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post #1 of 8 (permalink) Old 01-16-2012, 09:30 AM Thread Starter
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Location: Paris, Kentucky, USA
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I'm trying to find a alternator for my 1988 gl1500. Hard to find. My question is, will any other yr alternator work on my 1500. If so are there any changes that have to be made for them to work.
Thanks for any help.
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post #2 of 8 (permalink) Old 01-16-2012, 09:38 AM
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I would suggest after you do all necessery tests & If you find that your alt is shot then Take the alt off & take it to a place that rebuilds alts/starters/Generaters & They can rebuild it for you but if you have a-lot of Lights /electricle accs Then I would get the compufire alt /Ken Hemmings !

All good things come to He who waitith if he workith like hell while he waitith !
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post #3 of 8 (permalink) Old 01-16-2012, 09:49 AM
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Dave549 wrote:
...will any other yr alternator work on my 1500. If so are there any changes that have to be made for them to work...
> All model years are compatible (1988 - 2000).
> No modifications required, between different years.

> Ken Hemming does rebuilds, and also sells rebuilt alternators
KEN HEMING 3701 E. 69TH. AVE. MERRILLVILLE, IN. 46410-3963 219-947-4038

I void warranties

GL1500, 1990SE, 199k miles
Bridgestone Battlax BT45 on front, 41psi
Dark Side #590, 175R16 Austone, 50psi

GL1500, 2000SE, 168k miles,
Bridgestone Battlax BT45 on front, 41psi
Dark Side #590, 175/60/16 Dunlop Wintersport ROF, 41psi

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post #4 of 8 (permalink) Old 01-16-2012, 08:19 PM
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Go with hummer and have your alt. rebuilt for approx. $200.00.
The 88s had a good alt. that would last for many miles .
The later models had less quality units installed.

The Crazy 88
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post #5 of 8 (permalink) Old 01-16-2012, 09:47 PM
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Might be as simple as needing new brushes ,rear bearing, and drive rubber bushings while it is apart.

Steve E.
2012-GL1800- 11k miles
88-GL1500-124k+ mi. SOLD
78-Honda CB750K- 71k+ mi. -drive to work bike
67-Suzuki 250cc T20-X6 Hustler-fun to ride yet

G709 Front- 9600mi and replaced with G851

Pirelli Snow Control 3
4000mi on it so far @36psi and less sometimes
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post #6 of 8 (permalink) Old 01-17-2012, 07:20 AM
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The 1988 alternator mounting is slightly different than the later years' mounting, which is why you'll not find many listed.

Your '88 alternator mounts using shouldered bolts. The shoulders on these bolts are used to position the alternator allowing the sealing o-ring to be more-equally compressed.

The later year alternators use dowel pins (OEM p/n 94301-10160 et sim, for the curious) in lieu of the shouldered bolts for the same effect.

That kinda explains the "why" you're not seein many listed.

A good work-around is to either have your unit rebuilt (as presented above) or to modify your mounting situation.Simply over-boring the mounting holes on the later model alternators will allow you to retain your '88's OEM mounting bolts. Some folks have also gone with changing to "normal" bolts to mount a later-year alternator onto these first-year bikes.

While, personally, I prefer to re-bore the alternator's holes a bit, choosing to change the bolts will allow you to "share" spare parts with other 1500 riders without road-side modification...
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post #7 of 8 (permalink) Old 01-17-2012, 08:44 AM Thread Starter
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Thanks for your infor. After reading your input. I see I have the "normal" bolts w/out shoulders. Again Thank you!
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post #8 of 8 (permalink) Old 01-17-2012, 09:08 AM
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A new alternator (oem), is 243$ from
When doing long distance travel,on the 1500 , i have always had a spare with me ! (and used it once 2000 miles from home).

The winner is the man with most tools !
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