2-13
TIGHTENING TORQUES
TIGHTENING TORQUES
ENGINE
△
- marked portion shall be checked for torque tightening after break-in or before each race.
Part to be tightened
Thread size
Q'ty
Tightening torque
Nm
m•kg
ft•lb
Spark plug
M10S × 1.0
1
13
1.3
9.4
Camshaft cap
M6 × 1.0
10
10
1.0
7.2
Cylinder head blind plug screw
M12 × 1.0
1
28
2.8
20
Cylinder head (stud bolt)
M6 × 1.0
2
7
0.7
5.1
Cylinder head (stud bolt)
M8 × 1.25
1
15
1.5
11
Cylinder head (bolt)
M9 × 1.25
4
38
3.8
27
Cylinder head (nut)
M6 × 1.0
2
10
1.0
7.2
Cylinder head cover
M6 × 1.0
2
10
1.0
7.2
Cylinder
M6 × 1.0
1
10
1.0
7.2
Balancer weight
M6 × 1.0
2
10
1.0
7.2
Balancer shaft driven gear
M14 × 1.0
1
50
5.0
36
Timing chain guide (intake side)
M6 × 1.0
2
10
1.0
7.2
Timing chain tensioner
M6 × 1.0
2
10
1.0
7.2
Timing chain tensioner cap bolt
M6 × 1.0
1
7
0.7
5.1
Impeller
M8 × 1.25
1
14
1.4
10
Radiator hose clamp
M6 × 1.0
10
2
0.2
1.4
Coolant drain bolt
M6 × 1.0
1
10
1.0
7.2
Water pump housing
M6 × 1.0
4
10
1.0
7.2
Radiator
M6 × 1.0
6
10
1.0
7.2
Radiator pipe
M6 × 1.0
1
10
1.0
7.2
Oil pump cover
M4 × 0.7
1
1.7
0.17
1.2
Oil pump
M6 × 1.0
3
10
1.0
7.2
Oil filter element drain bolt
M6 × 1.0
1
10
1.0
7.2
Oil filter element cover
M6 × 1.0
2
10
1.0
7.2
Oil strainer (crankcase)
M6 × 1.0
2
10
1.0
7.2
Oil delivery pipe 1 (M10)
M10 × 1.25
1
20
2.0
14
Oil delivery pipe 1 (M8)
M8 × 1.25
2
18
1.8
13
△
Oil hose
M6 × 1.0
2
8
0.8
5.8
Oil hose clamp
—
1
2
0.2
1.4
Oil strainer (oil tank)
M6 × 1.0
1
9
0.9
6.5
Oil tank drain bolt
M8 × 1.25
1
18
1.8
13
Oil tank (upper)
M6 × 1.0
1
4
0.4
2.9
Oil tank and frame
M6 × 1.0
3
9
0.9
6.5
Carburetor joint clamp
M5 × 0.8
1
3
0.3
2.2
Summary of Contents for 2011 YZ250FA
Page 6: ...YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY ...
Page 10: ...MEMO ...
Page 51: ......
Page 52: ...2 20 LUBRICATION DIAGRAMS LUBRICATION DIAGRAMS ...
Page 54: ...2 22 LUBRICATION DIAGRAMS ...
Page 56: ...2 24 CABLE ROUTING DIAGRAM CABLE ROUTING DIAGRAM A B A C B C ...
Page 60: ...2 28 CABLE ROUTING DIAGRAM C A B B A C ...
Page 62: ...2 30 CABLE ROUTING DIAGRAM ...
Page 64: ...2 32 CABLE ROUTING DIAGRAM A C B C B A ...
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