Piston, Cylinder And Cylinder Head (Cs50Z) - Yamaha CS50 Service Manual

ENGINE ASSEMBLY AND ADJUSTMENT
PISTON, CYLINDER AND CYLINDER HEAD (CS50Z L/C)
Carburetor joint
Reed valve
Gasket
Cylinder head
Cylinder head gaskets
Cylinder
Cylinder gasket
Piston-to-cylinder clearance:
0.029 ~ 0.042 mm
<Limit>: 0.1 mm
End gap (installed):
Top ring
0.15 ~ 0.35 mm
<Limit>: 0.60 mm
Second ring
0.15 ~ 0.35 mm
<Limit>: 0.60 mm
Ring side clearance:
Top ring
0.03 ~ 0.05 mm
Second ring
0.03 ~ 0.05 mm
Spark plug:
Type / manufacturer: BR8HS/NGK
Spark plug gap: 0.6 ~ 0.7 mm
16 Nm (1.6 m • kg)
20 Nm (2.0 m • kg)
5 Nm (0.5 m • kg)
14 Nm (1.4 m • kg)
4-38
Piston rings
Piston
Piston pin
Piston pin clips
Bearing
Thermo switch
Thermostat
11 Nm (1.1 m • kg)
ENG
CS50Z