BMW F 800 GS Rider's Manual page 98

8
94
Use a screwdriver to push the
chain up and down and meas-
ure difference A.
Chain deflection
z
35...45 mm (Motorcycle with
no weight applied, supported
on its side stand)
If measured value is outside per-
mitted tolerance:
Adjusting chain sag (
Adjusting chain sag
Make sure the ground is level
and firm and place the motor-
cycle on its stand.
Slacken quick-release axle
nut 1.
Slacken locknuts 2 on left and
right.
Use adjusting screws 3 on left
and right to adjust chain sag.
Checking chain sag (
94).
Make sure that scale read-
ings 4 are the same on left and
right.
Tighten locknuts 2 on left and
right.
Locknut of the final-drive
chain tensioning screw
19 Nm
Tighten quick-release axle
nut 1 to the specified tight-
ening torque.
Rear quick-release axle
in swinging arm
100 Nm
Checking chain wear
Make sure the ground is level
and firm and place the motor-
cycle on its stand.
93).