Yamaha F225F Service Manual page 375

TIP:
• Make sure that the marks p on the con-
necting rod and connecting rod cap m face
toward the flywheel magnet end of the
crankshaft.
• In the second tightening stage for the con-
necting rod bolts l, mark the connecting
rod bolts and the connecting rod cap with
identification marks r, and then tighten the
bolts 90° from the marks on the connecting
rod caps.
• Make sure that the crankshaft turns
smoothly.
10. Install the crankshaft journal bearings m
in the original positions.
11. Apply a thin, even layer of sealant onto
the mating surface of the crankcase n.
TIP:
Do not apply any sealant to the crankshaft
journal bearings.
12. Install new O-rings o and the crankcase
n, and then tighten the bolts p and q to
the specified torques in 2 stages and in
the order a, b, and so on.
13. Tighten the bolts r to the specified
torques in 2 stages and in the order q,
r, and so on.
m
n
m
p
q
s
e
m
A
w
a
q p
i
s
d
l
v
p
z
h
F
E r
r
Crankcase bolts p and q a–p (M10):
1st: 55 N·m (5.5 kgf·m, 40.6 ft·lb)
2nd: 90°
Crankcase bolt r q–F (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:
• In the second tightening stage for the M10
bolts p and q, mark the M10 bolts and the
crankcase n with identification marks s,
and then tighten the bolts 90° from the
marks on the crankcase.
• Make sure that the crankshaft turns
smoothly.
Cylinder block
n
r
o
o
90˚
f
n
B
x
b
j
t
c
k
u
o
y
g
C
q D
7-92
0
1
2
3
4
5
6
7
8
9
10
A