Yamaha YB50 Service Manual page 88

ASSEMBLY AND ADJUSTMENT OF ENGINE
3. Install:
• Cylinder
NOTE:
Install the cylinder with one hand while com-
pressing the piston rings with the other.
4. Install:
• Cylinder head gasket (new gasket)
5. Install:
• Cylinder head
• Spark plug
• Air protector
NOTE:
• The arrow
should point to the exhaust side.
• Tighten the cylinder head positioning nuts
in several steps, using a
Cylinder head positioning screws
1.4 m • kg
spark plug
2.0 m • kg
6. Install:
• Central stand
• Spring
• Axle
• Clasp
• Rubber washer
• Strap loop
7. Install:
• Brake shoes
• Flat washer
• Rear wheel
4-37
MOT
"EX" from the cylinder head
cris-cross pattern