85 GL1200A Battery Discharging


Information and questions on GL1200 Goldwings (1984-1987)
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Nohands
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Motorcycle: 2006 GL1800 AC
1985 GL1200 Aspencade

85 GL1200A Battery Discharging

Postby Nohands » Wed Jul 04, 2012 8:59 pm



I have an 85 GL1200A and I seem to be having problems maybe with a Stator/Regulator? The battery tested good fully charged and when bike is running I have full electrical. However, the battery discharges but bike still runs with full electrics when dead.

Any suggestions? Where is Stator/Regulator?



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seabee_
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1977 Kawasaki kz400
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1980 Kawasaki GPZ400
1975 Honda CB360T

Re: 85 GL1200A Battery Discharging

Postby seabee_ » Wed Jul 04, 2012 10:16 pm

Is the battery good?
Have you tested it?
What is the volts at the battery at idle and higher rpms?
The regulator is located under the false tank on the left side. I don't remember if you have to remove the false tank or not to get to the regulator. Check all the plug connectors to the regulator and stator for any signs of burning/melting.
Paul
CE1 Navy Seabees/RET
1981 to 2002
ASE Mechanic

Ghostrider52005
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Location: Olive Hill Kentucky
Motorcycle: 1985 GL 1200 LTD, 1984 GL1200 Interstate, VS 700 Suzuki Intruder.

Re: 85 GL1200A Battery Discharging

Postby Ghostrider52005 » Wed Jul 04, 2012 11:47 pm

Been here done this :lol: , Get a digital voltmeter dc version is fine doesnt have to be expensive one. 1st start the bike, set voltmeter to 20 dc neg probe to neg battery post pos to pos. Rev the engine to 2500 3000 rpm. You should see between 13.6 to 14. 9 volts with the engine reved up at the battery.
If not move to the three yellow stator wires coming out of the back of the engine. simple test voltmeter neg probe to ground and pos to each yellow wire. each yellow wire should see 4 to 5 volts on each wire. if not stator is likely shot.
If stator looks good then check the wires at the regulator, three yellow, two red/white stripe, two greens. If they look burnt overheated or are stiff cut out the bad sections and put in new 12 guage wire soldering the connections not crimping them. IF that all checks out likely your regulator is bad.

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Nohands
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1985 GL1200 Aspencade

Re: 85 GL1200A Battery Discharging

Postby Nohands » Thu Jul 05, 2012 12:17 am

"Unread postby seabee_ » Wed Jul 04, 2012 11:16 pm
Is the battery good? :D
Have you tested it?" :D

Yes Battery is good but have not done many of the tests Ghostrider52005 suggested. :idea:

Thank you Ghost... I need to find a Voltage Tester...

The three yellow wires to stator I have redone because connecter melted, will have to get to it.

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SilverDave
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Re: 85 GL1200A Battery Discharging

Postby SilverDave » Thu Jul 05, 2012 8:51 am

Batteries are not " forever " things... and can test at a nominal 12 volts , even if almost dead ....

If you are going to do all the other tests... also think about removing the battery ... and take it to a pro battery shop for load testing ...

Thats the only way to know for sure .

Also gives you a golden opportunity to clean up the posts, connectors, and check the battery fluid levels...

and as long as you are searching for answers... it is worthwhile to do the " Three Part Stator Test ", to be sure its NOT the stator...
see here : five posts down ( by me ) :

viewtopic.php?f=5&t=10820

Sadly , this test requires cutting the stator wires, but then , after the test, you can hard solder the three yellow wires... which is highly recommended for all 1200's......


Good Luck
SilverDave

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Nohands
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1985 GL1200 Aspencade

Re: 85 GL1200A Battery Discharging

Postby Nohands » Thu Jul 05, 2012 2:28 pm

@SilverDave

Yes battery is good... Took it to a lace that has a battery tester and load tested it. :geek:

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Nohands
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1985 GL1200 Aspencade

Re: 85 GL1200A Battery Discharging

Postby Nohands » Sat Jul 07, 2012 9:20 pm

I think I have narrowed it down to the regulator, will retest tomorrow to double check. I ran out of daylight to work.

Any suggestions as to the best place to order a new one?

Ghostrider52005
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Motorcycle: 1985 GL 1200 LTD, 1984 GL1200 Interstate, VS 700 Suzuki Intruder.

Re: 85 GL1200A Battery Discharging

Postby Ghostrider52005 » Thu Jul 12, 2012 9:39 am

Unless your in a hurry Ill have one you can have in about a week or so. Poorboying my wifes 84I and wont need the regulator. Just have to run down the parts to make a poorboy.

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Nohands
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1985 GL1200 Aspencade

Re: 85 GL1200A Battery Discharging

Postby Nohands » Thu Jul 12, 2012 3:49 pm

To be honest at this point I am not 100% on the problem... The Radio and CB no longer work and I am in the process of removing all the electronics not necessary to operation. I don't listen to radio when riding anyway. Also I have a line on a wrecked Interstate if I pay the towing bill $400.00 However, don't throw away that regulator I may still need it :)

Poorboy?

Ghostrider52005
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Motorcycle: 1985 GL 1200 LTD, 1984 GL1200 Interstate, VS 700 Suzuki Intruder.

Re: 85 GL1200A Battery Discharging

Postby Ghostrider52005 » Thu Jul 12, 2012 4:43 pm

First check the three stator wires as close to the stator as possible. If your not getting 4 to 5 volts dc on each one its definitely the stator. If that checks good there are only so many things it can be. Either a dead cell battery. A bad regulator or bad wires.
The bike is going to run with full electrics like you said until it draws down to about 9 volts or so then it will just quit. A fully charged battery or a stator that is charging some but not what it should will run the bike a remarkably long time as long as you dont shut it down.
If the stator checks out and you just need to probe the wires not cut them and do a three part test to see if its bad, then check for burned stiff or brittle wires between the stator and regulator. And from the regulator on the two red with white stripe wires going back to the solinoid behind the battery.

If the stator is bad and charging even a little bit taking out radios and things will get the volts up some but the stator is on its way out at that point and wont take long to finish frying itself.

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Nohands
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1985 GL1200 Aspencade

Re: 85 GL1200A Battery Discharging

Postby Nohands » Thu Jul 12, 2012 4:56 pm

Thank you for info... Will work on it this weekend .

Ghostrider52005
Posts: 124
Joined: Sun Dec 20, 2009 7:19 pm
Location: Olive Hill Kentucky
Motorcycle: 1985 GL 1200 LTD, 1984 GL1200 Interstate, VS 700 Suzuki Intruder.

Re: 85 GL1200A Battery Discharging

Postby Ghostrider52005 » Fri Jul 13, 2012 10:46 pm

Poorboy is short for putting an external car alternator on the bike and doing away with the goofy stator regulator going out all the time. Honestly I have two 1200s LTD and 84, did the external conversion on the LTD at 80000 miles and should have done it when I first got it. Would have saved a lot of fighting a losing battle to save the stator.
Wifes 84 I took on a trip just for kicks last weekend since its a trike. 14.6 volts when i left 300 miles into the trip dead stator. :roll: I knew better than to trust a 1200 stator on a trip cuz ive seen to many of em go out usually about 40 to 60 thousand miles. So I guess burning up in 104 degree heat cutting wires tinkering charging etc to get just enough juice out of the thing to run the bike to get home I asked for :lol:

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Nohands
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Re: 85 GL1200A Battery Discharging

Postby Nohands » Sat Jul 14, 2012 3:17 am

Well... That brings me to my next question then; what is the cost and difficulty of doing this altenator conversion ?

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Phunnybone
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Re: 85 GL1200A Battery Discharging

Postby Phunnybone » Sat Jul 14, 2012 4:45 am

Anyone tried this alternator conversion? http://www.dupli-tech.com/goldwing-alternator-convertor.html

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Nohands
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1985 GL1200 Aspencade

Re: 85 GL1200A Battery Discharging

Postby Nohands » Sat Jul 14, 2012 7:59 am

I am going to attempt a Poorboy conversion... :D

However I have another problem, I think my front forks need rebuild; I removed fairing and took off the front air line and it appeared that there was fork oil in the air line!

Any guesses?

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Nohands
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1985 GL1200 Aspencade

Re: 85 GL1200A Battery Discharging

Postby Nohands » Sun Jul 15, 2012 2:55 am

Got frustrated Saturday afternoon and did something I probably should not have... Bought a 2006 GL1800AC Black w/trailer. A friend of mine works at Nicholson's in Ann Arbor and really worked hard to get me financing so I took the plunge.

For the time being I think I will keep the 1985 Aspy. and work on it throughout the summer as a project and eventually use it as work and putter around town bike.

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Nohands
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1985 GL1200 Aspencade

Re: 85 GL1200A Battery Discharging

Postby Nohands » Sun Jul 29, 2012 10:58 am

OK been gone a while, but, workin my ass off... OK I have purchased 2 multimeter from Radio Shack and they were both JUNK... Going to borrow my friends FLUKE from work this week and give it another shot; I know The FLUKE works because I actually got readings on it. 8-) Never going to purchase electronics from Radio Shack again. Heading to Granger in a few weeks and get a FLUKE.

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seabee_
Posts: 494
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Location: sterling heights, mi
Motorcycle: 1985 Honda Goldwing GL1200
117k miles
1977 Kawasaki kz400
1978 Suzuki GSXr750
1980 Kawasaki GPZ400
1975 Honda CB360T

Re: 85 GL1200A Battery Discharging

Postby seabee_ » Sun Jul 29, 2012 6:12 pm

Would you believe Harbor Freight has better low priced meters than the cheap Radio Shack ones? I've gotten quite a few of their cheap red ones free with any purchase and they're holding up pretty good.
Paul
CE1 Navy Seabees/RET
1981 to 2002
ASE Mechanic

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WingAdmin
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Re: 85 GL1200A Battery Discharging

Postby WingAdmin » Tue Aug 21, 2012 11:12 am

seabee_ wrote:Would you believe Harbor Freight has better low priced meters than the cheap Radio Shack ones? I've gotten quite a few of their cheap red ones free with any purchase and they're holding up pretty good.


Yup, those cheap little red meters work fairly well. For an extra dollar, you can get them with a backlit display. I've had a couple of them go bad with segments that stopped working in the display, so I just tossed them and spent another $5 for a new one the next time they were on sale. I carry one in my truck, bike, etc. - they're cheap enough to have everywhere. :)




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