GL1500A Alternator


Information and questions on GL1500 Goldwings (1988-2000)
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kodle2u
Posts: 4
Joined: Tue Aug 31, 2010 2:52 pm
Location: Okahumpka, FL
Motorcycle: 1993 Honda GW1500A

GL1500A Alternator

Postby kodle2u » Sun Feb 02, 2014 12:11 am



I know there is a ton of messages on here about the alternator and the 1500.. Mine just quit working this weekend. I have been comparing the pro's and cons of going from the 40 amp OEM to a 90 amp. I just recently purchased a new battery (within the last 6 months) Not a gel battery. If i decide to go to a 90 Amp alternator for possible future lighting add-on's, is there anything special I really need to do to make sure I dont burn up my battery, etc etc...I would love to go with the compu fire with gel battery but right now I just cant afford that. Any suggestions or help will be greatly appreciated..

Thank You



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RoadRogue
Posts: 1919
Joined: Sun Jun 06, 2010 10:51 pm
Location: Castlegar BC, Canada
Motorcycle: 1997 1500SE

Re: GL1500A Alternator

Postby RoadRogue » Sun Feb 02, 2014 2:35 am

When my stock alternator quit I went with one of these.It is a new Hitachi 90amp alternator designed to fit the 1500, mine has been working well for a year so far, simple bolt in and fire it up.14.2 volts at idle I am running an AGM battery . 8-)

http://www.emsglobaldirect.com/product. ... =17&page=1
Ride safe, Todd
Over night campers welcome

kodle2u
Posts: 4
Joined: Tue Aug 31, 2010 2:52 pm
Location: Okahumpka, FL
Motorcycle: 1993 Honda GW1500A

Re: GL1500A Alternator

Postby kodle2u » Sun Feb 02, 2014 12:27 pm

Thank you for your reply I will look into the link..

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

Re: GL1500A Alternator

Postby WingAdmin » Sun Feb 02, 2014 6:24 pm

You really need to swap out to an AGM battery if you are going to go with a 90 amp alternator.

svorn
Posts: 26
Joined: Sat Jul 23, 2011 11:49 pm
Location: NE Indiana
Motorcycle: 1999 GL1500SE

Re: GL1500A Alternator

Postby svorn » Sun Feb 02, 2014 7:42 pm

I went with a 95amp LActrical alternator from Amazon for $157. Never had a problem with charging since. It puts out 14.0 volts at any speed, even idle. I have a AGM battery, so no worries there. The only problem I've incurred though, is that I've developed a small oil leak on that side of the bike. I assume it's the new alternator, but it could be the shifter shaft seal too. The new alternator had a smaller O-ring on it, so it slid in almost too easy. When it warms up, I'm going to remove the new alternator and put the OEM o-ring on it, as it's thicker. That should do the trick. I tried to replace the brushes in my factory alternator, but it only lasted 6 miles before it stopped charging again. Just some info for all of you. Enjoy!

kodle2u
Posts: 4
Joined: Tue Aug 31, 2010 2:52 pm
Location: Okahumpka, FL
Motorcycle: 1993 Honda GW1500A

Re: GL1500A Alternator

Postby kodle2u » Mon Feb 03, 2014 12:25 am

I just checked my battery and it is an intimidator AGM battery so I should be good battery wise.. Thank you all for your advice

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dwitgoldwing
Posts: 30
Joined: Mon Nov 16, 2009 1:07 pm
Location: Winchester, KY
Motorcycle: 1993 GL1500 Aspencade CSC sidecar, 1969 CB350, 1977 Suzuki GS750, Honda Odyssey Fl250 (now a 440)

Re: GL1500A Alternator

Postby dwitgoldwing » Mon Feb 03, 2014 9:33 pm

I am interested in a new, higher amp alternator, as well. I am installing my new Odyssey PC680MJ battery this week, along with heated grips, and seat heater in my seat, co-rider seat, and even in the Camry car seat I installed in my CSC Friendship III sidecar. I need more amps, for sure :)

svorn
Posts: 26
Joined: Sat Jul 23, 2011 11:49 pm
Location: NE Indiana
Motorcycle: 1999 GL1500SE

Re: GL1500A Alternator

Postby svorn » Mon Feb 03, 2014 10:24 pm

I think when you run a lot more current, you actually run a second line off the charging post of the alternator for the additional 45-50amps of draw. You don't want to run the additional amperage thru the factory wiring. You would want to fuse it close to the source of course.

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ct1500
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Location: Glastonbury,CT
Motorcycle: 1988 GL1500
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Re: GL1500A Alternator

Postby ct1500 » Mon Feb 03, 2014 10:50 pm

The only way to get more draw on an electrical system is by adding accessories.

A larger alternator is more capable of supplying current to run those extra devices and has nothing to do with the draw. The undersized OEM alternator simply cannot keep up with the original configuration under certain demand (draw) situations at idle whereas the Compufire can.
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

svorn
Posts: 26
Joined: Sat Jul 23, 2011 11:49 pm
Location: NE Indiana
Motorcycle: 1999 GL1500SE

Re: GL1500A Alternator

Postby svorn » Mon Feb 03, 2014 11:02 pm

Correct, but all that stuff he listed as adding will draw a lot more current.

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dwitgoldwing
Posts: 30
Joined: Mon Nov 16, 2009 1:07 pm
Location: Winchester, KY
Motorcycle: 1993 GL1500 Aspencade CSC sidecar, 1969 CB350, 1977 Suzuki GS750, Honda Odyssey Fl250 (now a 440)

Re: GL1500A Alternator

Postby dwitgoldwing » Mon Feb 03, 2014 11:31 pm



Here is a pic of my fuse panel and ground bar. The power comes through a fused-40 Amp relay fed from the battery. I haven't overloaded anything yet, but I am going to run my seat heaters on low, (5A). The grip heaters only pull about 5A max.
I'm saving up for a 90A alternator...

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ct1500
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Re: GL1500A Alternator

Postby ct1500 » Tue Feb 04, 2014 1:44 am

Professional looking panel and recommend all added accessory wiring on the 15 should be wired separate from bikes fuse panel. :D Have got the power plate myself.

A must have IMO is a volt gauge especially with undersized and the known later year failures of alternators to alert of impending failure. Under high demand-low RPM situations if you can keep the volts up to a minimum of 13.5-13.6 with OEM you should be good to go without drawing battery down. Repeated discharge cycles does the battery no good.
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

svorn
Posts: 26
Joined: Sat Jul 23, 2011 11:49 pm
Location: NE Indiana
Motorcycle: 1999 GL1500SE

Re: GL1500A Alternator

Postby svorn » Tue Feb 04, 2014 6:03 am

Nice work! Looks good!

amsoilguy
Posts: 117
Joined: Thu Jul 05, 2012 3:33 pm
Location: Boise, Idaho
Motorcycle: 1988 GL1500

Re: GL1500A Alternator

Postby amsoilguy » Thu Feb 06, 2014 1:56 pm

I agree, great tips and it's always good to have photos...
Allan

'88 GL1500

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dwitgoldwing
Posts: 30
Joined: Mon Nov 16, 2009 1:07 pm
Location: Winchester, KY
Motorcycle: 1993 GL1500 Aspencade CSC sidecar, 1969 CB350, 1977 Suzuki GS750, Honda Odyssey Fl250 (now a 440)

Re: GL1500A Alternator

Postby dwitgoldwing » Thu Feb 06, 2014 2:38 pm

I'm working on a write-up for the fuse panel I made for my bike.
Will put in plenty of photos...

svorn
Posts: 26
Joined: Sat Jul 23, 2011 11:49 pm
Location: NE Indiana
Motorcycle: 1999 GL1500SE

Re: GL1500A Alternator

Postby svorn » Mon Sep 01, 2014 2:30 pm

I was finally going to replace the o-ring on my LAlectrical alternator on Friday before I left on my 1200 mile trip to Deal's Gap, only to find it wasn't the alternator leaking at all. It was a bad shifter shaft seal out of its bore. I guess the o-ring was OK after all.

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dwitgoldwing
Posts: 30
Joined: Mon Nov 16, 2009 1:07 pm
Location: Winchester, KY
Motorcycle: 1993 GL1500 Aspencade CSC sidecar, 1969 CB350, 1977 Suzuki GS750, Honda Odyssey Fl250 (now a 440)

Re: GL1500A Alternator

Postby dwitgoldwing » Mon Sep 01, 2014 3:22 pm

I promise I will get my write-up done, one of these days...

I did install the LActrical 95 Amp alternator, Odyssey PC680MJ battery, 4 gauge wiring,
a BP-FLB-70-RP fuse, (70 amp), and related HEAVY ring terminals back in March 2014.
I could not be happier. The bike charges at any speed and never goes below 13.1 volts
at idle, even with all my seat heaters, grip heaters, sidecar seat heaters, stereo, CB, etc., on.

Even when putting the bike in reverse, the alternator handles it, well. I do rev the engine slightly just to make sure I have the voltage up a little.

I really love this charging setup.

Been super busy this Summer so hopefully, I can do a nice complete write-up this coming Winter

SO glad I found the LAtrical alternator on Amazon!!!!
DW




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