Refer to “transmission removal” , “transmission installation” and “countershaft gear / driveshaft gear disassembly and assembly” .
Gearshift fork to groove clearance
| Note the clearance for each gearshift fork plays an important role in the smoothness and positiveness of the shifting action. |
Using the thickness gauge, check the gearshift fork clearance in the groove of its gear.
If the clearance checked is noted to exceed the limit specified, replace the fork or its gear, or both.
Special tool
(a): 09900–20803 (thickness gauge)
Gearshift fork to gearshift fork groove clearance standard: 0.1 – 0.3 Mm (0.004 – 0.012 In) service limit: 0.5 Mm (0.02 In)

Gearshift fork groove width
Measure the gearshift fork groove width using the vernier calipers.
Special tool
(a): 09900–20102 (vernier calipers
(200 mm))
Gearshift fork groove width standard: 5.0 – 5.1 Mm (0.197 – 0.201 In)

Gearshift fork thickness
Measure the gearshift fork thickness using the vernier calipers.
Special tool
(a): 09900–20102 (vernier calipers
(200 mm))
Gearshift fork thickness standard: 4.8 – 4.9 Mm (0.189 – 0.193 In)

Gearshift cam
Inspect the gearshift cam groove for abnormal wear and damage. If any defects are found, replace the gearshift cam with a new one.

Gearshift cam bearing
Inspect the gearshift cam bearings, left and right for abnormal noise and smooth rotation.
Replace the bearing if there is anything unusual. Refer to “transmission removal” and “transmission installation” .

Driveshaft bearing
Inspect the driveshaft left bearing for abnormal noise and smooth rotation while it is in the case.
Replace the bearing if there is anything unusual. Refer to “transmission removal” and “transmission installation” .

Inspect the driveshaft right bearing for abnormal noise and smooth rotation.
If there is anything unusual, replace the bearing assembly. Refer to “transmission removal” and “transmission installation” .

Driveshaft oil seal
Inspect the driveshaft left bearing dust seal for wear and damage.
Replace the dust seal if there is anything unusual. Refer to “transmission removal” and “transmission installation” .

Gear position (gp) switch inspection
Refer to “side-stand / ignition interlock system parts inspection” in section 1i .
Countershaft gear / driveshaft gear
disassembly and assembly
Gear position (gp) switch removal and installationTurn signal switch inspection
Inspect the turn signal switch in the following
procedures:
remove the air cleaner box. Refer to “air cleaner box removal and
installation” in section 1d .
Disconnect the left handlebar switch coupler (1).
(Yellow)
Inspect the turn signal switch for continuity wit ...
Fuel tank construction
Fuel tank heat
shield
: aluminum film side should face the engine side.
Fuel tank front cover
Fuel tank front bracket
Velcro fastenings
: clean the adhesive surface before adhering
the velcro fastenings.
Insert
to the bracket.
Apply
...
Valve seat repair
The valve seats (1) for both the intake and exhaust
valves are machined to three different angles. The seat
contact surface is cut at 45°.
Intake valve
Exhaust valve
Caution
the valve seat contact area must be
inspected after e ...