Yamaha YZ450FX 2019 Owner's Service Manual page 265

CRANKCASE
1
LT
2
5
3
2
4
6
5 6 5
5
6
4
4 4
4. 45 mm (1.77 in)
5. 60 mm (2.36 in)
6. 75 mm (2.95 in)
5-66