Yamaha F50A Service Manual page 192

POWR
5. Install the piston with the "UP" mark on
the piston crown facing towards the fly-
wheel.
È For USA and Canada
É For worldwide
NOTE:
Apply engine oil to side of the piston assem-
bly.
Piston ring compressor: YU-33294
Piston slider: 90890-06529
6. Install half of the bearings 9 into the cyl-
inder body 0.
NOTE:
Insert the projection f of the bearing into the
notch in the cylinder body.
5-65
Power unit
0
9
S62Y5A81
7. Set the crankshaft A, and oil seals B
and C into the cylinder body as shown.
Apply engine oil to the inner oil seal, jour-
nal bearings, and connecting rod bear-
ing.
8. Install the connecting rod cap 8 to the
connecting rod, and then tighten the con-
necting rod bolts D to the specified
torques in two stages. Apply engine oil to
the connecting rod cap and connecting
rod bolt.
D
8
E
E
S62Y5A80
62Y3A11