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 installationAir bleeding from brake fluid circuit
Air trapped in the brake fluid circuit acts like a cushion to
absorb a large proportion of the pressure developed by
the master cylinder and thus interferes with the full
braking performance of the brake caliper. The presence
of air is indicated by “sponginess” of the brake lever and
also by la ...
Precautions
Precautions for engine cooling system
You can be injured by boiling fluid or steam if you open the
radiator cap when the engine is hot.
After the engine cools, wrap a thick cloth around cap and carefully
remove the cap by turning it a
quarter turn to allow pr ...
Spark plug inspection and cleaning
Inspect spark plug
every 6 000 km (4 000 miles, 12 months)
Heat range
Remove the spark plugs. Refer to “ignition coil and spark plug removal
and installation” in section 1h .
Check spark plug heat range by observing electrode
color. If the electrode of the spark plug is wet
appe ...