Yamaha WR450F 2021 - Chassis Tightening Torques

TIGHTENING TORQUES
2-14
EAM30204
CHASSIS TIGHTENING TORQUES
TIP
- marked portion shall be checked for torque tightening after break-in or before each race.
Item
Thread
size
Q’ty Tightening torques Remarks
Upper bracket pinch bolt M8 4 21 N·m (2.1 kgf·m, 15 lb·ft) 
Lower bracket pinch bolt M8 4 21 N·m (2.1 kgf·m, 15 lb·ft) 
Steering stem nut M24 1 145 N·m (14.5 kgf·m, 107 lb·ft) 
Upper handlebar holder bolt M8 4 28 N·m (2.8 kgf·m, 21 lb·ft) 
Lower handlebar holder nut M10 2 40 N·m (4.0 kgf·m, 30 lb·ft) 
Engine stop switch screw M3 1 0.5 N·m (0.05 kgf·m, 0.37 lb·ft)
Start switch M3 1 0.5 N·m (0.05 kgf·m, 0.37 lb·ft)
Lower ring nut M28 1 See TIP. 
Damper assembly (front fork) M51 2 30 N·m (3.0 kgf·m, 22 lb·ft)
Inner tube and adjuster M22 2 55 N·m (5.5 kgf·m, 41 lb·ft)
Base valve (front fork) M42 2 28 N·m (2.8 kgf·m, 21 lb·ft)
Adjuster (damper assembly) M12 2 29 N·m (2.9 kgf·m, 21 lb·ft)
Bleed screw (front fork) M5 2 1.3 N·m (0.13 kgf·m, 0.95 lb·ft)
Front fork protector bolt M6 6 5 N·m (0.5 kgf·m, 3.7 lb·ft) 
Speed sensor lead holder and speed
sensor lead bracket bolt
M6 1 7 N·m (0.7 kgf·m, 5.2 lb·ft)
Plate bolt M5 2 3.8 N·m (0.38 kgf·m, 2.8 lb·ft) 
Throttle grip cap screw M5 2 3.8 N·m (0.38 kgf·m, 2.8 lb·ft)
x4
FWD
3
3
1
1
4
4
2
2
LT