Yamaha XV19SX(C), Service Manual

Page: 48 / 494

TIGHTENING TORQUES
2-21
EAS20340
ENGINE TIGHTENING TORQUES
Item
Thread
size
Q’ty Tightening torque Remarks
Cylinder head nut M12 8 60 Nm (6.0 m·kg, 43 ft·lb)
Cylinder head stud bolt (exhaust
pipe)
M8 4 15 Nm (1.5 m·kg, 11 ft·lb)
Spark plug M12 4 18 Nm (1.8 m·kg, 13 ft·lb)
Engine temperature sensor — 1 20 Nm (2.0 m·kg, 14 ft·lb)
Rocker arm base bolt M6 4 10 Nm (1.0 m·kg, 7.2 ft·lb)
Rocker arm base bolt M8 8 24 Nm (2.4 m·kg, 17 ft·lb)
Cylinder head cover bolt M6 28 10 Nm (1.0 m·kg, 7.2 ft·lb)
Connecting rod bolt (1st) M8 4 15 Nm (1.5 m·kg, 11 ft·lb)
See
NOTE.
Connecting rod bolt (final) M8 4 Specified angle 125–135°
See
NOTE.
Right balancer driven gear bolt M10 1 40 Nm (4.0 m·kg, 29 ft·lb)
Left balancer drive gear bolt M10 1 40 Nm (4.0 m·kg, 29 ft·lb)
Left balancer driven gear housing
screw
M6 6 10 Nm (1.0 m·kg, 7.2 ft·lb)
Left balancer weight bolt M6 3 10 Nm (1.0 m·kg, 7.2 ft·lb)
Left balancer idle gear shaft bolt M6 3 10 Nm (1.0 m·kg, 7.2 ft·lb)
Camshaft driven gear bolt M10 1 60 Nm (6.0 m·kg, 43 ft·lb)
Camshaft drive gear bolt M10 1 60 Nm (6.0 m·kg, 43 ft·lb)
Front cylinder camshaft gear bolt M10 1 40 Nm (4.0 m·kg, 29 ft·lb)
Locknut (rocker arm adjusting
screw)
M7 4 20 Nm (2.0 m·kg, 14 ft·lb)
Valve lifter case bolt M6 4 10 Nm (1.0 m·kg, 7.2 ft·lb)
Oil filter bolt M18 1 70 Nm (7.0 m·kg, 50 ft·lb)
Oil filter cartridge M20 1 17 Nm (1.7 m·kg, 12 ft·lb)
Oil pipe 1 union bolt M10 2 21 Nm (2.1 m·kg, 15 ft·lb)
Oil pipe 1 union bolt*1 M8 1 18 Nm (1.8 m·kg, 13 ft·lb)
Oil pipe 1 union bolt*2 M8 1 17 Nm (1.7 m·kg, 12 ft·lb)
Oil filter bracket bolt M6 4 10 Nm (1.0 m·kg, 7.2 ft·lb)
Oil pipe bolt M6 2 10 Nm (1.0 m·kg, 7.2 ft·lb)
Oil delivery pipe 2 bolt M6 3 10 Nm (1.0 m·kg, 7.2 ft·lb)
Engine oil pump driven gear
stopper bolt
M6 2 10 Nm (1.0 m·kg, 7.2 ft·lb)
Oil pipe 3 bolt M6 5 10 Nm (1.0 m·kg, 7.2 ft·lb)
Oil pump bolt (crankcase) M8 3 24 Nm (2.4 m·kg, 17 ft·lb)
Oil pipe 2 bolt M6 3 10 Nm (1.0 m·kg, 7.2 ft·lb)
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