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TIGHTENING TORQUES
2-15
EAS20340
ENGINE TIGHTENING TORQUES
Item
Thread
size
Q’ty Tightening torque Remarks
Cylinder head bolt (upper) M8 4 24 Nm (2.4 m·kg, 18 ft·lb)
See TIP
Cylinder head bolt M8 2 20 Nm (2.0 m·kg, 15 ft·lb)
Camshaft lock plate bolt M6 2 8 Nm (0.8 m·kg, 5.9 ft·lb)
Cylinder head side cover bolt (1 and 2) M55 2 18 Nm (1.8 m·kg, 13 ft·lb)
Cylinder head side cover bolt 3 M6 2 10 Nm (1.0 m·kg, 7.4 ft·lb)
Cylinder head breather plate bolt M6 2 10 Nm (1.0 m·kg, 7.4 ft·lb)
Spark plug M12 1 18 Nm (1.8 m·kg, 13 ft·lb)
Cylinder head stud bolt M8 2 15 Nm (1.5 m·kg, 11 ft·lb)
Oil gallery bolt M6 1 6 Nm (0.6 m·kg, 4.4 ft·lb)
Carburetor joint bolt M6 2 10 Nm (1.0 m·kg, 7.4 ft·lb)
Plate 2 bolt M6 2 12 Nm (1.2 m·kg, 8.9 ft·lb)
Cylinder bolt M6 2 10 Nm (1.0 m·kg, 7.4 ft·lb)
Pickup coil rotor bolt M10 1 60 Nm (6.0 m·kg, 44 ft·lb)
Balancer weight gear nut M12 1 55 Nm (5.5 m·kg, 41 ft·lb)
Use a lock
washer.
Valve clearance adjusting locknut M6 2 14 Nm (1.4 m·kg, 10 ft·lb)
Camshaft sprocket bolt M10 1 60 Nm (6.0 m·kg, 44 ft·lb)
Timing chain tensioner bolt M6 2 10 Nm (1.0 m·kg, 7.4 ft·lb)
Timing chain tensioner cap bolt M6 1 8 Nm (0.8 m·kg, 5.9 ft·lb)
Timing chain guide bolt (intake side) M6 2 8 Nm (0.8 m·kg, 5.9 ft·lb)
Oil filter element cover bolt M6 3 10 Nm (1.0 m·kg, 7.4 ft·lb)
Oil delivery pipe and right crankcase
cover union bolt
M10 1 20 Nm (2.0 m·kg, 15 ft·lb)
Oil delivery pipe and cylinder union bolt M8 1 17 Nm (1.7 m·kg, 13 ft·lb)
Oil pump assembly screw M6 3 6 Nm (0.6 m·kg, 4.4 ft·lb)
Carburetor joint clamp screw (front) M4 2 4 Nm (0.4 m·kg, 3.0 ft·lb)
Carburetor joint clamp screw (rear) M4 1 4 Nm (0.4 m·kg, 3.0 ft·lb)
Exhaust pipe nut M8 2 18 Nm (1.8 m·kg, 13 ft·lb)
Muffler joint bolt M8 1 20 Nm (2.0 m·kg, 15 ft·lb)
Muffler bolt M8 2 34 Nm (3.4 m·kg, 25 ft·lb)
Right crankcase cover bolt M6 13 10 Nm (1.0 m·kg, 7.4 ft·lb)
Left crankcase cover bolt M6 9 10 Nm (1.0 m·kg, 7.4 ft·lb)
Crankcase bolt M6 12 10 Nm (1.0 m·kg, 7.4 ft·lb)
Crankcase nut M10 1 40 Nm (4.0 m·kg, 30 ft·lb)
AC magneto lead clamp bolt M5 1 7 Nm (0.7 m·kg, 5.2 ft·lb)
Engine oil drain bolt M12 1 20 Nm (2.0 m·kg, 15 ft·lb)
Ground lead, clutch cable holder bolt M6 1 10 Nm (1.0 m·kg, 7.4 ft·lb)
Neutral switch lead clamp bolt M6 1 10 Nm (1.0 m·kg, 7.4 ft·lb)
Starter idle gear cover bolt M6 3 10 Nm (1.0 m·kg, 7.4 ft·lb)
Starter clutch bolt M8 3 30 Nm (3.0 m·kg, 22 ft·lb)
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