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RIdgerunner

GL 1500 Charging Problem

8 posts in this topic Last Reply

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RIdgerunner

Ok guys, I gotta new one for me. I have a ‘98 GL1500 SE. I was out of town for a week and when I got home I started my bike and it was not charging. I mounted a digital volt gauge so I could keep an eye on it because my wife and I take a lot of cross country rides. The gauge showed 11.2 on the battery when I turned the key on but when I started it the voltage fluctuated from that to 12.5 then back to 10.1 then 11.8 then it slowly dropped until the bike stalled. All of this at fast idle with the choke on. It typically runs at 13.8 to 14.0 at fast idle. I messed with it over the next couple days and it “fixed itself”? I checked it with a multimeter and it was almost dead on with my bike gauge. It has been fine for a couple weeks and now it’s doing it again. I checked voltage at the alternator (I know it should be removed and bench tested) and the voltage was very erratic from there too. Is my alt getting ready to give up the ghost? Anyone ever had this problem?

 

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OnaWingandaPrayer

It may be time to replace the brushes or at the least clean out the carbon dust accumulation in the alternator.

Mother Honda made a change in alt. suppliers and the newer version is not as dependable as the older .  I dont recall what year the change was made :(

IF you remove the alt. , consider replacing the rubber drive cushions. With age/heat they stiffen up and are known to cause noises.

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terryj

I agree with the above post, sounds like brushes. If this is an OEM alternator you might want to consider an aftermarket 85-90 amp unit. I've replaced a few of the OEM on GL 1500's here in the valley with the higher amp units and haven't had a problem with any of them. I use the DB Electrical 90 amp. You can find the Alternator here: https://www.dbelectrical.com/products/alternator-honda-gold-wing-gl1500-high-output-90-amp.html  Be sure to replace the Alternator Dampener you can find them here: https://cyclemax.com/inc/sdetail/gl1500_alternator_dampener_kit/4102/29165

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RIdgerunner

Well that’s probably as good a place to start as any! Never done that before so it will be a learning experience. I have a Haynes but not sure I will get that much detail on doing that kind of work. 

I guess I could take it off and take it to somebody who does that sort of thing. 

      I do know of those black cushions that you are taking about. All is quiet now but I suppose if I’m taking the alt out I should just change those. Thanks for the help!

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RIdgerunner

Ok Terryj, I just got a new alt. I bought the 90amp from DB elec. waiting on Dampners now, hoping they would be here by today so I could get this all done on Saturday. Not happening! I suppose from what I’ve read that I need a Gel battery. I need a new battery  anyway and was going to get one in the spring. Any suggestions on a good one that won’t break the bank?

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terryj

It's always nice to have a few more amps than what you need, the OEM alternators on the GL1500 are only rated at 30 amps, so any add-ons can start to take it toll on the electrical system. As far as the battery goes, any AGM battery that will fit the GL1500 will work, look for something that has a higher AHr (amp hour rating). I use the Motobatt MBTX24U 12V 25Ah AGM Battery. 

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Triwing

Repaired mine several years ago.

New brushes, as well as front, & rear bearings.

Was still charging fine, but the bearings were shot.

Made one heck of a noise on start up.

I know your not supposed to be able to do it.

But it can be accomplished just study it a little.

 

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terryj

Steve, curious, did you ever get that alternator replaced?

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