Yamaha XC125 Service Manual page 163

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Tightening Torque
Part Name Thread Size Q'ty
Nm m°kg ft,lb
Cylinder Head M 8 x 1.25 4 22 2.2 16
M 6 x 1.0 2 10 1.0 7.2
Valve Adjuster Locknut M 5 x 0.5 2 7 0.7 5.1
Valve Cover 2 7 0.7 5.1
Cam Shaft Bearing Stopper M 6 x 1.0 1 7 0.7 5.1
Cam Sprocket M 8 x 1.25 1 28 2.8 20
Cam Sprocket Cover M 6 x 1.0 2 12 1.2 8.7
Cam Chain Tensioner - Body M 6 x 1.0 2 10 1.0 7.2
- Plug M 8 x 1.25 1 8 0.8 5.8
Spark Plug MIO x 1.0 1 12.5 1.25 9.0
Air Shroud M 6 x 1.0 3 7 0.7 5.1
Intake Manuhold M 6 x 1.0 2 10 1.0 7.2
Muffler - Exhaust M 6 x 1.0 2 10 1.0 7.2
- Body M 8 x 1.25 1 16 1.6 11
Crankcase M 6 x 1.0 9 12 1.2 8.7
Crankcase Cover-1 M 6 x 1.0 9 10 1.0 7.2
Crankcase Cover-2 M 6 x 1.0 8 12 1.2 8.7
Cam Chain Case Cover M 6 x 1.0 2 7 0.7 5.1
Oil Pump M 6 × 1.0 3 7 0.7 5.1
Drain Plug - Engine M12 x 1.5 1 20 2.0 14
- Transnission M 8 x 1.25 1 16 1.6 11
Primary Sheave M12 x 1.0 1 55 5.5 40
Secondary Sheave - Clutch M36 x 1.5 1 90 9.0 65
- Clutch Housing M14 x 1.25 1 60 6.0 43
Crankcase Cover M 6 x 1.0 23 10 1.0 7.2
Air Duct M 6 x 1.O 3 7 0.7 5.1
Air Filter M 6 x 1.0 2 7 0.7 5.1
Fuel Cock M 6 x 1.0 2 7 0.7 5.1
Stater Assembly M 6 x 1.0 4 7 0.7 5,1
Flywheel M12 x 1.25 1 70 7.0 50
Cooling Fan M 6 x 1.0 3 7 0.7 5.1
Starter Motor M 6 x 1.0 2 7 0.7 5.1
Crankcase Tightening Sequence:
® (9®
H
7-8