APRILIA SHIVER 900 Service Station Manual page 335

SHIVER 900
BACKSLASH CHECK
To check clearance:
•
Shut off the engine.
•
Rest the vehicle on its stand.
•
Engage neutral gear.
•
Check that the vertical oscillation at a
point between the pinion and the
sprocket on the lower branch of the
chain is around 25 mm (0,98 in).
•
Move the vehicle forward so as to
check vertical oscillation of the chain in
other positions too. clearance should
remain constant at all wheel rotation
phases.
ADJUSTMENT
CAUTION
THE SPECIFIC OPTIONAL REAR SUPPORT STAND IS
NECESSARY TO ADJUST THE CHAIN.
If you need to adjust chain tension after the check:
•
Place the vehicle on its rear service
stand (OPT).
•
Loosen the nut (1) completely.
•
Loosen both lock nuts (4).
•
Actuate on the adjuster screws (5) and
adjust the chain clearance checking
that the references (2-3) match on both
sides of the vehicle.
•
Tighten both lock nuts (4).
•
Tighten the nut (1).
•
Check chain clearance.
CAUTION
WHEEL CENTRING IS CARRIED OUT USING THE IDENTI-
FIABLE FIXED REFERENCES (2-3) INSIDE THE CHAIN
TENSIONER PAD MOUNTS ON THE SWINGARMS, IN
FRONT OF THE WHEEL AXLE.
CHECKING WEAR OF CHAIN, PINION AND SPROCKET
Also regularly check the following parts and make sure that the chain, the pinion and the sprocket do
not show:
•
damaged rollers;
Chassis
CHAS - 335