Rouge to St. Louis, I lost electrical power. Upon checking, my battery was completely dead. I need to know what to check for, how do I check the stator and rectifier to determine wich one to replace?, what voltage readings do I look for in order to know where the problem is originated from. any guidance will be appreciated.



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MJSantos
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Re: rectifier/stator question

Postby MJSantos » Mon Jul 26, 2010 10:30 am

Over in the NGW Forum they have a very good troubleshooting tech for stators
http://www.ngwclub.com/forum/viewtopic.php?f=8&t=27215

The three areas are discussed. Checking out the stator for output voltage, cutting the plug off of the yellow wires which is prone to breaking down. and finally the regulator.

Check it out.

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izzyh1957
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Re: rectifier/stator question

Postby izzyh1957 » Mon Jul 26, 2010 5:40 pm

Thanks I'll check it out.

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izzyh1957
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Re: rectifier/stator question

Postby izzyh1957 » Thu Jul 29, 2010 8:02 pm

ok , here is what I got. I found a yellow stator wire corroded, I repaired it . I installed my batt and let the bike run for a while, it run the batt down to the point it could not start the bike, that was last nite. I come out today and turn the key the bike started like if I had the batt charged overnite. I kill the engine and got a reading og 12.1 volts, I start the bike got the idele to 3000 rpm for about 5 min. and now I got a reading of 12.3. Let it run for a few minutes killed it and when I try to start it again, it did not have enough charge, 11.9 volts. If any of you can make sense of what's going on please shine the light on me, couse I'm in the dark here, deep dark!!!

Oldsmores
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Motorcycle: 1984 GL1200A Aspencade, 1984 Magna VF700C (now my son's)

Re: rectifier/stator question

Postby Oldsmores » Fri Jul 30, 2010 7:51 am

1. Take the battery to Advanced Auto Parts, Autozone, or someplace similar. They will test it for free and let you know if the battery is bad.
2. If the battery is OK, charge it and put a Digital Volt Meter directly on the pos and neg battery terminals. Should get close to the following:
Engine off key off 12.6+ v a fully charged battery should be as high as 12.8+ v
Engine at idle key on 13.2 to 13.5 v
engine at 2500 to 3000 rpm 14.2 v
If you get these voltages then your charging circuit is fine. If not, you need to check the stator output and the regulator/rectifier.
3. for the stator, look at the link in this thread:
http://www.goldwingdocs.com/forum/viewtopic.php?f=16&t=3117&p=11253&hilit=stator#p11253
4: for the regulator/rectifier there's a simple continuity check described in the manual. I don't have it handy, but maybe somebody else can chime in

goldtr6c
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Motorcycle: 1985 GL1200 LTD
1982 GL1100 STD
1976 GL1000 "800lb Canary"

Re: rectifier/stator question

Postby goldtr6c » Fri Jul 30, 2010 2:39 pm

A lot of the Gl1200s have charging problem and it is usualy bad connectors or a bad battery. I have ended up hard soldering all the wires leading from my stator AND regulator. I even found the ground cable from my battery to the frame to have a bad crimp/solder job on it from the factory. That problem cropped up when I was in the the middle of nowhere in Texas, 30m to the nearest town.

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izzyh1957
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Re: rectifier/stator question

Postby izzyh1957 » Fri Jul 30, 2010 4:35 pm

ok, I'll work on it and let you know what I come up with. thanks

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WA9FWT
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Re: rectifier/stator question

Postby WA9FWT » Sun Aug 01, 2010 3:02 pm

goldtr6c wrote:A lot of the Gl1200s have charging problem and it is usualy bad connectors or a bad battery. I have ended up hard soldering all the wires leading from my stator AND regulator. I even found the ground cable from my battery to the frame to have a bad crimp/solder job on it from the factory. That problem cropped up when I was in the the middle of nowhere in Texas, 30m to the nearest town.

I hope you didn't have to push it for 30 miles for a fix. How did you get it going? What bike did this happen too.

WA9FWT Phil

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izzyh1957
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Re: rectifier/stator question

Postby izzyh1957 » Sun Aug 01, 2010 4:22 pm

My friend and I, we both ride 85's, his is an interstate and I, an aspencade. We drove about 30 miles at a time and then stop and switch batterires since his bike was running coorectly. We did this about 5 times or so, until we got back to the hotel. It was a long ride back but we manage to switch batteries faster each time. when there is a "will" there is a way.

I haven't had chance to work on the bike, the temp is 95 and I think I'ii wait until later this evening to get started. I'm going to soder the yellow wires and check my voltage.

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WA9FWT
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1975 Cb750K sold

Re: rectifier/stator question

Postby WA9FWT » Sun Aug 01, 2010 4:47 pm

izzyh1957 wrote:My friend and I, we both ride 85's, his is an interstate and I, an aspencade. We drove about 30 miles at a time and then stop and switch batterires since his bike was running coorectly. We did this about 5 times or so, until we got back to the hotel. It was a long ride back but we manage to switch batteries faster each time. when there is a "will" there is a way.

I haven't had chance to work on the bike, the temp is 95 and I think I'ii wait until later this evening to get started. I'm going to soder the yellow wires and check my voltage.


Smart move on your part, switching batteries. Just the other day while i was sitting eating chicken on a bench, a fellow came out after fueling to start his wing when it was dead as can be.I went over to help,and asked him to start checking the fuse's.his replay was were are they !! Well, we checked all for him and I hooked up a jumper from my SUV to his battery for about 10 minutes.That didn't even turn over the engine. I then gave him a hand push, and it started.I told him when and if it stalls on the way home to swith batteries with the other fellow he was with.All I remember as he rode off, very fast !! was Thanks Friend!!

Good luck on your problem, i'm sure you will find it. WA9FWT Phil
WA9FWT Phil

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izzyh1957
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Re: rectifier/stator question

Postby izzyh1957 » Wed Aug 11, 2010 9:00 pm

I finally got around to checking the stator wires, one was corroded apart, the second covered with corrosion and the last one was ok. I sodder the wires and it looks like the stator had it. I can only get 12.5 @ 3000 rpm. I guess I'm going to install the poor man kit. I emailed Don Pigott, in order to buy a kit from him, I'm waiting on his reply. If anyone has one for sale please let me know. There is a listing on Ebay for the brackets for $300 and another from the same seller for $600, no alternator, just the mounting brackets. As much as I love to ride, I think I'm gonna wait until I find the kit for a more affordable price.

thanks to all of you that provided great suggestions and comments as to what to do. I'll keep you posted.

goldtr6c
Posts: 147
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Location: Hitchcock, Tx
Motorcycle: 1985 GL1200 LTD
1982 GL1100 STD
1976 GL1000 "800lb Canary"

Re: rectifier/stator question

Postby goldtr6c » Thu Aug 12, 2010 1:12 am

Check also the wires coming from the regulator. There is one, I forget the color (green, brown?) that monitors the voltage. If that connector is is dirty or broken, it can give you problems also. I got tired of fighting the connector problems and hard soldered all wires leading from the stator and reg.




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