Yamaha F200B Service Manual page 356

POWR
TIP:
• Install each thrust bearing with its grooves
t facing outward.
• Fit the protrusion on each thrust bearing
into the slot in the crankcase.
11. Install new O-rings C and D and the
crankcase E onto the cylinder block, and
then tighten the crankcase bolts F and
G to the specified torques in 2 stages
and in the order 1, 2, and so on.
12. Tighten the crankcase bolts H to the
specified torques in 2 stages and in the
order G, H, and so on.
H
D
7-97
Power unit
F
G
E
C
8
90
u
S
5 C
O
1 9
K
STBD
4 B
G
8 F
J
R
N
Crankcase bolt F 1–8 (M8):
1st: 28 N·m (2.8 kgf·m, 20.7 ft·lb)
2nd: 90°
Crankcase bolt G 9–F (M10):
1st: 33 N·m (3.3 kgf·m, 24.3 ft·lb)
2nd: 90°
Crankcase bolt H G–S (M8):
1st: 14 N·m (1.4 kgf·m, 10.3 ft·lb)
2nd: 28 N·m (2.8 kgf·m, 20.7 ft·lb)
TIP:
• Make sure that the oil seal 8 must be
installed before tightening the crankcase
bolts.
• In the 2nd tightening stage for the M8 bolts
F and M10 bolts G, mark the bolts and the
crankcase E with identification marks u,
and then tighten the bolts 90° from the
marks on the crankcase.
• After tightening the crankcase bolts, make
sure that the crankshaft turns smoothly.
13. Install the piston I so that the mark v
on the piston crown is facing toward the
flywheel magnet end of the crankshaft.
G F
UP
P
D 6
H
L
0 2
H
PORT
A 3
E 7
I
Q
M