Download BMW HP4 Technical data

9
134
Turn the rear wheel until the
position with the lowest chain
sag is reached.
If the measured value is outside
the approved tolerance:
Adjusting chain tension
( 134).
Maintenance
Adjusting chain tension
z
Make sure ground is level and
firm and park motorcycle.
1.6...2 in (40...50 mm) (Motorcycle unloaded on side
stand)
Locknut of drive-chain
tensioning screw
14 lb/ft (19 Nm)
Tighten quick-release axle
nut 1 to specified torque.
Using a screwdriver, push the
chain in the middle between
the pinion and sprocket and
measure the difference a.
Chain sag
Checking chain tension
( 133).
Ensure that the figures 4 indicating the adjustment settings
are identical on left and right.
Tighten locknuts 3 on left and
right to the specified torque.
Rear-wheel quick-release
axle in swinging arm
Securing device: mechanical
Loosen quick-release axle
nut 1.
Loosen lock nuts 3 on left and
right.
Adjust chain tension with adjusting screws 2 on left and
right.
74 lb/ft (100 Nm)
Check chain wear
Engage 1st gear.
Rotate rear wheel toward front
of vehicle until the chain is tensioned.