Gl1200 starter brushes arced to commutator?


Information and questions on GL1200 Goldwings (1984-1987)
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Mikethenang
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Joined: Tue Mar 17, 2020 3:31 am
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Motorcycle: Interstate gl1200 94

Gl1200 starter brushes arced to commutator?

Post by Mikethenang »



Hello guys, im an avid reader but first time posting on the forum and really need your collective help.

I just bought an interstate 85 that had been sitting for 5 years. It wouldnt start so took off the starter motor to check it, after checking voltage to the motor. I noticed one of the brushes was weirdly speckled and the commutator looked melted.

Not sure how it arced and what happened as a result. Did they fuse and stopped the starter from spinning? Does the damage to the brush mean it is not effective anymore? I really am unsure if a.rebuild kit will fix it if I need a new starter motor.

Any help and insight is really appreciated.

Thanks



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winguyjo
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Re: Gl1200 starter brushes arced to commutator?

Post by winguyjo »

brushes are cheap, easy to replace, and still available, but a melted commutator is a whole nother story.
pic(s) would help.

Mikethenang
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Joined: Tue Mar 17, 2020 3:31 am
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Re: Gl1200 starter brushes arced to commutator?

Post by Mikethenang »

I see, ok, here are.some pics.
Attachments









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WingAdmin
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Re: Gl1200 starter brushes arced to commutator?

Post by WingAdmin »

That commutator looks finished to me.

Mikethenang
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Re: Gl1200 starter brushes arced to commutator?

Post by Mikethenang »

:cry: damn, I was hoping that wouldnt be the case. What causes that kind of damage?

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WingAdmin
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Posts: 21285
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Location: Strongsville, OH
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1982 GL1100A Aspencade (sold)
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1998 XV250 Virago (sold)
2012 Suzuki Burgman 400 (wife's!)
2007 Aspen Sentry Trailer

Re: Gl1200 starter brushes arced to commutator?

Post by WingAdmin »

Mikethenang wrote:
Tue Apr 28, 2020 10:40 am
:cry: damn, I was hoping that wouldnt be the case. What causes that kind of damage?
Hard to say - it's possible the brushes wore enough to have bits get between the commutator terminals and cause shorts. Whatever caused the shorts/overcurrent, it has melted and pitted the commutator surfaces, particularly on that one near the top of the picture. The pitting looks beyond what I would expect you could smooth out and repair.

Mikethenang
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Joined: Tue Mar 17, 2020 3:31 am
Location: London
Motorcycle: Interstate gl1200 94

Re: Gl1200 starter brushes arced to commutator?

Post by Mikethenang »

I did find a small pile of solder balls floating around that look to have broken off from the end of the arms. i guess these could have gotten in the way of the armature/brush contact and caused issues.



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