CYLINDER/PISTON
9-10
CYLINDER/PISTON INSTALLATION
PISTON RING INSTALLATION
Apply engine oil to the piston and piston ring outer
surface.
Carefully install the piston rings into the piston ring
grooves with the markings facing up.
• Do not confuse the top and second rings.
• To install the oil ring, install the spacer first, then
install the side rails.
Stagger the piston ring end gaps 120° apart from
each other.
Stagger the side rail end gaps as shown.
PISTON INSTALLATION
Replace the O-ring with a new one and apply engine
oil.
Install new O-ring to the oil jet groove securely.
Install the oil jet to the crankcase securely with the
semi-circular side facing in.
Apply molybdenum disulfide oil solution to the con-
necting rod bore.
Be careful not to
damage the piston
and rings.
"N" MARK
SPACER
TOP RING
SECOND
RING
"NR" MARK
SIDE RAILS
20 mm (0.8 in)
OR MORE
120°
120°
120°