Yamaha WR450F, Owner'S Service Manual

Page: 522 / 794

4 - 101
ENG
CRANKCASE AND CRANKSHAFT
EC4N5000
ASSEMBLY AND INSTALLATION
Crankshaft bearing
1. Install:
• Bearing
• Bearing stopper
• Bolt (bearing stopper)
• Screw (bearing stopper)
• Screw [bearing stopper (crankshaft)]
1
To crankcase (left and right).
NOTE:
• Install the bearing by pressing its outer race
parallel.
• To prevent the screw [bearing stopper
(crankshaft)] from becoming loose, crush the
screw head periphery
a
into the concave
b
using a punch etc. In so doing, take care not
to damage the screwdriver receiving hole in
the screw head.
New
T
R
.
.
10 Nm (1.0 m · kg, 7.2 ft · lb)
T
R
.
.
10 Nm (1.0 m · kg, 7.2 ft · lb)
T
R
.
.
14 Nm (1.4 m · kg, 10 ft · lb)
Crankshaft
1. Install:
• Crankshaft
1
Use the crankshaft installing tool
2
,
3
,
4
and
5
.
È
For USA and CDN
É
Except for USA and CDN
Crankshaft installing pot
2
:
YU-90050/90890-01274
Crankshaft installing bolt
3
:
YU-90050/90890-01275
Adaptor (M12)
4
:
YU-90063/90890-01278
Spacer (crankshaft installer)
5
:
YM-91044/90890-04081
È É