Yamaha F50D Servise Manual page 196

POWR
10. Install the crankcase y and then tighten
the bolts u and i to the specified
torques in 2 stages and in the sequence
numbers ( , , ···).
u
i
u
i
i
u u
Crankcase bolt (M8) u:
1st: 15 N·m (1.5 kgf·m, 11.1 ft·lb)
2nd: 30 N·m (3.0 kgf·m, 22.1 ft·lb)
Crankcase bolt (M6) i:
1st: 6 N·m (0.6 kgf·m, 4.4 ft·lb)
2nd: 12 N·m (1.2 kgf·m, 8.9 ft·lb)
7-55
Power unit
y
i
u
i