Yamaha F200B, Service Manual

Page: 351 / 579

7-92
7
6. Install the crankcase
4
, and then tighten
the crankcase bolts
5
and
6
to the
specified torques in 2 stages and in the
order
1
,
2
, and so on.
7. Tighten the crankcase bolts
7
to the
specified torques in 2 stages and in the
order
G
,
H
, and so on.
TIP:
• Do not turn the crankshaft until the crank-
shaft journal oil clearance measurement
has been completed.
• In the 2nd tightening stage for the M8 bolts
5 and M10 bolts 6 , mark the bolts and the
crankcase with identification marks
c
, and
then tighten the bolts 90° from the marks on
the crankcase.
8. Remove the crankcase, and then mea-
sure the width of the compressed Plasti-
gauge (PG-1) on each crankshaft
journal.
TIP:
When loosening the crankcase bolts, loosen
them in the opposite order used for tighten-
ing.
Selecting the crankshaft journal
bearing
When replacing the crankshaft journal bear-
ing, select the bearing as follows:
6
4
5
7
PORT
UP
STBD
90
c
1 2
3 4
5 6
7 8
9 0
A B
C D
E F
G
H
I
J
K
L
M N
O
P
Q R
S
6
7
5
Crankcase bolt
5 1
–
8
(M8):
1st: 28 N·m (2.8 kgf·m, 20.7 ft·lb)
2nd: 90°
Crankcase bolt
6 9
–
F
(M10):
1st: 33 N·m (3.3 kgf·m, 24.3 ft·lb)
2nd: 90°
Crankcase bolt
7 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)
Crankshaft journal oil clearance:
0.035–0.050 mm (0.0014–0.0020 in)
Cylinder block