Engine Tightening Torques - Yamaha SR400 2014 Service Manual

EAS20340

ENGINE TIGHTENING TORQUES

Item
Cylinder head cover bolt
Tappet cover bolt
Exhaust tappet cover bolt (right
side of the vehicle)
Cylinder head cover nut
Cylinder head nut (cap nut)
Cylinder head stud bolt (around
pistons): Long
Cylinder head stud bolt (right
side of the vehicle): Long
Cylinder head stud bolt: Short
Cylinder head cover nut
Cylinder head bolt
Spark plug
Cylinder nut
Cylinder stud bolt
Cylinder bolt
Oil check bolt (engine oil pres-
sure check)
Air induction system pipe holder
bolt
Tachometer gear bolt
Cylinder head cover plug
AC magneto nut
Valve clearance adjuster locknut
Camshaft sprocket bolt
Timing chain tensioner locknut
Thread
Q'ty
size
M6 3 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
M6 3 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
M10 4 38 Nm (3.8 m·kgf, 27 ft·lbf)
M10 1 38 Nm (3.8 m·kgf, 27 ft·lbf)
M10 4 18 Nm (1.8 m·kgf, 13 ft·lbf)
M8 2 15 Nm (1.5 m·kgf, 11 ft·lbf)
M10 1 18 Nm (1.8 m·kgf, 13 ft·lbf)
M8 2 20 Nm (2.0 m·kgf, 14 ft·lbf)
M6 2 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
M14 1 25 Nm (2.5 m·kgf, 18 ft·lbf)
M10 4 38 Nm (3.8 m·kgf, 27 ft·lbf)
M10 4 18 Nm (1.8 m·kgf, 13 ft·lbf)
M6 3 12 Nm (1.2 m·kgf, 8.7 ft·lbf)
M8 1 18 Nm (1.8 m·kgf, 13 ft·lbf)
M6 2 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
M6 1 7 Nm (0.7 m·kgf, 5.1 ft·lbf)
M14 1 15 Nm (1.5 m·kgf, 11 ft·lbf)
M12 1 65 Nm (6.5 m·kgf, 47 ft·lbf)
M8 2 27 Nm (2.7 m·kgf, 20 ft·lbf)
M10 1 35 Nm (3.5 m·kgf, 25 ft·lbf)
M18 1 38 Nm (3.8 m·kgf, 27 ft·lbf)
2-13
TIGHTENING TORQUES
Tightening torque Remarks
LT
E
E
Height
136.8–
139.3 mm
(5.39–
5.48 in)
Height
119.8–
122.3 mm
(4.72–
4.81 in)
Height
39.8–
42.3 mm
(1.57–
1.67 in)
E
Tighten
two
times.