Alternator problems


Information and questions on GL1500 Goldwings (1988-2000)
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Philcott
Posts: 6
Joined: Fri Apr 15, 2011 12:10 pm
Location: Memphis, Tennessee
Motorcycle: 1987 GL1200A Aspencade
1999 GL1500

Alternator problems

Postby Philcott » Wed Jun 01, 2016 10:44 am



My GL1500 is my commuter vehicle, and the other day it left me standing by the side of the road. As I left home, I noticed that the (aftermarket) voltmeter was reading 10 volts, and I thought, "Surely I didn't draw down the battery that much just starting the bike?" Two blocks later, it was 7 volts, and then everything started to shut down.
I took the alternator out and headed to a shop that the Honda folks recommended, in order to get my alternator rebuilt. Guy at the shop says the alternator tests out fine. No problems there.
What could be causing the the system to stop charging, other than the alternator going out?



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virgilmobile
Posts: 7646
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: Alternator problems

Postby virgilmobile » Wed Jun 01, 2016 11:16 am

The alternator does have a "get it going" wire attached to the back of it.Its suppose to have 12 volts on it when the key is on.
There is also a dogbone fuse between it and the battery.A good chance its cracked.
Its also possible that its intermittent internally.
A broken armerature connection or sticking brushes.
My first suggestion is to remove and replace the dogbone fuse that connects to the alternator.

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MikeB
Posts: 1223
Joined: Fri Dec 04, 2009 12:54 pm
Location: Tacoma, WA
Motorcycle: 1998 - GL1500 Aspencade.
2003 - GL1800A

Re: Alternator problems

Postby MikeB » Wed Jun 01, 2016 11:41 am

I'd suspect that the brushes were stuck and not making proper contact with the commutator. If I were you, I'd replace the brushes and reinstall the alternator.
MikeB
Tacoma, WA, USA

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aj1500
Posts: 161
Joined: Fri May 29, 2015 8:05 am
Location: Savannah Ga
Motorcycle: 97 1500 SE
Motorvation II sidecar
Double Dark Side # 1522
USCA# 8913
Goodyear Fuel max 175/60 R16
Bridgestone Battlax 130/70 18

Re: Alternator problems

Postby aj1500 » Wed Jun 01, 2016 11:55 am

MikeB wrote:I'd suspect that the brushes were stuck and not making proper contact with the commutator. If I were you, I'd replace the brushes and reinstall the alternator.


+1 , also verify the exciter wire is getting voltage when you put it back together

Philcott
Posts: 6
Joined: Fri Apr 15, 2011 12:10 pm
Location: Memphis, Tennessee
Motorcycle: 1987 GL1200A Aspencade
1999 GL1500

Re: Alternator problems

Postby Philcott » Wed Jun 01, 2016 12:14 pm

Thank you! I'll run those past my alternator guy, and see what I can figure out. Might go for a 95-amp alternator anyway.

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lamasue
Posts: 82
Joined: Tue May 13, 2014 7:57 pm
Location: fayette,maine
Motorcycle: 2000 1500se

Re: Alternator problems

Postby lamasue » Wed Jun 01, 2016 8:51 pm

Your in that gap of years where alt has bearing problems get in touch with ken hemming he deals with golding alts got a 85 amp off him

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hugger-4641
Posts: 180
Joined: Wed May 25, 2011 1:07 pm
Location: McKenzie, TN
Motorcycle: 1994 GL1500 Aspencade, 1982 CM 200 Twinstar, 1984 VT500 Ascot

Re: Alternator problems

Postby hugger-4641 » Thu Jun 02, 2016 10:36 pm

My bet is also that the brushes were stuck. The slight banging around involved with removing the alternator probably freed the brushes and it tested fine at the shop, but if reinstalled, they will stick again.

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Mh434
Posts: 939
Joined: Tue Mar 25, 2014 10:24 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1997 gl1500 SE
Previous:
1981 GL1100I
1989 Kawasaki Concours

Re: Alternator problems

Postby Mh434 » Fri Jun 03, 2016 2:02 pm

Philcott wrote:Thank you! I'll run those past my alternator guy, and see what I can figure out. Might go for a 95-amp alternator anyway.

The higher-output alternator would be my suggestion - it probably won't cost any more than getting your old one rebuilt, you'll have a brand new alternator (rather than a repaired old one that still has most of its worn parts), and you'll have another 55 amps to play with! You would, though, need an AGM-type battery to go with it, if you don't already have one, as I understand the standard (non-AGM) batteries aren't up to the output of the high output alternators.




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