Refer to “rear sprocket / rear sprocket mounting drum removal and installation” .
Dust seal
Inspect the dust seal for wear or damage. If any damage is found, replace the dust seal with a new one.

Bearing
Inspect the play of the sprocket mounting drum bearing by hand while it is in the drum. Rotate the inner race by hand to inspect for abnormal noise and smooth rotation.
Replace the bearing if there is anything unusual.

Engine sprocket and rear sprocket
Inspect the sprocket teeth for wear. If they are worn as shown, replace the engine sprocket, rear sprocket and drive chain as a set.

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Wheel damper
Inspect the dampers for wear and damage. Replace the dampers if there is anything unusual.

Drive chain
Refer to “drive chain inspection and adjustment” in section 0b .
Rear sprocket / rear sprocket mounting drum removal and installation
Sprocket mounting drum dust seal / bearing removal and installationTp reset
When replacing the throttle body assembly or tp sensor
with a new one or reinstalling the tp sensor, reset the
tp learned value in the following procedures:
Note
keep the throttle valves fully closed while
resetting the tp learned value.
Turn the ignition switch on.
...
Regulator / rectifier inspection
Inspect the regulator/rectifier in the following procedures:
turn the ignition switch off.
Disconnect the regulator/rectifier couplers. Refer to “regulator /
rectifier removal and installation” .
Measure the voltage between the terminals using the multi-circuit
tester ...
Ignition system check
Remove the spark plugs and
reattach them to the spark
plug caps.
Put the engine stop switch in
the "" position and ignition
switch in the "on" position.
While holding a spark plug
with its base firmly against the
engine, push the electric
starter butt ...