4-8
SPEC
TIGHTENING TORQUES
TIGHTENING TORQUES
Item Thread size
Tightening torque
Nm (m·kgf, ft·lbf)
Air filter cover nut M6 × 1.0 1.6 (0.16, 1.2)
Air filter element nut M6 × 1.0 0.9 (0.09, 0.65)
Duct bolt M6 × 1.0 7 (0.7, 5.1)
Duct nut M8 × 1.25 15 (1.5, 11)
Fuel tank bolt M6 × 1.0 10 (1.0, 7.2)
Fuel tank stay bolt M8 × 1.25 29 (2.9, 21)
Fuel cock
M10 × 1.25
6 (0.6, 4.3)
Fuel cock screw — 0.8 (0.08, 0.58)
Strainer cup — 1.3 (0.13, 0.94)
Muffler bolt M8 × 1.25 20 (2.0, 14)
Muffler nut M8 × 1.25 20 (2.0, 14)
Muffler cover bolt
M6 × 1.0
10 (1.0, 7.2)
Spark arrester screw
—
3.5 (0.35, 2.5)
Recoil starter bolt M6 × 1.0 7 (0.7, 5.1)
Drive plate screw M6 × 1.0 5.4 (0.54, 3.9)
Flywheel cover bolt M6 × 1.0 7 (0.7, 5.1)
TCI unit bolt M6 × 1.0 10 (1.0, 7.2)
Flywheel nut
M18 × 1.5
120 (12, 87)
Cylinder air shroud plate bolt M6 × 1.0 7 (0.7, 5.1)
Governor arm bolt M6 × 1.0 8 (0.8, 5.8)
Throttle lever assembly bolt M6 × 1.0 7 (0.7, 5.1)
Throttle lever assembly plate
screw
M5 × 0.8 1.1 (0.11, 0.80)
Throttle lever assembly wire
bolt
M4 × 0.7 1.1 (0.11, 0.80)
Oil warning unit screw M6 × 1.0 4.5 (0.45, 3.3)
Oil warning light nut M10 × 1.0
0.7 (0.07, 0.51)
Engine switch screw M6 × 1.0 4.5 (0.45, 3.3)
Spark plug M14 × 1.25 20 (2.0, 14)
Cylinder head cover bolt M6 × 1.0 11 (1.1, 8.0)
Valve adjuster locknut M5 × 0.5
7 (0.7, 5.1)
Rocker arm shaft screw M5 × 0.8 2.3 (0.23, 1.7)
Cylinder head bolt M10 × 1.25
1st: 12 (1.2, 8.7)
2nd: 50 (5.0, 36)
Exhaust stud bolt M8 × 1.25 11 (1.1, 8.0)
Crankcase cover bolt M8 × 1.25
1st: 12 (1.2, 8.7)
2nd: 30 (3.0, 22)
Oil level switch bolt M6 × 1.0 10 (1.0, 7.2)
Oil level switch clamp bolt M6 × 1.0 10 (1.0, 7.2)
7HC-F8197-11.indb 8 2015/09/01 14:08:23