112
Appendix 2
TIGHTENING TOrQUE Of mAIN
THrEADED CoUPLINGs, kGF•M
Bolts of crankcase cylinder head (soft gasket of cylinder head)
pretension
holding min. 2 minutes
70-75° angle tightening
6.9–8.2
Bolts of crankcase cylinder head (rigid gasket of cylinder head)
pretension
holding min. 1 minute
90° angle tightening
3.3–3.7
Valve cap bolts
0.5–0.7
Chain cap screws
2.0–2.5
Bolts of front cylinder head cap
1.2–1.8
Attachment of ventilator drive sleeve to hub
5.0–6.0
Bolt between engine front struts and frame brackets
5.0–6.2
Bolts between engine front strut brackets and crankcase
2.8–3.6
Bolt between engine front strut and crankcase bracket
9.0–11.0
nuts between engine rear struts and brackets with cottering
3.2
nuts between engine rear struts brackets and frame
2.8–3.6
Crankshaft coupling bolt
17–20
Screws of throttle heating hoses clamps
0.1–0.3
Inlet pipe nuts
2.9–3.6
Exhaust manifold nuts
2.0–2.5
Self-locking nuts of inlet pipe
4.6–5.1
Oil housing bolts
1.2–1.8
Spark plugs
2.1–3.1
Inlet manifold bolts and nuts
2.0–2.5
Starter motor bolts
4.4–5.6
Bolts of cooling system pump pulley
1.4–1.8
Water pump screws
2.0–2.5
Bolt between water pump and chain cap
1.9–2.3
Bolts of engine fuel pipes
0.6–0.9
Screws of throttle inlet tube
1.2–1.8
Thermostat housing screws
2.0–2.5
Steel fuel pipe adapters
2.0–2.5
Clamps of power system rubber hoses
2.5–3.5
