Yamaha WR450F(R) Owner's Service Manual page 86

Part to be tightened
Spark plug
Camshaft cap
Cylinder head blind plug screw
Cylinder head (stud bolt)
(bolt)
(nut)
Cylinder head cover
Cylinder
Timing chain tensioner
Tensioner cap bolt
Timing chain guide (rear)
Exhaust pipe (nut)
(bolt)
Silencer
Silencer clamp
Exhaust pipe protector
Spark arrester (for USA)
Silencer end pipe (for USA)
Carburetor joint clamp (cylinder head side)
Carburetor joint clamp (carburetor side)
Air filter case
Air filter joint clamp
Air filter joint and air filter case
Throttle cable (pull)
Throttle cable (return)
Throttle cable cover
Hot starter plunger
Radiator panel (upper)
Radiator
Radiator hose clamp
Radiator pipe 1, 2
Impeller
Water pump housing cover
Coolant drain bolt
Oil pump cover
Oil pump
Engine oil drain bolt (oil filter)
Oil filter cover
Oil delivery pipe 1
Oil delivery pipe 2
Oil hose
MAINTENANCE SPECIFICATIONS
Thread size
2 - 11
Q'ty
M10S × 1.0
1
M6 × 1.0
10
M12 × 1.0
1
M6 × 1.0
2
M8 × 1.25
1
M10 × 1.25
4
M6 × 1.0
2
M6 × 1.0
2
M6 × 1.0
1
M6 × 1.0
2
M6 × 1.0
1
M6 × 1.0
2
M8 × 1.25
1
M8 × 1.25
1
M8 × 1.25
2
M8 × 1.25
1
M6 × 1.0
3
M6 × 1.0
3
M6 × 1.0
1
M5 × 0.8
1
M4 × 0.7
1
M6 × 1.0
2
M6 × 1.0
1
M5 × 0.8
1
M6 × 1.0
1
M12 × 1.0
1
M5 × 0.8
2
M12 × 1.0
1
M6 × 1.0
2
M6 × 1.0
6
M6 × 1.0
8
M10 × 1.0
2
M8 × 1.25
1
M6 × 1.0
3
M6 × 1.0
1
M4 × 0.7
1
M6 × 1.0
3
M6 × 1.0
1
M6 × 1.0
2
M10 × 1.25
1
M8 × 1.25
2
M6 × 1.0
1
M6 × 1.0
2
SPEC
Tightening torque
Nm m·kg ft·lb
13 1.3 9.4
10 1.0 7.2
37 3.7 27
7 0.7 5.1
15 1.5 11
1
Refer to NOTE.*
10 1.0 7.2
10 1.0 7.2
10 1.0 7.2
10 1.0 7.2
7 0.7 5.1
10 1.0 7.2
13 1.3 9.4
24 2.4 17
35 3.5 25
20 2.0 14
10 1.0 7.2
10 1.0 7.2
10 1.0 7.2
3 0.3 2.2
3 0.3 2.2
8 0.8 5.8
3 0.3 2.2
4 0.4 2.9
4 0.4 2.9
11 1.1 8.0
4 0.4 2.9
2 0.2 1.4
10 1.0 7.2
10 1.0 7.2
2 0.2 1.4
10 1.0 7.2
14 1.4 10
10 1.0 7.2
10 1.0 7.2
2 0.2 1.4
10 1.0 7.2
10 1.0 7.2
10 1.0 7.2
20 2.0 14
18 1.8 13
10 1.0 7.2
10 1.0 7.2