Checking chain tension ( 90).
Checking chain tension
Place the motorcycle on its
stand on firm, even ground.
Turn the rear wheel until it
reaches the position with the
lowest amount of chain sag.
Use a screwdriver to push the
chain 1 up and down at a point
midway along the run between
the chain thrust roller and the
chain sprocket and measure
chain tension A.
Chain deflection
40...50 mm (Motorcycle with
no weight applied, supported
on its side stand)
If chain deflection is outside per-
mitted tolerance:
Adjust the chain tension
( 89).
Lubricating chain
ATTENTION
Inadequate cleaning and lub-
rication of the drive chain
Accelerated wear
Clean and lubricate the drive
chain at regular intervals.
Lubricate the drive chain every
third fuel stop.
Lubricate the chain more fre-
quently if the motorcycle is
ridden in wet, dusty or dirty
conditions.
Switch the ignition off and se-
lect neutral.
Clean the drive chain with a
suitable cleaning product, dry it
and apply chain lubricant.
To prolong chain life,
BMW Motorrad recommends
the use of BMW Motorrad
chain lubricant, or:
Lubricant
Chain spray
Wipe off excess lubricant.
Checking the chain wear
Engage 1st gear.
Turn the rear wheel in the nor-
mal direction of travel until the
chain is tensioned.
Measure chain length under-
neath the rear wheel swinging
arm.
8
90
z
Maintenance