Thrumming vibration

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D Man
Posts: 93
Joined: Wed Oct 03, 2007 4:56 pm
Location: Connecticut

Thrumming vibration

Postby D Man » Sun May 25, 2008 11:11 am

I'm feeling a vibration at low speed while turning/leaning sharply left. Feels similar to a cupped tire. New Pilot Road II's with about 1,000 miles. Help!
Thanks
D Man
Trying real hard to keep it legal.

01 R1100S Frost Blue
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timbox2
Posts: 2092
Joined: Tue Aug 21, 2007 4:34 am
Location: South Wales

Postby timbox2 » Sun May 25, 2008 11:54 am

My first thought would be Paralever Bearings, get the rear wheel off the floor and check if there is any movement in them, ( Diff carrier most likely)

How many miles has the bike done?
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D Man
Posts: 93
Joined: Wed Oct 03, 2007 4:56 pm
Location: Connecticut

Postby D Man » Sun May 25, 2008 2:30 pm

18,000 miles on the clock. Very slight play, if any- while holding rear wheel side to side. Hard to tell from where the movement is coming.
Trying real hard to keep it legal.



01 R1100S Frost Blue
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timbox2
Posts: 2092
Joined: Tue Aug 21, 2007 4:34 am
Location: South Wales

Postby timbox2 » Sun May 25, 2008 4:50 pm

D Man wrote:18,000 miles on the clock. Very slight play, if any- while holding rear wheel side to side. Hard to tell from where the movement is coming.


Seems a bit low mileage for Paralever but who knows? Side to side movement is a sign of these bearings having play and the symptoms you describe also point to this, if youve caught them in time adjusting can sometimes sort it.

Not a difficult job but a bit tricky as it involves heating the area around the pivots up to loosen the thread lock BMW use.

Have you got access to a manual?
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