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K100-forum.com » Technical, repair and troubleshooting » Electrical » Should Alternator bushes be replaced?

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MT350Explorer

MT350Explorer
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Hi Guys,

I have a pair of new alternator brushes and am dithering whether to fit them or carry them as spare. The bike is probably running on originals and has 87 000 miles on the clock. What does expereinec tell us about the longevity of these brushes? Are there bikes out there with 200 000 on the originals?

Thanks
Dave

    

charlie99

charlie99
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over 184000 killometers so far dave

but i recon a new regulator is on the cards soon anyhow ...it has issues actually delivering more han 13.8 volts

and a bit less fully loaded .


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MT350Explorer

MT350Explorer
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Hi Charlie,
Thanks mate - that's good enough for me, I'm not looking to do work that I don't need to Very Happy
I dunno what the regualtor puts out - no dim lights so I'm living in happy ignorance!
Cheers
Dave


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1991 K100 RS 16 valve
    

Inge K.

Inge K.
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MT350Explorer wrote:Are there bikes out there with 200 000 on the originals?
Did change mine at 202.686 km.


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Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

Crazy Frog

Crazy Frog
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The alternator on a K bike is almost (or) the same as a car one.
I will answer your question by a question: How often do you worry about the brushes on your car's alternator?
Here is the end of your worries Smile

CF


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Should Alternator bushes be replaced? Frog15Should Alternator bushes be replaced? Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

Rick G

Rick G
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I replaced mine at 155000 when I replaced the bearings, they were well worn but not worn out.


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Bikes 1999 K1100 LT with a Big Block 1200
    

K-BIKE

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If you are in there and can access the regulator it is only two screws to remove to get the regulator out and have a quick gander at the brushes to check their length. If they are worn below 8 mm sticking out of the holder then change the brushes or more simply just swap the regulator and later replace the brushes in the old one and keep it as a spare.
Regards,
K-BIKE

    

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