Spread the rail with your thumbs, but only enough to fit the rail over the piston.
Release the rail into the bottom piston ring groove.
NOTE
The oil ring rails have no “top” or “bottom”.

NOTE
Do not mix up the top and second ring.

NOTE
If a new piston is used, use new piston rings.

When installing the piston pin snap ring, compress it only enough to install it and no more.
NOTICE
Do not reuse snap rings, as removal weakens and deforms them. They could fall out and score the cylinder wall.
40° of angle from the
Top Ring [A]
Second Ring [B]
Oil Ring Steel Rails [C]
Oil Ring Expander [D]
Hollow [E]
30
40° [F]

Special Tools - Piston Ring Compressor Grip: 57001-1095
Piston Ring Compressor Belt,
67
79:
57001-1097

Piston Removal
Cylinder (Upper Crankcase) Wear InspectionBrake Pedal Removal
Remove:
Rear Master Cylinder Mounting Bolts [A]
Foot Guard [B]
Screw and Stopper [C]
Bolt [D]
Front Footpeg Bracket Bolts [E]
Cable Guide [F]
Remove:
Cotter Pin [A]
Joint Pin [B]
Rear Brake Light Switch Spring [C]
Return Spring [D]
Remove the brake pedal mounting b ...
Oil Pan Installation
If the oil filter holder bolt [A] was removed, tighten it.
Apply a non-permanent locking agent to the threads of
the oil filter holder bolt.
Torque - Oil Filter Holder Bolt: 35 N·m (3.6 kgf·m, 26 ft·lb)
Replace the O-rings [B] with new ones, and apply grease
to them.
Install the O-ri ...
Front Wheel Rotation Sensor Removal
NOTICE
The wheel rotation sensor should be handled carefully,
never struck sharply, as with a hammer, or allowed
to fall on a hard surface since the wheel rotation
sensor is precision made. Be careful not to get
water or mud on the wheel rotation sensor.
Do not try to disassemble or repair t ...