Yamaha WR250F 2017 Owner's Service Manual page 301

CRANKCASE
EAS2GBB310
Separating the crankcase
5
4
4
12 Nm (1.2 m kgf, 8.7 ft Ibf)
3
LT
10 Nm (1.0 m kgf, 7.2 ft Ibf)
Order
Engine
Piston
Balancer
Kick shaft assembly
Segment
Generator rotor
1 Timing chain guide (exhaust side)
2 Timing chain guide stopper plate
3 Timing chain
4 Bolt [L = 45 mm (1.77 in)]
5 Bolt [L = 60 mm (2.36 in)]
6 Bolt [L = 75 mm (2.95 in)]
7 Right crankcase
8 Left crankcase
9 Dowel pin
6
4
4
5
1
2
4
12 Nm (1.2 m kgf, 8.7 ft Ibf)
Part name
5 Nm (0.5 m kgf, 3.6 ft Ibf)
LT
6
9 11
10
12 Nm (1.2 m kgf, 8.7 ft Ibf)
Q'ty
Refer to "ENGINE REMOVAL" on page 6-1.
Refer to "CYLINDER AND PISTON" on page
6-32.
Refer to "OIL PUMP AND BALANCER
GEAR" on page 6-59.
Refer to "KICKSTATER" on page 6-51.
Refer to "SHIFT SHAFT" on page 6-54.
Refer to "GENERATOR AND STARTER
CLUTCH" on page 6-66.
1
1
1
7
2
3
1
1
2
6-72
CRANKCASE
12
7
9
8
Remarks