If the guide pin on any shift fork is less than the service limit, the fork must be replaced.
Shift Fork Guide Pin Diameter
Standard: 6.9
7.0 mm (0.272
0.276 in.)
Service Limit: 6.8 mm (0.268 in.)

If any shift drum groove is worn over the service limit, the drum must be replaced.
Shift Drum Groove Width
Standard: 7.05
7.20 mm (0.278
0.283 in.)
Service Limit: 7.3 mm (0.287 in.)
Shift Fork/Gear Groove Wear Inspection
Gear Dog and Gear Dog Hole
Damage InspectionAir Switching Valve
Air Switching Valve Operation Test
Refer to the Air Suction System Damage Inspection in the
Periodic Maintenance chapter.
Air Switching Valve Unit Test
Remove the air switching valve (see Air Switching Valve
Removal in the Engine Top End chapter).
Set the hand tester [A] to the × 1 ...
Piston Removal
Remove:
Crankshaft (see Crankshaft Removal)
Remove the piston together with the connecting rod to the
cylinder head side.
NOTICE
Discard the connecting rod bolts and nuts. To prevent
damage to the crankpin surfaces, do not allow
the connecting rod bolts to bump against the
crankpins. ...
Average Mileage
This display mode shows the average
mileage by numerical value
counted from the start of measuring to
present time.
A. Average Mileage
B. “AV km/L”
While the average mileage is displayed,
push the lower button and
hold it in until the average mileage
values resets to “– ...