Yamaha 2011 FZ8NA(C), Service Manual, Page: 46 / 478

TIGHTENING TORQUES
2-15
EAS20340
ENGINE TIGHTENING TORQUES
Item
Thread
size
Q’ty Tightening torque Remarks
Spark plug M10 4 13 Nm (1.3 m·kgf, 9.4 ft·lbf)
Cylinder head nut M10 10 See TIP.
Cylinder head bolt M6 2 12 Nm (1.2 m·kgf, 8.7 ft·lbf)
Cylinder head plug M18 3 42 Nm (4.2 m·kgf, 30 ft·lbf)
Camshaft caps bolt M6 20 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Cylinder head cover bolt M6 6 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Cylinder head stud bolt (exhaust
pipe)
M8 8 15 Nm (1.5 m·kgf, 11 ft·lbf)
Reed valve cover bolt M6 4 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Camshaft sprocket bolt M7 4 24 Nm (2.4 m·kgf, 17 ft·lbf)
Throttle body joint bolt M6 6 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Connecting rod cap bolt M8 8 See TIP.
Timing chain drive sprocket bolt M10 1 60 Nm (6.0 m·kgf, 43 ft·lbf)
Timing chain tensioner bolt M6 2 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Water pump outlet pipe bolt M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Water pump inlet pipe bolt (water
pump side)
M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Water pump inlet pipe bolt (front
side)
M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Oil/water pump drive sprocket
bolt
M6 1 15 Nm (1.5 m·kgf, 11 ft·lbf)
Oil pump bolt M6 2 12 Nm (1.2 m·kgf, 8.7 ft·lbf)
Water pump cover bolt M6 5 12 Nm (1.2 m·kgf, 8.7 ft·lbf)
Thermostat housing cover nut M6 2 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Thermostat inlet pipe bolt M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Oil cooler bolt M20 1 63 Nm (6.3 m·kgf, 46 ft·lbf)
Engine oil drain bolt M14 1 43 Nm (4.3 m·kgf, 31 ft·lbf)
Oil pipe bolt M6 2 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Oil strainer bolt M6 3 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Oil delivery pipe bolt M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Oil filter union bolt M20 1 80 Nm (8.0 m·kgf, 58 ft·lbf)
Oil filter M20 1 17 Nm (1.7 m·kgf, 12 ft·lbf)
Oil pan bolt M6 14 12 Nm (1.2 m·kgf, 8.7 ft·lbf)
Oil/water pump assembly drive
chain guide bolt
M6 2 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Air filter case cover screw — 11 2.0 Nm (0.20 m·kgf, 1.5 ft·lbf)
Throttle body joint clamp M5 4 2.3 Nm (0.23 m·kgf, 1.7 ft·lbf)
Funnel bolt M5 6 4.2 Nm (0.42 m·kgf, 3.0 ft·lbf)
Air filter case stay bolt M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Throttle cable bolt M6 2 4.5 Nm (0.45 m·kgf, 3.3 ft·lbf)
Cylinder head and exhaust pipe
nut
M8 8 20 Nm (2.0 m·kgf, 14 ft·lbf)
E
LT
E
LT
M
E
LT
LT
LT
LT
LT
LT
LT
E
LT
LT
LT
LS
LT