Date: October 2004
Bulletin 33 002 04 (089)

Subject:
Torque Specifications Eccentric Clamp Connection, F 650 CS.

Details:
The clamping bolts for the rear drive belt eccentric may loosen.

Cause:
Using the original torque procedure, the clamping bolts may settle and 
loosen during riding.

Production Solution:
A new torque procedure for these clamping bolts was introduced in 
production starting November 2003.

Aftersales Solution:
When this clamp connection is released during a belt adjustment or as may 
be required during a repair or service work, the following torque sequence 
is to be used during reassembly:

1. Adjust drive belt tension using the adjusting screw, adjustment weight 
and gauge as described in the Workshop Repair Manual.
2. Tighten the clamping screws. The initial torque is 10 Nm.
3. Continue tightening the clamping screws to the second torque 
specification. The second torque specification is 21 Nm.
4. Release the tension on the belt adjusting screw.
5. Apply the final torque of 21 Nm to the clamping screws.
6. Torque the adjusting screw to 10 Nm.
7. Tighten clamping screw again to a final torque of 21 Nm.

Important Note:
It is necessary to check the final torque of the clamping screws several 
times, as the adjusting screw may have an effect on the preload of the 
clamping screws.

Even when carrying out servicing work which does not involve releasing the 
clamping screws, check that these screws are torqued to 21 Nm.

This new torque specification will be incorporated in the Repair Manual 
starting with the F 650 CS model redesign in model year 2004.

Contact:
Respective Aftersales Business Consultant