Yamaha YZ250F(X) Owner's Service Manual page 31

Part to be tightened
Oil tank drain bolt
Oil tank (upper)
Oil tank and frame
Carburetor joint clamp
Air filter joint clamp
Throttle cable adjust bolt and locknut
Throttle cable (pull)
Throttle cable (return)
Throttle cable cover
Hot starter plunger
Hot starter cable adjust bolt and locknut
△
Air filter case
Air filter joint and air filter case
Air filter element
Exhaust pipe
△
Exhaust pipe protector
△
Silencer
Silencer clamp
Crankcase
Crankcase bearing stopper
Crankcase bearing stopper (crankshaft)
Oil level check window holder
Left crankcase cover
Right crankcase cover
Clutch cover
Crankcase oil drain bolt
△
Crankshaft end accessing screw
△
Timing mark accessing screw
Drive chain sprocket cover
Kick shaft ratchet wheel guide
Kickstarter crank
Primary drive gear
Clutch spring
Clutch boss
Clutch cable locknut
Clutch cable adjust bolt and locknut
Push lever shaft
Drive sprocket
Drive axle oil seal stopper
Segment
Shift guide
Stopper lever
Shift pedal
TIGHTENING TORQUES
Thread size Q'ty
M8 × 1.25
M6 × 1.0
M6 × 1.0
M4 × 0.7
M6 × 1.0
M6 × 0.75
M6 × 1.0
M12 × 1.0
M5 × 0.8
M12 × 1.0
M6 × 0.75
M6 × 1.0
M5 × 0.8
M6 × 1.0
M8 × 1.25
M6 × 1.0
M8 × 1.25
M8 × 1.25
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M10 × 1.25
M32 × 1.5
M14 × 1.5
M6 × 1.0
M6 × 1.0
M8 × 1.25
M18 × 1.0
M6 × 1.0
M16 × 1.0
M8 × 1.25
M6 × 0.75
M6 × 1.0
M18 × 1.0
M6 × 1.0
M8 × 1.25
M6 × 1.0
M6 × 1.0
M6 × 1.0
2-11
Tightening torque
Nm m•kg
1 18 1.8
1 7 0.7
3 9 0.9
2 3 0.3
1 3 0.3
1 4 0.4
1 4 0.4
1 11 1.1
2 4 0.4
1 2 0.2
1 4 0.4
2 8 0.8
1 4 0.4
1 2 0.2
2 20 2.0
3 10 1.0
2 30 3.0
1 16 1.6
11 12 1.2
11 10 1.0
4 14 1.4
1 10 1.0
8 10 1.0
8 10 1.0
7 10 1.0
1 20 2.0
1 — —
1 — —
2 8 0.8
2 12 1.2
1 33 3.3
1 75 7.5
5 10 1.0
1 60 6.0
1 7 0.7
1 4 0.4
1 10 1.0
1 75 7.5
2 10 1.0
1 30 3.0
2 10 1.0
1 10 1.0
1 12 1.2
ft•lb
13
5.1
6.5
2.2
2.2
2.9
2.9
8.0
2.9
1.4
2.9
5.8
2.9
1.4
14
7.2
22
11
8.7
7.2
10
7.2
7.2
7.2
7.2
14
—
—
5.8
8.7
24
54
7.2
43
5.1
2.9
7.2
54
7.2
22
7.2
7.2
8.7