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78
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17-3 TIGHTENING TORQUE
ITEM
Tightening Torque
N
・
m kgf
・
cm ft
・
lb
Cylinder head bolts
M10×75 flange bolt
Re-use 29.0 - 31.0 290 - 310 21.0 - 22.4
When replace to new
cylinder head and
flange bolts
37.0 - 39.0 370 - 390 26.7 - 28.2
M8×35 flange bolt 17.0 - 19.0 170 - 190 12.3 - 13.7
Connecting rod cap bolts 22.5 - 27.5 225 - 275 16.3 - 19.9
Flywheel nut 100.0 - 120.0 1000 - 1200 72.3 - 86.8
Main bearing cover bolts 22.0 - 24.0 220 - 240 16.2 - 17.7
Spark plug
New 12.0 - 15.0 120 - 150 8.7 - 10.8
Re-tightening 23.0 - 27.0 230 - 270 16.6 - 19.5
Muffler nut 18.0 - 22.0 180 - 220 13.0 - 16.2
Ignition coil 7.0 - 9.0 70 - 90 5.1 - 6.5
Oil sensor (Option) 8.0 - 10.0 80 - 100 5.8 - 7.2
17-4 AIR GAP AND CLEARANCE
ITEM
Clearance
mm in.
Valve clearance (Intake
,
Exhaust) 0.12 - 0.15 0.0047 - 0.0059
Air gap (Ignition and flywheel) 0.3 - 0.5 0.012 - 0.020
Electrode gap (Spark plug) 0.6 - 0.7 0.024 - 0.028
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