SERVICE INFORMATION
2-5
TORQUE VALUES
ENGINE
FRAME
STANDARD TORQUE VALUES
Item
Thread Dia.
and pitch (mm)
Torque values
Remarks
N·m kgf·m lbf·ft
Spark plug M14 x 1.25 18 1.8 13
Drain plug bolt M12 x 1.5 22.5 2.3 17
Recoil spring retainer center screw M6 x 1.0 5.4 0.55 4.0
Cylinder head bolt M10 x 1.25 35 3.6 26 Apply engine oil to the threads
and seating surface.
Rocker arm pivot adjusting nut M6 x 0.5 10 1.0 7
Rocker arm pivot special bolt M8 x 1.25 24 2.4 18 Apply engine oil to the threads
and seating surface.
Flywheel special nut M16 x 1.5 113 11.5 83 Degrease the crankshaft and
flywheel tapered surface.
Apply engine oil to the threads
and seating surface.
Crankcase cover bolt M8 x 1.25 24 2.4 18
Connecting rod special bolt M8 x 1.25 14 1.4 10 Apply engine oil to the threads
and seating surface.
Oil level switch joint nut M10 x 1.25 10 1.0 7
Item
Thread Dia.
and pitch (mm)
Torque values
Remarks
N·m kgf·m lbf·ft
Rubber mount nut M8 x 1.25 24 2.4 18
Engine mount nut M10 x 1.25 34 3.5 25
Fuel valve nut M14 x 1.0 13.5 1.4 10
Fuel meter screw M5 x 0.8 4 0.41 3.0
Air cleaner base nut M6 x 1.0 8.5 0.87 6.3
Air cleaner case bolt M5 x 0.8 5.4 0.55 4.0
Exhaust pipe nut M8 x 1.25 24 2.4 18
Rear housing cover bolt M6 x 1.0 9.8 1.00 7.2
Rotor bolt M10 x 1.25 44 4.5 32 Degrease the rotor and crank-
shaft tapered surface.
Front housing bolt M8 x 1.25 24 2.4 18
Generator cooling fan screw M5 x 0.8 5 0.51 3.7
Control panel screw M6 x 1.0 4.4 0.45 3.2
Control panel tapping screw M5 3.4 0.35 2.5
Item Thread dia. (mm)
Torque values
N·m kgf·m lbf·ft
Screw 4 mm 2.0 0.20 1.5
5 mm 4.3 0.44 3.2
6 mm 9 0.92 6.6
Bolt and nut 5 mm 5.3 0.54 3.9
6 mm 10 1.0 7
8 mm 22 2.2 16
10 mm 34 3.5 25
12 mm 54 5.5 40
Flange bolt and nut 5 mm 5.3 0.54 3.9
6 mm 12 1.2 9
8 mm 23 2.3 17
10 mm 39 4.0 29
SH (Small head) flange bolt 6 mm 9 0.92 6.6
CT (Cutting threads) flange bolt (Retightening) 5 mm 5.4 0.55 4.0
6 mm 12 1.2 9
82Z30000.book 5 ページ ２０１０年６月２５日 金曜日 午後５時５０分
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