BMW K bikes (Bricks)


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brooklyn66

brooklyn66
active member
active member
http://www.maxbmwmotorcycles.com/fiche/MainDiagrams.asp?VIN=6309411Hi, I,m new here , I,m from Spain, happy to say hi at all.
They are strange noise at this level ,the the rubber bumper in the alternator are new , maybe the alternator bearing driver is bad , in this pic where is located this bearing ?
thank,s. Very Happy K100 strange noise  at altenator or start engine?? B0000112
K100 strange noise  at altenator or start engine?? B0000111
K100 strange noise  at altenator or start engine?? B0000110

    

ReneZ

ReneZ
Life time member
Life time member
This is the alternator. Bearings are Nos 14 and 18. In your drawing bearings are Nos 10.


K100 strange noise  at altenator or start engine?? B0000275

    

Crazy Frog

Crazy Frog
admin
admin
The noisy alternator is a common problem on the K bikes.
I myself have a noisy alternator and already replaced the bearings without any improvement. I also replace the bearing #10 on the sprag clutch and it didn't make any difference too.
My brother's bike was so noisy that he thought that the engine was shot. In fact it was only the alternatorand after replacing it, the noise went away.

Now that I know that the problem is at the alternator level, I ignore it and enjoy my ride.

    

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