intermittent charging


Information and questions on GL1200 Goldwings (1984-1987)
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alsostuck
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Joined: Mon Jun 27, 2011 11:55 pm
Location: W.Jordan, Ut
Motorcycle: 86 Honda aspencade

intermittent charging

Postby alsostuck » Sun Jun 10, 2012 8:49 am



I went riding a couple days ago and before I got too far from home, I experienced a bad miss. I noticed that the voltage had dropped to about 7 volts. I turned around to get back home and suddenly, The voltage started to rise and started to run fine again. This was short lived however and I for a while was worried that I may not get back home. This bike has about 55000 miles on it. I have a hard time believing that the alternator is bad so soon. I have been told that the engine has to come out to replace the alternator. This bike is an 86 Aspencade 1200. Anyone have any Ideas?



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WingAdmin
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Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: intermittent charging

Postby WingAdmin » Mon Jun 11, 2012 10:51 am

I would check your master (dogbone) fuse. It is located inside the solenoid. It commonly cracks, meaning your battery stops charging. However, the crack can be invisible, and it will be intermittent, so the problem comes and goes.

Have a look at this post, it has a couple pictures of what you're looking for. The dogbone fuse is held in place with two screw terminals, and the fuse screws into place as you can see.

Then have a look at this post, where you can see the replacement I used. I took a couple large spade lug terminals and crimped them onto the ends of the wire coming out of the blade fuse holder. I then just screwed the two terminals in place of the dogbone fuse. That's all there is to it, really.

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virgilmobile
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Re: intermittent charging

Postby virgilmobile » Mon Jun 11, 2012 1:35 pm

Also check and repair all connections on the stator and regulator.
The 3 yellow wire plug next to the battery is known to be a weak link in the charging system.
While your right there,have a close look at the connectors on the 4 wire plug,it goes to the pulse coils.Mine were corroded and a slight bump of the connector killed my engine.

hotwire
Posts: 42
Joined: Mon Sep 05, 2011 8:57 pm
Location: mosheim,tn
Motorcycle: 1985 gl1200 aspencade

Re: intermittent charging

Postby hotwire » Wed Jun 13, 2012 11:08 pm

you should also check connector under top cover that comes from the wiring harness to the rectifier / regulator, as it can work loose or be corroded, my '85 Aspy had a former owner who felt compelled to cut the three yellow wires from stator that fed thru this connector and use stake-on crimps to re-connect. Worked o.k. as long as he owned it , I guess. Was going on a ride today until smoke started to come from this area, and found after pulling top cover that one wire had melted at stake-on, and blew out the small 2200uf capacitors that are wired to regulator plug. Did a check on the whole system, ( Stator included ) and found diodes blown in rectifier/ regulator. Don't know if faulty wiring connections contributed to this or regulator just gave up the ghost? By the way, has anyone experienced this? My friend owns an '86, same thing happened to his as well. Anybody know the best place to buy a regulator? Honda shop wants quite a few coins for one. It is a Shindengen brand. (Hope I spelled that right!!) P.S. After my incident today, I checked the charging, and it was over well over 14 volts at idle. I know that ain't right!

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virgilmobile
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Re: intermittent charging

Postby virgilmobile » Wed Jun 13, 2012 11:19 pm

Well over 14 volts can be fixed.There is a wright up somewhere on this site on how to add a relay to the regulator.I'll dig in my files and post it.

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WingAdmin
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1982 GL1100A Aspencade (sold)
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1998 XV250 Virago (sold)
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Re: intermittent charging

Postby WingAdmin » Thu Jun 14, 2012 9:47 am

Used regulators are almost always available on eBay.

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virgilmobile
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83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: intermittent charging

Postby virgilmobile » Thu Jun 14, 2012 12:39 pm

hotwire wrote: I checked the charging, and it was over well over 14 volts at idle. I know that ain't right!


Compare the volts at the battery to the black wire on the regulator.There should be no more than 0.5 volts difference.If there is more,use the black wire to operate a relay and use it to switch battery power direct to the regulator.

Volts should be measured with a DVM and from the battery positive post to the regulator black wire.If the volts are 1.5VDC,you will see a charging volts above 15.3 volts at 3000 rpm.
If the volts on the black wire is exactly the same ( less than 0.5 volts) replace the regulator.

hotwire
Posts: 42
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Motorcycle: 1985 gl1200 aspencade

Re: intermittent charging

Postby hotwire » Sun Jun 17, 2012 9:17 pm

Thanks, Virgil, I can try that out pretty easy, and relays are easy to find. I understand how that can work, pretty crafty idea !!

hotwire
Posts: 42
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Re: intermittent charging

Postby hotwire » Sun Jun 17, 2012 9:24 pm

Does anyone know for sure what the two small encased 2200 micro-farad capacitors wired into the regulator plug do? Are they for a noise filter? And are they necessary for the charging system to work properly? The wiring diagram just calls them a condenser, but the local Honda shop doesn't offer any insight. Thanks ahead of time for any help.

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virgilmobile
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Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: intermittent charging

Postby virgilmobile » Mon Jun 18, 2012 7:57 am

Noise filtering.They can be removed.Only needed to reduce whine in the audio system.

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WingAdmin
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1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: intermittent charging

Postby WingAdmin » Mon Jun 18, 2012 10:00 am

If you have a CB, it will be all but unusable if those capacitors are removed.




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