Chain Backlash Adjustment; Checking Wear Of Chain, Front And Rear Sprockets - APRILIA tuono v4 Owner's Manual

Chain backlash adjustment (04_35, 04_36)

If you need to adjust chain tension after the check:
•
Place the vehicle on its rear service stand (optional).
•
Loosen the nut (1) completely.
•
Loosen both lock nuts (4).
•
Use the adjuster screws (5) to set the chain clearance, ensuring that the
references (2-3) match on both sides of the vehicle.
•
Tighten both lock nuts (4).
•
Tighten the nut (1).
•
Check chain clearance.
04_35
NOTE
WHEEL CENTRING IS CARRIED OUT USING THE IDENTIFIABLE FIXED REF-
ERENCES (2-3) INSIDE THE CHAIN TENSIONER PAD MOUNTS ON THE SWING-
ARM ARMS, IN FRONT OF THE WHEEL AXLE.
Locking torques (N*m)
Rear wheel nut
120 Nm (88.5 lbf ft)
04_36

Checking wear of chain, front and rear sprockets

Also check the following parts and make sure that the chain, pinion and sprocket do
not have:
•
Damaged rollers.
•
Loosened pins.
•
Dry, rusty, flattened or jammed chain links.
•
Excessive wear.
•
Missing sealing rings.
•
Excessively worn or damaged pinion or sprocket teeth.
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