Yamaha YZ250 2021, Owner'S Manual

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TIGHTENING TORQUES
2-12
TIP
Steering ring nut
1. First, tighten the steering ring nut approximately 38 N·m (3.8 kgf·m, 28 lb·ft) by using the steering nut
wrench, then loosen the steering ring nut one turn.
2. Retighten the steering ring nut 7 N·m (0.7 kgf·m, 5.2 lb·ft).
Fuel tank bolt M6 2 10 N·m (1.0 kgf·m, 7.4 lb·ft) 
Fuel cock screw M6 2 4.0 N·m (0.40 kgf·m, 3.0 lb·ft) 
Fuel tank screw (seat set side) M6 1 7 N·m (0.7 kgf·m, 5.2 lb·ft)
Fuel tank screw (fitting band side) M6 1 7 N·m (0.7 kgf·m, 5.2 lb·ft)
Fuel tank bracket bolt M6 4 7 N·m (0.7 kgf·m, 5.2 lb·ft)
Seat bolt M8 2 19 N·m (1.9 kgf·m, 14 lb·ft) 
Side cover bolt M6 2 7 N·m (0.7 kgf·m, 5.2 lb·ft) 
Air scoop bolt (fuel tank) M6 4 7 N·m (0.7 kgf·m, 5.2 lb·ft) 
Air scoop bolt (radiator guard) M6 2 6 N·m (0.6 kgf·m, 4.4 lb·ft) 
Front fender bolt M6 4 10 N·m (1.0 kgf·m, 7.4 lb·ft) 
Rear fender bolt (front side) M6 2 7 N·m (0.7 kgf·m, 5.2 lb·ft) 
Rear fender bolt (rear side) M6 2 12 N·m (1.2 kgf·m, 8.9 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)

Sidestand bolt (YZ250X) M10 1 25 N·m (2.5 kgf·m, 18 lb·ft)
Item
Thread
size
Q’ty Tightening torques Remarks
LT