Use the micrometer to measure at several points around the ring.
Piston Ring Thickness Standard:
Top [A] 0.77 
0.79 mm (0.0303
0.0311 in.)
Second [B] 0.78 
0.79 mm
(0.0307 
0.0311 in.)
Service Limit:
Top 0.70 mm (0.0276 in.)
Second 0.71 mm (0.0280 in.)
If any of the measurements is less than the service limit on either of the rings, replace all the rings.
NOTE
When using new rings in a used piston, check for uneven groove wear. The rings should fit perfectly parallel to the groove sides. If not, replace the piston.
Piston Ring Groove Width Inspection
Piston Ring End Gap InspectionWarning Indicator Light (Red)
This red warning indicator light and
the oil pressure warning symbol ( )
should go on whenever the ignition
switch is turned to “ON” and go off after
starting the engine.
A. Warning Indicator Light (Red)
B. Warning Symbols
This red warning indicator light has
the two warning function ...
Balance Inspection
Remove the front and rear wheels (see Front/Rear Wheel
Removal).
Support the wheel so that it can be spun freely.
Spin the wheel lightly, and mark [A] the wheel at the top
when the wheel stops.
Repeat this procedure several times. If the wheel stops
of its own accord in various positi ...
Front Wheel Installation
NOTE
The direction of the wheel rotation [A] is shown by an
arrow [B] on the wheel spoke.
Check the wheel rotation mark on the front wheel and
install it.
Apply high-temperature grease to the grease seal lips.
Fit the collars [A] on the both sides of the hub.
The collars are i ...