Yamaha WR450F 2021 - Crankcase

CRANKCASE
5-63
EAM20116
CRANKCASE
Separating the crankcase
Order Job/Parts to remove Q’ty Remarks
Engine Refer to “ENGINE REMOVAL” on page 5-6.
Piston
Refer to “CYLINDER AND PISTON” on page
5-32.
Balancer Refer to “OIL PUMP” on page 5-58.
Segment Refer to “SHIFT SHAFT” on page 5-54.
Stator coil assembly Refer to “GENERATOR” on page 5-37.
1 Timing chain guide (exhaust side) 1
2 Timing chain guide stopper plate 1
3 Timing chain 1
4 Bolt [L = 45 mm (1.77 in)] 5
5 Bolt [L = 60 mm (2.36 in)] 4
6 Bolt [L = 75 mm (2.95 in)] 3
7 Right crankcase 1
8 Left crankcase 1
9 Dowel pin 2
10 Crankshaft 1
11 Oil nozzle 1
3
1
5
2
6
4
10
5
5
5
4
4
4
6
9
7
8
11
9
LT
LT
10 N・m (1.0 kgf・m, 7.4 lb・ft)
10 N・m (1.0 kgf・m, 7.4 lb・ft)
12 N・m (1.2 kgf・m, 8.9 lb・ft)
12 N・m (1.2 kgf・m, 8.9 lb・ft)
12 N・m (1.2 kgf・m, 8.9 lb・ft)
(3)
(4)
(5)
6