Refer to “gearshift shaft / gearshift cam plate removal and installation” .
Gearshift shaft
Check the gearshift shaft for bend or wear.
Check the return spring for damage or fatigue.
If any defects are found, replace the defective part(-s).

Gearshift shaft oil seal
Inspect the gearshift shaft oil seal lip for damage or wear. If any defect is found, replace the oil seal with a new one.

Gearshift shaft bearing
Inspect the gearshift shaft bearings for abnormal noise and smooth rotation. Replace the bearing if there is anything unusual.

Gearshift shaft / gearshift cam plate removal
and installation
Gearshift shaft oil seal / bearing removal and installationSpecifications
Service data
Suspension
unit: mm (in)
Tightening torque specifications
Note
the specified tightening torque is described in the following.
“Front fork components”
Reference: for the tightening torque of fastener not specified in this
section, refer to “tightening ...
Cylinder inspection
Refer to “engine top side disassembly” .
Refer to “engine top side assembly” .
Cylinder distortion
Check the gasket surface of the cylinder for distortion.
Use a straightedge and thickness gauge. Take clearance
readings at several places. If any reading exceeds the
service limit, replace t ...
Exhaust system components
Exhaust pipe gasket
Exhaust pipe assembly
Ho2 sensor
Connector
: install the connector so that the
chamfer side faces backward.
Muffler chamber
Muffler body
Excv cable no. 1
Excv cable no. 2
When loosening or tightening the pulley bol ...