BMW F800R Rider's Manual page 113

Use a screwdriver to push the
chain up and down and meas-
ure difference a.
Chain deflection
30...40 mm (Motorcycle with
no weight applied, supported
on its side stand)
If measured value is outside per-
mitted tolerance:
Adjust the chain tension
( 111).
Adjust the chain tension
Make sure the ground is level
and firm and place the motor-
cycle on its stand.
Slacken axle nut 1.
Slacken locknuts 2 on left and
right.
Use adjusting screws 3 on left
and right to adjust chain ten-
sion.
Check chain sag (
Make sure that scale read-
ings 4 are the same on left and
right.
Tighten locknuts 2 on left and
right to the specified tightening
torque.
Locknut of the final-drive
chain tensioning screw
19 Nm
Tighten axle nut 1 to the spe-
cified tightening torque.
Rear quick-release axle
in swinging arm
100 Nm
Checking the chain wear
Make sure the ground is level
and firm and place the motor-
cycle on its stand.
Engage 1st gear.
Turn the rear wheel in the nor-
110).
mal direction of travel until the
chain is tensioned.
9
111
z