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Thrumming vibration

Posted: Sun May 25, 2008 11:11 am
by D Man
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

Posted: Sun May 25, 2008 11:54 am
by timbox2
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?

Posted: Sun May 25, 2008 2:30 pm
by D Man
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.

Posted: Sun May 25, 2008 4:50 pm
by timbox2
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?