Yamaha YZ450FX 2021 Owner's Service Manual page 269

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5. Install:
• Water pump housing "1"
• Water pump housing bolt "2"
Water pump housing bolt
10 N·m (1.0 kgf·m, 7.4 lb·ft)
• Washer "3"
New
• Coolant drain bolt "4"
Coolant drain bolt
10 N·m (1.0 kgf·m, 7.4 lb·ft)
2
4
1
2
1
2
3
6-8
WATER PUMP