Crankcase And Crankshaft - Yamaha YZ250 Owner's Service Manual

EC4N0000

CRANKCASE AND CRANKSHAFT

10 Nm (1.0 m•kg, 7.2 ft•lb)
Extent of removal:
Extent of removal
Preparation for
removal
1
2
3
CRANKCASE AND CRANKSHAFT
30 Nm (3.0 m•kg, 22 ft•lb)
1 Crankcase separation
3 Crankshaft bearing removal
Order Part name
CRANKCASE AND CRANKSHAFT
REMOVAL
Engine
Piston
Primary drive gear
Kick idle gear
Stopper lever
Rotor and stator
1 Segment
2 Bolt [L=50 mm (1.97 in)]
3 Bolt [L=60 mm (2.36 in)]
4 Bolt [L=70 mm (2.76 in)]
5 Holder
6 Crankcase (right)
7 Crankcase (left)
8 Crankshaft
9 Oil seal
10 Bearing
2 Crankshaft removal
Q'ty
Refer to "ENGINE REMOVAL" section.
Refer to "CYLINDER HEAD, CYLINDER
AND PISTON" section.


Refer to "KICK AXLE, SHIFT SHAFT AND

 PRIMARY DRIVE GEAR" section.

Refer to "CDI MAGNETO" section.
1
7
1
3
2

1 Use special tool.


1 Refer to "REMOVAL POINTS".
1 Use special tool.
Refer to "REMOVAL POINTS".
2
2 Refer to "REMOVAL POINTS".
4-65
ENG
14 Nm (1.4 m•kg, 10 ft•lb)
10 Nm (1.0 m•kg, 7.2 ft•lb)
Remarks