Engine Tightening Torques - Yamaha YZ250 2022 Owner's Service Manual

EAM30203

ENGINE TIGHTENING TORQUES

TIP
- marked portion shall be checked for torque tightening after break-in or before each race.
Item
Spark plug
Cylinder head nut
Cylinder head stud bolt
Cylinder nut
Cylinder stud bolt
Power valve holder 2
Link rod screw
Push rod bolt
Thrust plate screw
Side holder screw
Power valve link lever bolt
Pulley bolt
Power valve cover screw
Governor fork screw
Power valve housing bolt
Impeller
Water pump housing cover bolt
Coolant drain bolt
Radiator bolt
Radiator guard bolt
Radiator hose clamp
Air filter element
Carburetor joint bolt
Air filter case bolt
Air filter guide clamp
Reed valve screw
Locknut (throttle cable handlebar
side)
Locknut (throttle cable carburetor
side)
Exhaust pipe bolt (front)
Exhaust pipe bolt (rear)
Exhaust pipe stay bolt (front)
Exhaust pipe stay bolt (rear)
Thread
Q'ty
size
M14S 1 20 N·m (2.0 kgf·m, 15 lb·ft)
M8 6 25 N·m (2.5 kgf·m, 18 lb·ft)
M8 6 13 N·m (1.3 kgf·m, 9.6 lb·ft)
M10 4 42 N·m (4.2 kgf·m, 31 lb·ft)
M10 4 13 N·m (1.3 kgf·m, 9.6 lb·ft)
M5 2 6 N·m (0.6 kgf·m, 4.4 lb·ft)
M5 2 6 N·m (0.6 kgf·m, 4.4 lb·ft)
M5 1 4.5 N·m (0.45 kgf·m, 3.3 lb·ft)
M5 1 6 N·m (0.6 kgf·m, 4.4 lb·ft)
M5 4 4.0 N·m (0.40 kgf·m, 3.0 lb·ft)
M4 1 4.0 N·m (0.40 kgf·m, 3.0 lb·ft)
M4 2 4.0 N·m (0.40 kgf·m, 3.0 lb·ft)
M5 4 4.0 N·m (0.40 kgf·m, 3.0 lb·ft)
M4 2 5 N·m (0.5 kgf·m, 3.7 lb·ft)
M5 4 4.5 N·m (0.45 kgf·m, 3.3 lb·ft)
M8 1 14 N·m (1.4 kgf·m, 10 lb·ft)
M6 4 10 N·m (1.0 kgf·m, 7.4 lb·ft)
M6 1 10 N·m (1.0 kgf·m, 7.4 lb·ft)
M6 4 10 N·m (1.0 kgf·m, 7.4 lb·ft)
M6 2 10 N·m (1.0 kgf·m, 7.4 lb·ft)
M6 8 1.5 N·m (0.15 kgf·m, 1.1 lb·ft)
M6 1 2.0 N·m (0.20 kgf·m, 1.5 lb·ft)
M6 5 10 N·m (1.0 kgf·m, 7.4 lb·ft)
M6 2 8 N·m (0.8 kgf·m, 5.9 lb·ft)
M5 1 3.5 N·m (0.35 kgf·m, 2.6 lb·ft)
M3 4 1.0 N·m (0.10 kgf·m, 0.73 lb·ft)
M8 1 7 N·m (0.7 kgf·m, 5.2 lb·ft)
M6 1 4.0 N·m (0.40 kgf·m, 3.0 lb·ft)
M6 1 14 N·m (1.4 kgf·m, 10 lb·ft)
M6 1 12 N·m (1.2 kgf·m, 8.9 lb·ft)
M8 1 25 N·m (2.5 kgf·m, 18 lb·ft)
M6 1 12 N·m (1.2 kgf·m, 8.9 lb·ft)
2-10
TIGHTENING TORQUES
Tightening torques Remarks
LT
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