charging questions


Information and questions on GL1200 Goldwings (1984-1987)
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tech1
Posts: 181
Joined: Fri Jun 18, 2010 8:21 pm
Location: East Moline IL
Motorcycle: 1986 Goldwing 1200 SE-i Aspencade
2009 audo comfort
GL1800

charging questions

Postby tech1 » Fri Mar 16, 2012 5:23 pm



Hi everyone
My 86 SEi charges 14.4 volts at first start up and then drops of. But if i shut it off and restart it it starts charging again 14+ volts for a while. The stator connetor has been removed The regulator get HOT quickly!
Any ideas? Time for a poorboy?
Thanks Tech1



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virgilmobile
Posts: 7663
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 questions

Postby virgilmobile » Fri Mar 16, 2012 7:14 pm

Just check the water level in the battery and ride it.
Your voltages are about normal.
The voltage change is normal after draining the battery from cranking.
As long as the volts stay between 12.5 and 14.8 while running between 1500 and 3500 rpm.it's a non issue.
The regulator is a shunt device.Excess unneeded current that the bike or battery dosen't need has to be dissipated somewhere so the regulator it is.
That's why it's got such a large heat sink on it.After 10 minutes I can't touch either of mine.
If the volts go higher than 15 volts,there is a problem.just as much as too low a voltage while running like 11.5 voltss.

User avatar
tech1
Posts: 181
Joined: Fri Jun 18, 2010 8:21 pm
Location: East Moline IL
Motorcycle: 1986 Goldwing 1200 SE-i Aspencade
2009 audo comfort
GL1800

Re: charging questions

Postby tech1 » Sat Mar 17, 2012 8:56 am

Hi Virgilmobile
No when I said it drops i mean it goes to 11.3 to 11.7 Yea I am a auto tech for the past 25 years. I know that is too low. I was looking for known problems if known. investgating today
I will post what I find
tech1

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virgilmobile
Posts: 7663
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 questions

Postby virgilmobile » Sat Mar 17, 2012 11:46 am

Ok.The charging is actually quite simple.A giant magnet spins outside a set of coils,producing 3 phase AC.
The 3 yellow wires should measure very low ohms between each other but nothing to ground.
When unplugged from the regulator it will produce about 30 VAC between any 2 legs at a idle.
The regulator/rectifier it 6 diodes,so a standard diode test can be done.
The regulator circuit in the housing is controlled by the ignition wire.
When the volts reach the cutoff point it shunts one of the yellow wires to ground.This controls the output.
Here's a schematic to help.
The bike normally draws about 10 amp to run it,leaving near 15 amp left over to charge the battery.

User avatar
tech1
Posts: 181
Joined: Fri Jun 18, 2010 8:21 pm
Location: East Moline IL
Motorcycle: 1986 Goldwing 1200 SE-i Aspencade
2009 audo comfort
GL1800

Re: charging questions

Postby tech1 » Sun Mar 18, 2012 11:05 am

A quick up date it seems to be charging now BUT wont hardly run! When it rains it pours!!
Tech1

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virgilmobile
Posts: 7663
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 questions

Postby virgilmobile » Sun Mar 18, 2012 12:39 pm

Look at the admin's posts."a good nights work".If it's not one thing it's another.I think the wings just get lonely :)

User avatar
tech1
Posts: 181
Joined: Fri Jun 18, 2010 8:21 pm
Location: East Moline IL
Motorcycle: 1986 Goldwing 1200 SE-i Aspencade
2009 audo comfort
GL1800

Re: charging questions

Postby tech1 » Thu Mar 29, 2012 6:50 pm

Well good news! I replaced the retifier regulator and it is charging good. And running good.
Thanks tech1

DRDIESEL77
Posts: 8
Joined: Sat Oct 08, 2011 10:20 am
Location: Bellevue, NE
Motorcycle: 1984 GL1200A Aspencade
1977 GL1000
1986 Suzuki GS550L

Re: charging questions

Postby DRDIESEL77 » Tue Apr 10, 2012 1:29 pm

I have a similar problem with my 84 gl1200a. I checked the battery volts and only had 11.4 volts with the bike running. I checked the stator plug and only found that it was putting out only 4-6 volts ac between any of the 3 wires. I also checked the regulator as stated in the manual but when testing the wires stated, every wire showed open when tested with a ohm meter. Any susgestions as to what might be the problem.

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virgilmobile
Posts: 7663
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 questions

Postby virgilmobile » Tue Apr 10, 2012 2:15 pm

It's possible both are bad.first unhook the 3 stator wires and measure the resistance between each pair of 3 wires and then to ground.each coil is low resistance,almost looks like a dead short.I think it's about 3 Ohms or so and no resistance to ground from any yellow wire.
When the stator is unplugged from the regulator,my 1200 will produce about 40 volts AC at 1000 rpm.
Test this first.if you get good AC, then the regulator is bad.if the AC is low,both need to be replaced.
Also,this is assuming the 3 prong plug with the yellow wires next to the battery are good or replaced.

DRDIESEL77
Posts: 8
Joined: Sat Oct 08, 2011 10:20 am
Location: Bellevue, NE
Motorcycle: 1984 GL1200A Aspencade
1977 GL1000
1986 Suzuki GS550L

Re: charging questions

Postby DRDIESEL77 » Tue Apr 10, 2012 2:30 pm

When I tested the stator wires I only had maybe 2 ohms resistance and open to ground, mo resistance to ground. Again I only had maybe between 4-6 volts AC with the 1200 running. I followed the troubleshooting in section 8 of the cylmer manual and I think that more than likely, both are bad I wanted a second opnion. Thanks

User avatar
virgilmobile
Posts: 7663
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 questions

Postby virgilmobile » Tue Apr 10, 2012 7:23 pm

Ok.on my 1200 when the good regulator is hooked up,at 1000 rpm, the stator puts out about 11 volts AC.
So re-test the stator with it cut loose from the rest of the bike.if it still is low volts,that will confirm the stator is cooked.

sparkyman
Posts: 38
Joined: Mon Apr 16, 2012 8:26 pm
Location: gaines michigan
Motorcycle: 2008 1800 comfort pkg, navigation

Re: charging questions

Postby sparkyman » Mon Apr 16, 2012 8:42 pm

hello I am having a similar problem with my wing but it seems to work fine until I increase the load like turning on my hi beam then the voltage drops below 12 at idle I have done the soldering at the voltage regulator and the connector next to the battery not sure what's wrong.

User avatar
virgilmobile
Posts: 7663
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 questions

Postby virgilmobile » Tue Apr 17, 2012 8:34 am

sparkyman wrote:hello I am having a similar problem with my wing but it seems to work fine until I increase the load like turning on my hi beam then the voltage drops below 12 at idle I have done the soldering at the voltage regulator and the connector next to the battery not sure what's wrong.


Nothing wrong.***At a idle***,my 1100 and 1200 start to discharge the battery with all the lights on.When the rpm is increased to around 2500,it stabilizes above 13.8 volts(measured at the battery posts).As long as the system is charging the battery at 2500 rpm or so,you have a normal bike.

sparkyman
Posts: 38
Joined: Mon Apr 16, 2012 8:26 pm
Location: gaines michigan
Motorcycle: 2008 1800 comfort pkg, navigation

Re: charging questions

Postby sparkyman » Tue Apr 17, 2012 9:46 am

Thanks for the reply but my battery is still dropping to about 70 percent after a 50 mile ride or so. I plan to change the fuse to an auto type an rewire the silinoid plug as soon as i get time think i still have a bad connection some place.

User avatar
virgilmobile
Posts: 7663
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 questions

Postby virgilmobile » Tue Apr 17, 2012 1:52 pm

Direct solder the 3 yellow wires too.There to the left of the battery,and check all the wires on the plug that goes to the regulator,they are subject to corrosion.

sparkyman
Posts: 38
Joined: Mon Apr 16, 2012 8:26 pm
Location: gaines michigan
Motorcycle: 2008 1800 comfort pkg, navigation

Re: charging questions

Postby sparkyman » Tue Apr 17, 2012 5:01 pm

thanks again for the reply I have already hardwired the regulator and the yellow plug also checked voltage and ohms on the stator before hardwireing it checked out fine I will let u know what happens after I change the main fuse and hard wire the two red wires on the slinoid plug .thanks again.

sparkyman
Posts: 38
Joined: Mon Apr 16, 2012 8:26 pm
Location: gaines michigan
Motorcycle: 2008 1800 comfort pkg, navigation

Re: charging questions

Postby sparkyman » Tue Apr 17, 2012 7:19 pm

well bad news I just tested my stator again and had continuitybetween all three yellow wires and none to ground but did the voltage check and between wires 1 and 2 only got 12 volts at 3500 rpm the meter was jumping all over the place. I only got 38 volts between the other wires so I guess its time for a poor boy conversion . I don't really like the idea but don't really want to pull the engine any advice would be great thanks. I have only had the bike for two weeks it has 59000 on it and I paid 2 grand feellke I got took.

DRDIESEL77
Posts: 8
Joined: Sat Oct 08, 2011 10:20 am
Location: Bellevue, NE
Motorcycle: 1984 GL1200A Aspencade
1977 GL1000
1986 Suzuki GS550L

Re: charging questions

Postby DRDIESEL77 » Tue Apr 17, 2012 9:14 pm

Were you checking the voltage on the AC or the DC setting on the meter. The reading will jump around and give you a false reading if you are measuring AC volts on the DC setting. When i rechecked my 84 Aspy's stator i found it was shorted to ground. I just pulles the engine back out of the bike this morning at 3 am( couldn't sleep) and it only took about 2 hours. The price you paid for the bike is fairly reasonable and if you have some basic knowledge then it won't be to bad of a project. You can find new stators on ebay for about 120-150.

sparkyman
Posts: 38
Joined: Mon Apr 16, 2012 8:26 pm
Location: gaines michigan
Motorcycle: 2008 1800 comfort pkg, navigation

Re: charging questions

Postby sparkyman » Wed Apr 18, 2012 4:49 am

Well this is my firs wing and I haven't. owned a bike in 15 years but I am not afraidof the work. I was wondering why u are not doing the poor boy.I am not.sure what I want to do I am not thrilled about it myself I like to keep things stock. I was on the AC setting when I checked it.

sparkyman
Posts: 38
Joined: Mon Apr 16, 2012 8:26 pm
Location: gaines michigan
Motorcycle: 2008 1800 comfort pkg, navigation

Re: charging questions

Postby sparkyman » Wed Apr 18, 2012 1:14 pm

dose any one have a idea of what brand of stator i should use on my 84 wing i have decided to pull the engine put on new belts water pump and cluch any advise would be great thanks.

User avatar
virgilmobile
Posts: 7663
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 questions

Postby virgilmobile » Wed Apr 18, 2012 4:22 pm

I'm a fan of OEM. It did last over 20 years.and without overloading a replacement should last just as long or longer with the wiring mods.there is someone that offers a heavy duty one.I think to has better wiring and insulation.

sparkyman
Posts: 38
Joined: Mon Apr 16, 2012 8:26 pm
Location: gaines michigan
Motorcycle: 2008 1800 comfort pkg, navigation

Re: charging questions

Postby sparkyman » Wed Apr 18, 2012 7:21 pm

Thanks for the info I started on it tonight . I have to look on the web to see if I can find one I don't think I need a new water pump just a seal kit if I run it on the side kick stand it leaks out the weep hole about a teaspooneveey once in awhile but since I will have it apart I think I should check it out I want to ride this season with now worries. H hope your project is going well.!

sparkyman
Posts: 38
Joined: Mon Apr 16, 2012 8:26 pm
Location: gaines michigan
Motorcycle: 2008 1800 comfort pkg, navigation

Re: charging questions

Postby sparkyman » Wed Apr 18, 2012 8:32 pm

Well its me again I have a few more questions I found a stator on eBay says its heavy duty 20% more output 1 year warranty made by niche wonder if it was any good also dose it mater if u mix up the three yellow wires or are they specific. I numbers mine 1-2-3 on both side of the connector but when I get a new one I don't have the plug for the correct orientation. Thanks again.

User avatar
virgilmobile
Posts: 7663
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 questions

Postby virgilmobile » Thu Apr 19, 2012 6:48 am

Dosent matter on the 3 yellow wires.20% more is equal to about 1- 55watt driving light,or 10 marker lights.

sparkyman
Posts: 38
Joined: Mon Apr 16, 2012 8:26 pm
Location: gaines michigan
Motorcycle: 2008 1800 comfort pkg, navigation

Re: charging questions

Postby sparkyman » Thu Apr 19, 2012 11:39 am

Thanks for your help hope to be rideing soon.




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