Tightening Torques - Yamaha 2011 YZ250FA Owner's Service Manual

TIGHTENING TORQUES

ENGINE
△ - marked portion shall be checked for torque tightening after break-in or before each race.
Part to be tightened
Spark plug
Camshaft cap
Cylinder head blind plug screw
Cylinder head (stud bolt)
Cylinder head (stud bolt)
Cylinder head (bolt)
Cylinder head (nut)
Cylinder head cover
Cylinder
Balancer weight
Balancer shaft driven gear
Timing chain guide (intake side)
Timing chain tensioner
Timing chain tensioner cap bolt
Impeller
Radiator hose clamp
Coolant drain bolt
Water pump housing
Radiator
Radiator pipe
Oil pump cover
Oil pump
Oil filter element drain bolt
Oil filter element cover
Oil strainer (crankcase)
Oil delivery pipe 1 (M10)
Oil delivery pipe 1 (M8)
△ Oil hose
Oil hose clamp
Oil strainer (oil tank)
Oil tank drain bolt
Oil tank (upper)
Oil tank and frame
Carburetor joint clamp
TIGHTENING TORQUES
Thread size Q'ty
M10S × 1.0 1
M6 × 1.0 10
M12 × 1.0 1
M6 × 1.0 2
M8 × 1.25 1
M9 × 1.25 4
M6 × 1.0 2
M6 × 1.0 2
M6 × 1.0 1
M6 × 1.0 2
M14 × 1.0 1
M6 × 1.0 2
M6 × 1.0 2
M6 × 1.0 1
M8 × 1.25 1
M6 × 1.0 10
M6 × 1.0 1
M6 × 1.0 4
M6 × 1.0 6
M6 × 1.0 1
M4 × 0.7 1
M6 × 1.0 3
M6 × 1.0 1
M6 × 1.0 2
M6 × 1.0 2
M10 × 1.25 1
M8 × 1.25 2
M6 × 1.0 2
— 1
M6 × 1.0 1
M8 × 1.25 1
M6 × 1.0 1
M6 × 1.0 3
M5 × 0.8 1
2-13
Tightening torque
Nm m•kg ft•lb
13 1.3 9.4
10 1.0 7.2
28 2.8 20
7 0.7 5.1
15 1.5 11
38 3.8 27
10 1.0 7.2
10 1.0 7.2
10 1.0 7.2
10 1.0 7.2
50 5.0 36
10 1.0 7.2
10 1.0 7.2
7 0.7 5.1
14 1.4 10
2 0.2 1.4
10 1.0 7.2
10 1.0 7.2
10 1.0 7.2
10 1.0 7.2
1.7 0.17 1.2
10 1.0 7.2
10 1.0 7.2
10 1.0 7.2
10 1.0 7.2
20 2.0 14
18 1.8 13
8 0.8 5.8
2 0.2 1.4
9 0.9 6.5
18 1.8 13
4 0.4 2.9
9 0.9 6.5
3 0.3 2.2