GL1200 charging issues


Information and questions on GL1200 Goldwings (1984-1987)
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lovetoride
Posts: 21
Joined: Sat Oct 08, 2011 6:17 pm
Location: St.Petersburg, FL
Motorcycle: 1987 gl1200a

GL1200 charging issues

Post by lovetoride » Fri Jul 05, 2019 11:51 am



Greetings all.

I need to ask for the help of the group on a charging issue with my 87 gl1200. About a year and a half ago I had replace the stater. After replacing it I did not have any issues until recently. I broke down on a trip a few months back, thought it was the battery so I replaced it. That battery died. I charged it and then found out that the stater connector melted. I corrected the problem (soldered the wires). Now I have 12.8v at 3000 rpm but no higher. According to the service manual that indicates a bad rectifier. I replaced the rectifier. I still have only 12.8v at 3000 rpm. I have been putting a trickle charger on the battery to keep it charged.
The bike runs just fine off the stater (no dimming of the lights when stopped, accessories run just fine, etc.) Soooo......Im not sure what to look at next. Any help would greatly appreciated.

Thanks!!



User avatar
oldishwinger
Posts: 399
Joined: Sun Jul 14, 2013 11:26 pm
Location: New Zealand
Motorcycle: 1986 GL1200 Aspencade

Re: GL1200 charging issues

Post by oldishwinger » Mon Jul 08, 2019 5:46 pm

Hi your situation seemed similar to what happened to my 86 apsy, wheras I replaced a bad stator, and about 12 months later noticed a voltage drop to about 13 volts constant at 3000 rpm

funnily enough, the bike ran fine at that but of course it shouldnt be that, and there it does mean there is fault somewhere, and the worry is is could get worse.

Like you, I ran a rectifier check which came up fine, apart from the earth that takes access power to ground, which I was told couldnt be checked so that unfortunately left the stator again.

a check showed that one leg of the stator wasnt working so I was up for another stator, mainly because I had made the mistake of assuming when the first stator failed, that was it, but there was another fault, not found, and this caused the second stator failure.

Randalks have a article on just this.

To eliminate any issues around the rectifier and stator I installed a poor boy conversion, best thing I ever did.

my opologies for being a a bit long winded, but a stator check would seem to be needed I think, plus a earth wire check at the rectifier if you can find out how to do that.

good luck.

User avatar
lovetoride
Posts: 21
Joined: Sat Oct 08, 2011 6:17 pm
Location: St.Petersburg, FL
Motorcycle: 1987 gl1200a

Re: GL1200 charging issues

Post by lovetoride » Mon Jul 08, 2019 6:24 pm

I hate to hear that. Thanks for your help. I appreciate it.

User avatar
lovetoride
Posts: 21
Joined: Sat Oct 08, 2011 6:17 pm
Location: St.Petersburg, FL
Motorcycle: 1987 gl1200a

Re: GL1200 charging issues

Post by lovetoride » Sat Jul 13, 2019 12:29 pm

Stater check shows a bad leg. 🙁
I've been looking at the conversion kits and the seems to be a few choices. So now my question is which one is the best, economical, and least invasive?
Thank you.

User avatar
oldishwinger
Posts: 399
Joined: Sun Jul 14, 2013 11:26 pm
Location: New Zealand
Motorcycle: 1986 GL1200 Aspencade

Re: GL1200 charging issues

Post by oldishwinger » Sat Jul 13, 2019 5:30 pm

tough question hard to say which is best, this is the one I went with its not the cheapest for sure but it came with everything needed to do the job and it works well.

https://www.ebay.com/itm/honda-gl1200-a ... XQya1Q8yyg

doing the conversion requires a bit of knowledge around the bike, a bit of head scratching and patience tolerances are very small but in my humble opinion worth the effort.

good luck.

User avatar
lovetoride
Posts: 21
Joined: Sat Oct 08, 2011 6:17 pm
Location: St.Petersburg, FL
Motorcycle: 1987 gl1200a

Re: GL1200 charging issues

Post by lovetoride » Sat Jul 13, 2019 5:47 pm

Thank you for your input. I appreciate it.



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