Yamaha YZ450FP 2023, Owner'S Service Manual

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TIGHTENING TORQUES
2-15
TIP
Lower ring nut
1. First, tighten the lower ring nut approximately 38 N·m (3.8 kgf·m, 28 lb·ft) by using the steering nut
wrench, then loosen the lower ring nut one turn.
2. Retighten the lower ring nut 7 N·m (0.7 kgf·m, 5.2 lb·ft).
Drive chain support nut M6 2 7 N·m (0.7 kgf·m, 5.2 lb·ft)
Drive chain guide bolt M5 3 4.0 N·m (0.40 kgf·m, 3.0 lb·ft)
Fuel tank bolt (front side) M6 2 8 N·m (0.8 kgf·m, 5.9 lb·ft) 
Screw (fuel tank) M6 1 4.0 N·m (0.40 kgf·m, 3.0 lb·ft)
Fuel pump bolt M5 5 7 N·m (0.7 kgf·m, 5.2 lb·ft) 
Screw (fuel inlet pipe) M5 2 3.5 N·m (0.35 kgf·m, 2.6 lb·ft)
Seat set bracket screw M6 1 7 N·m (0.7 kgf·m, 5.2 lb·ft)
Seat bolt M6 2 13 N·m (1.3 kgf·m, 9.6 lb·ft) 
Side cover bolt (left) M6 2 7 N·m (0.7 kgf·m, 5.2 lb·ft) 
Side cover bolt (right) M6 2 7 N·m (0.7 kgf·m, 5.2 lb·ft) 
Shroud bolt (frame) M6 2 7 N·m (0.7 kgf·m, 5.2 lb·ft) 
Shroud bolt (air filter case) M6 2 7 N·m (0.7 kgf·m, 5.2 lb·ft) 
Shroud bolt (fuel tank) M6 2 7 N·m (0.7 kgf·m, 5.2 lb·ft) 
Shroud bolt (radiator guard) M6 2 7 N·m (0.7 kgf·m, 5.2 lb·ft) 
Front fender bolt M6 4 10 N·m (1.0 kgf·m, 7.4 lb·ft) 
Rear fender bolt (front side) M6 4 7 N·m (0.7 kgf·m, 5.2 lb·ft) 
Rear fender bolt (rear side) M6 2 16 N·m (1.6 kgf·m, 12 lb·ft) 
Screw (mud flap) — 2 1.3 N·m (0.13 kgf·m, 0.95 lb·ft) 
Number plate bolt M6 1 7 N·m (0.7 kgf·m, 5.2 lb·ft) 
Frame ground bolt (negative battery
lead)
M6 1 7 N·m (0.7 kgf·m, 5.2 lb·ft)
Ignition coil bracket bolt M6 2 7 N·m (0.7 kgf·m, 5.2 lb·ft)
Starter relay bolt M6 2 3.5 N·m (0.35 kgf·m, 2.6 lb·ft)
Battery box bolt M6 2 7 N·m (0.7 kgf·m, 5.2 lb·ft)
Item
Thread
size
Q’ty Tightening torques Remarks