Use a vernier caliper at several points around the piston.
Piston Ring Groove Width Standard:
Top [A] 0.82 
0.84 mm (0.0323
0.0331 in.)
Second [B] 0.82 
0.84 mm
(0.0323 
0.0331 in.)
Service Limit:
0.92 mm (0.036 in.)
Second 0.92 mm (0.036 in.)
If the width of any of the two grooves is wider than the service limit at any point, replace the piston.
Piston Ring, Piston Ring Groove Wear Inspection
Piston Ring Thickness InspectionSpring Plate Free Play Adjustment
NOTE
The free play adjustment is performed by replacing the
steel plate(s).
Measure the clutch spring plate free play (see Clutch
Spring Plate Free Play Measurement), and then replace
the steel plate(s) which brings the free play within the
usable range.
Spring Plate Free Play
Usable ...
Stop Watch
The stop watch can be used in closed
course competition.
The stop watch is operated as follows:
Push the upper button to display the
stop watch.
To start the stop watch, push the
“START/STOP” switch on the right
handlebar switch to the left.
A. “START/STOP” Switch
...
Front Wheel Removal
Remove:
Front Caliper Mounting Bolts [A] (Both Sides)
Front Caliper [B] (Both Sides)
Loosen:
Front Axle Clamp Bolts [A] (Right Side)
Front Axle [B]
Remove the lower fairings (see Lower Fairing Removal in
the Frame chapter).
Raise the front wheel off the ground.
...