charging problems


Information and questions on GL1200 Goldwings (1984-1987)
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reds919hornet
Posts: 4
Joined: Sat Aug 11, 2012 8:54 am
Location: Alpharetta, Georgia
Motorcycle: 1985 gl1200 ltd

charging problems

Postby reds919hornet » Sat Aug 11, 2012 9:36 am



hi everone, new to the forum. just needing some help with a charging problem on an 85 gl 1200 ltd. let me start by saying that i am an ase cert. tech. on cars and that i have been servicing bikes for a few years helping friends and all.

i have a clymer and haynes manual for this bike and have been through the tests that they show. the stator ohms out fine according to both books. the regulator ohmed out bad according to both books. i got a new aftermarket regulator but still not charging. i tested it and it also tested bad. the factory regulator is no longer avalible.

my question is are my manuals right on the tests for the regulator? it is a basic diode test if i am reading it right but if i am thinking right it is saying my current flow is backwards. they are saying neg. test lead to green wire(ground wire) pos test lead to yellow(charge stator wire) and there should be little resistance(makes me think charging to ground). then it says reverse test leads and should be no continuity. which means ground can not reach stator coils which sounds fine. then connect pos test lead to red/white wire(battery pos wire) and neg test lead to yellow wire and no resistance which says battery voltage can reach stator(sounds good). then it says to reverse test leads and should be no continuity which tells me that the charge from the stator can not reach the battery. now both regulators test backwards from this which is another reason i think my books are wrong.

in one book it also give an ac voltage test for the 1984 bike only because of some problem that honda had out of the stator assemblies. i would think that all stators should test close to the same but if i am testing right i am coming up about 40 volts short on my 85 as to what the book says about the 84. can anyone help me?

thanks for taking the time to read this long post from a newbie but any help i can get i am truly thankful for.



reds919hornet
Posts: 4
Joined: Sat Aug 11, 2012 8:54 am
Location: Alpharetta, Georgia
Motorcycle: 1985 gl1200 ltd

Re: charging problems

Postby reds919hornet » Sat Aug 11, 2012 9:39 am

also hope i posted this in the right area. if not sorry.

User avatar
virgilmobile
Posts: 7660
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: charging problems

Postby virgilmobile » Sat Aug 11, 2012 10:47 am

I'm available this whole weekend to chat on the phone.PM me with a number or I can provide mine.
I own a 1200 that I have been through.I know the innards of them personally.No "in theory" this time.

reds919hornet
Posts: 4
Joined: Sat Aug 11, 2012 8:54 am
Location: Alpharetta, Georgia
Motorcycle: 1985 gl1200 ltd

Re: charging problems

Postby reds919hornet » Sun Aug 12, 2012 8:11 pm

@virginmobile. thanks for the call and help. sorry if i sounded a little distracted, i had several people around at the time.

i finally got a minute to run a couple of more test just a few minutes ago and this is what i found ac voltage on 2 of the legs of the stator were putting out around 13 volts ac @1700 rpm and increased to around 30 volts @ 5500 rpm. the third leg was only putting out around 3 to 4 volts no matter what the rpm. that was testing at the regulator plug or down close to the stator where the factory plug was cut out.

still clueless

User avatar
virgilmobile
Posts: 7660
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: charging problems

Postby virgilmobile » Sun Aug 12, 2012 8:24 pm

was that with the regulator unplugged?

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virgilmobile
Posts: 7660
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: charging problems

Postby virgilmobile » Sun Aug 12, 2012 8:42 pm

if it was with the regulator hooked up unplug it and test again.a bad regulator could show low AC volts.If the Volts are still low the stator is bad.

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saltmar14
Posts: 48
Joined: Thu Apr 19, 2012 11:28 am
Location: Las Vegas, Nevada
Motorcycle: 2004 gl1800 1985 gl1200 limited edition
1982 cm250c

Re: charging problems

Postby saltmar14 » Sun Aug 12, 2012 11:51 pm

i got my replacement reg/rec from http://www.regulatorrectifier.com/catal ... -Rectifier it was an oem that was supposed to be upgraded from original.

have you checked the yellow wire connectors from the stator and the ones by the reg/rec? comon proublem on the ltd, if not already done cut out the connectors and solder the wires together. mine were melted to the gas tank.

if the stator is bad you have to pull the engine to replace. many ltd owners are replacing them with an external altanater called a poor boy conversion. it mounts under the faring.

reds919hornet
Posts: 4
Joined: Sat Aug 11, 2012 8:54 am
Location: Alpharetta, Georgia
Motorcycle: 1985 gl1200 ltd

Re: charging problems

Postby reds919hornet » Mon Aug 13, 2012 5:53 am

that was regulator unplugged setting on the seat.

where can i find the poor boy conversion alternator?

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saltmar14
Posts: 48
Joined: Thu Apr 19, 2012 11:28 am
Location: Las Vegas, Nevada
Motorcycle: 2004 gl1800 1985 gl1200 limited edition
1982 cm250c

Re: charging problems

Postby saltmar14 » Mon Aug 13, 2012 9:51 pm

sent PM. on poorboy conversion

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feetup
Posts: 100
Joined: Mon Jun 29, 2009 1:15 pm
Location: West Coast of Canada
Motorcycle: 84 GL 1200I
75 GL 1000 (in pieces)
'02 Gas Gas Trials
'56 Norton 600

Re: charging problems

Postby feetup » Tue Aug 14, 2012 11:06 am

Ultimately the stator, or even a replacement stator, is likely to fail.
The regulator is of the shunt type, simply dumping excess current to ground, essentially turning it to heat. A very inefficient system at best.
A great deal has been written about this system on the net, and very little of that is in praise of the concept. The regulator lives in a hot environment and produces a huge amount of heat itself. The stator lives in a hot oily, acidic location and continually produces all the current it can at any given RPM.
The external alternator, now dubbed the "poorboy" conversion after the user name of the man who produces effective kits, is a very usable alternative, and while it permanently alters the bike in two places it seems to be well worth it.
My charging system was going strong, but I added the external alternator anyway as a far more efficient way to make electrical power. I didn't use "poorboy's" kit, as I have an adequate hobby machine shop at home, but I think the kit is well worth the money, and I patterned my conversion after his.
We run two electric vests, 55 watt driving lights, and a lot of other extra lights around the bike, but seldom drop below 13.7 volts at idle and 14+ at anything above 1200RPM. To make it better, What I don't use, the alternator doesn't bother to make, unlike the stock system.
The only negative thing I can say is that the alternator has it's own sound, a bit of a whine, that seems to sit on top of all the other rattles, whines and clatters that are going on in the transmission.

Certainly it is your choice, but the little Suzuki alternator works very, very well, and even a new stator and regulator is no guarantee that you will not have a failure in the future. Almost every city will have a replacement alternator and belt for the conversion, and it could be changed at the side of the road or in front of your motel room.

Feetup




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