Yamaha XF50W Service Manual page 195

CYLINDER AND PISTON
3. Install:
8gasket
8dowel pins
4. Lubricate:
8piston
8piston rings
8cylinder
(with the recommended lubricant)
Recommended lubricant
Engine oil
5. Offset:
8piston ring end gaps
a Top ring
b Lower oil ring rail
c Upper oil ring rail
d 2nd ring
A Exhaust side
6. Install:
8cylinder 1
8timing chain guide(exhaust side)
NOTE:
8 While compressing the piston rings with one
hand, install the cylinder with the other
hand.
8 Pass the timing chain and timing chain
guide (exhaust side) through the timing
chain cavity.
5-38
ENG
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