Yamaha YZ450FA Automobile User Manual


 
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TIGHTENING TORQUES
TIGHTENING TORQUES
ENGINE
- marked portion shall be checked for torque tightening after break-in or before each race.
Part to be tightened Thread size Q'ty
Tightening torque
Nm m•kg ft•lb
Spark plug M10S × 1.0 1 13 1.3 9.4
Camshaft cap M6 × 1.0 8 10 1.0 7.2
Cylinder head blind plug screw M12 × 1.0 2 28 2.8 20
Oil passage plug M8 × 1.25 1 15 1.5 11
Cylinder head (stud bolt) M6 × 1.0 3 7 0.7 5.1
Cylinder head (bolt) M10 × 1.25 4 Refer to TIP.
*1
Cylinder head (bolt) M6 × 1.0 2 10 1.0 7.2
Cylinder head cover M6 × 1.0 3 10 1.0 7.2
Cylinder M6 × 1.0 1 10 1.0 7.2
Timing chain tensioner M6 × 1.0 2 10 1.0 7.2
Timing chain tensioner cap bolt M6 × 1.0 1 7 0.7 5.1
Timing chain guide stopper plate (exhaust side) M6 × 1.0 2 10 1.0 7.2
Exhaust pipe (nut) M6 × 1.0 3 10 1.0 7.2
Exhaust pipe and frame M8 × 1.25 1 20 2.0 14
Silencer M8 × 1.25 2 30 3.0 22
Silencer clamp (front) M8 × 1.25 1 12 1.2 8.7
Silencer clamp (rear) M8 × 1.25 1 16 1.6 11
Starter knob/Idle screw M12 × 1.0 1 2 0.2 1.4
Throttle body joint M6 × 1.0 2 10 1.0 7.2
Throttle body joint clamp M5 × 0.8 1 3 0.3 2.2
Air filter case M6 × 1.0 3 7 0.7 5.1
Air filter case cover M5 × 0.8 2 5 0.5 3.6
Air filter joint clamp M4 × 0.7 1 4 0.4 2.2
Throttle cable adjust bolt and locknut M6 × 0.75 1 4 0.4 2.9
Throttle cable (pull) M10 × 1.25 1 7 0.7 5.1
Throttle cable (return) M10 × 1.25 1 7 0.7 5.1
Throttle cable cover M5 × 0.8 2 4 0.4 2.9
Air duct M6 × 1.0 3 7 0.7 5.1
Radiator M6 × 1.0 4 10 1.0 7.2
Radiator hose clamp M6 × 1.0 8 2 0.2 1.4
Radiator pipe 1 M6 × 1.0 1 10 1.0 7.2
Radiator pipe 2 M6 × 1.0 1 10 1.0 7.2
Impeller M8 × 1.25 1 14 1.4 10
Water pump housing cover M6 × 1.0 4 10 1.0 7.2