Yamaha WR250F(S), Owner'S Service Manual

Page: 90 / 864

MAINTENANCE SPECIFICATIONS
2 - 11
SPEC
NOTE:
- marked portion shall be checked for torque tightening after break-in or before each race.
Silencer M8
×
1.25 2 35 3.5 25
Silencer clamp M8
×
1.25 1 16 1.6 11
Spark arrester (for USA) M6
×
1.0 3 10 1.0 7.2
Silencer end pipe (for USA) M6
×
1.0 1 10 1.0 7.2
Crankcase M6
×
1.0 11 12 1.2 8.7
Crankcase bearing stopper M6
×
1.0 11 10 1.0 7.2
Crankcase bearing stopper (crankshaft) M6
×
1.0 4 10 1.0 7.2
Left crankcase cover M6
×
1.0 8 10 1.0 7.2
Idle gear cover (starter motor) M6
×
1.0 3 10 1.0 7.2
Idle gear plate M6
×
1.0 2 10 1.0 7.2
Right crankcase cover M6
×
1.0 8 10 1.0 7.2
Clutch cover M6
×
1.0 7 10 1.0 7.2
Crankcase oil drain bolt M10
×
1.25 1 20 2.0 14
Drive chain sprocket cover M6
×
1.0 2 8 0.8 5.8
Kick shaft ratchet wheel guide M6
×
1.0 2 12 1.2 8.7
Kickstarter crank M8
×
1.25 1 33 3.3 24
Primary drive gear M18
×
1.0 1 75 7.5 54
Clutch spring M6
×
1.0 5 8 0.8 5.8
Clutch boss M16
×
1.0 1 60 6.0 43
Push lever shaft M6
×
1.0 1 10 1.0 7.2
Drive sprocket M18
×
1.0 1 75 7.5 54
Drive axle oil seal stopper M6
×
1.0 2 10 1.0 7.2
Segment M8
×
1.25 1 30 3.0 22
Shift guide M6
×
1.0 2 10 1.0 7.2
Stopper lever M6
×
1.0 1 10 1.0 7.2
Shift pedal M6
×
1.0 1 12 1.2 8.7
Part to be tightened Thread size Q’ty
Tightening torque
Nm m·kg ft·lb