Cylinder Head/Cylinder/Piston - Yamaha YZ85(R)/LC Owner's Service Manual

CYLINDER HEAD, CYLINDER AND PISTON
NOTE:
When you purchase a cylinder, you cannot
designate its size. Choose the piston that
matches the above chart.
ASSEMBLY AND INSTALLATION
Piston ring and piston
1. Install:
Piston ring 1
G
NOTE:
Take care not to scratch the piston or dam-
G
age the piston ring.
Align the piston ring gap with the pin 2.
G
After installing the piston ring, check the
G
smooth movement of it.
5PA40620
2. Install:
Gasket (cylinder) 1
G
Small end bearing 2
G
Dowel pin 3
G
NOTE:
Apply the engine oil on the bearing (crank-
G
shaft and connecting rod) and connecting
rod big end washers.
Install the gasket with the seal print side
G
5PA40630
toward the crankcase.
4 - 23
ENG