Yamaha YFM660FS Grizzly 4x4 Supplementary Service Manual page 118

Tightening torques
Part to be tightened
Cylinder head (exhaust pipe)
Cylinder head
Spark plug
Cylinder head cover
Camshaft end cap
Oil check bolt
Tappet cover (exhaust)
Tappet cover (intake)
Cylinder
Timing chain tensioner
Timing chain tensioner cap
Timing chain guide (intake)
Camshaft sprocket
Rocker arm shaft
Valve adjusting screw
Radiator
Coolant drain bolt
Engine oil drain bolt
Oil delively pipe 1
Oil delively pipe 2
Oil delively pipe 3
Oil filter cartridge
Oil filter bolt
Oil pump assembly
Oil strainer
Relief valve
Carburetor joint
Maffler and exhaust pipe
Exhaust pipe protector
Exhaust pipe
Maffler
Exhaust pipe stay
Recoil starter assembly
Starter pulley
Crankcase cover
Oil seal retainer
Drive belt cover
Bearing housing
MAINTENANCE SPECIFICATIONS
Part Thread
name size
M8
Stad bolt
Bolt M9
Bolt M9
Bolt M6
— M12
Bolt M6
Bolt M6
M6
Union bolt
— M32
Bolt M6
Bolt M10
Bolt M10
Bolt M6
Bolt M6
Bolt M6
Bolt M6
Bolt M7
Bolt M6
Nut M6
Bolt M6
Bolt M6
Bolt M14
M8
Union bolt
M14
Union bolt
M10
Union bolt
Bolt M6
— M20
M20
Union bolt
Bolt M6
Bolt M6
Bolt M6
Bolt M6
Bolt M8
Bolt M6
Nut M8
Bolt M8
Bolt M6
Bolt M6
Bolt M10
Bolt M6
Screw M5
Bolt M6
Bolt M6
2 - 12
SPEC
Tightening torque
Q'ty
Nm m·kg ft·lb
4 15 1.5 11
4 38 3.8 27
2 38 3.8 27
1 10 1.0 7.2
1 18 1.8 13
17 10 10 7.2
1 10 1.0 7.2
1 7 0.7 5.1
2 12 1.2 8.7
4 10 1.0 7.2
2 42 4.2 30
2 42 4.2 30
2 10 1.0 7.2
2 10 1.0 7.2
1 7 0.7 5.1
2 8 0.8 5.8
2 20 2.0 14
2 10 1.0 7.2
5 14 1.4 10
2 7 0.7 5.1
1 10 1.0 7.2
1 30 3.0 22
2 18 1.8 13
2 35 3.5 25
1 20 2.0 14
1 10 1.0 7.2
1 17 1.7 12
1 63 6.3 46
3 10 1.0 7.2
1 10 1.0 7.2
2 10 1.0 7.2
4 10 1.0 7.2
1 20 2.0 14
6 11 1.1 8
4 14 1.4 10
1 20 2.0 14
2 14 1.4 10
4 14 1.4 10
1 55 5.5 40
13 10 1.0 7.2
3 7 0.7 5.1
14 10 1.0 7.2
4 10 1.0 7.2
Remarks
LT
E
LT