Rear Sprocket Removal
Remove the rear wheel (see Rear Wheel Removal in the
Remove the rear sprocket nuts [A].
Remove the rear sprocket [B].
Rear Sprocket Installation
Install the sprocket facing the tooth number marking [A]
Tighten the rear sprocket nuts.
Torque - Rear Sprocket Nuts: 74 N·m (7.5 kgf·m, 54 ft·lb)
(Self Locknut): 59 N·m (6.0 kgf·m , 43 ft·lb)
Install the rear wheel (see Rear Wheel Installation in the
Adjust the drive chain slack after installing the sprocket
(see Drive Chain Slack Adjustment).
Sprocket Wear Inspection
Visually inspect the engine and rear sprocket teeth for
wear and damage.
If the teeth are worn as illustrated, replace the sprocket
with a new one, and inspect the drive chain wear (see
Drive Chain Wear Inspection).
[A] Worn Tooth (Engine Sprocket)
[B] Worn Tooth (Rear Sprocket)
[C] Direction of Rotation
If a sprocket requires replacement, the chain is proba-
bly worn also. When replacing a sprocket, inspect the
Rear Sprocket Warp Inspection
Raise the rear wheel off the ground so that it will turn
Special Tool - Jack: 57001-1238
Set a dial gauge [A] against the rear sprocket [B] near the
teeth as shown, and rotate [C] the rear wheel to measure
the sprocket runout (warp). The difference between the
highest and lowest dial gauge readings is the amount of
If the runout exceeds the service limit, replace the rear
Rear Sprocket Warp
less than 0.5 mm (0.020 in.)
Service Limit: 0.6 mm (0.024 in.)
FINAL DRIVE 10-13