Tightening Torques; Engine Tightening Torques - Yamaha YBR250 2007 Service Manual

TIGHTENING TORQUES

ENGINE TIGHTENING TORQUES

Part to be tightened
Clutch push lever
Gearshift cam selector stopper
Clutch cable holder
Neutral switch
Crankcase oil drain screw
Speed sensor
Oil pump
Drive chain guide
Secondary shaft bearing plate
Valve clearance adjuster
Oil timing tube (cylinder side)
Drive shaft sprocket cover
One way starting gear
Stator assembly
Pulse coil holder
Stator assembly wire harness holder
Crankshaft (timing display)
Magneto rotor (timing display)
Oil hose to radiator
Radiator side brackets
Injection body clamp
Drive shaft mounting plate
Temperature
Injection body junction
Exhaust tube to cylinder head
A.I. System tube
Spark plug
Springs / Clutch housing pressure plate
Primary clutch
Balancer gear
Oil flow screw
Cylinder (drive side)
L = 65mm
Transmission chain sprocket
Right side cover
L = 55mm
L = 50mm
L = 35mm
L = 25mm
TIGHTENING TORQUE
Part name Thread
size
Bolt M8
Bolt M6
Bolt M6
Sensor M10
Plug M12
Bolt M6
Bolt M6
Bolt M6
Bolt M6
Nut M6
Bolt M8
Bolt M6
Bolt M8
Bolt M6
Bolt M5
Bolt M5
Plug M32
Plug M14
Bolt M6
Bolt M6
Bolt M4
Bolt M6
Sensor M8
Bolt M6
Stud M8
Bolt M6
Bolt M12
Bolt M6
Nut M16
Nut M12
Bolt M6
Bolt M6
Nut M18
Bolt M6
Bolt M7
Bolt M8
Bolt M9
2-17
SPEC
Tightening torque
Qty
N.m kgf.m ft.lb
1 12 1.2 8.9
1 10 1.0 7.2
1 10 1.0 7.2
1 20 2.0 14
1 20 2.0 14
1 10 1.0 7.2
3 7.0 0.7 5.1
2 8.0 0.8 5.9
1 10 1.0 7.2
2 14 1.4 10.3
1 17 1.7 12.5
2 10 1.0 7.2
3 30 3.0 22
3 10 1.0 7.2
2 7.0 0.7 5.1
1 7.0 0.7 5.1
1 4.0 0.4 2.9
1 4.0 0.4 2.9
4 10 1.0 7.2
2 7.0 0.7 5.1
1 2.0 0.2 1.4
2 10 1.0 7.2
1 9.0 0.9 6.6
2 10 1.0 7.2
2 15 1.5 11
2 10 1.0 7.2
1 18 1.8 13.3
4 8.0 0.8 5.9
1 75 7.5 55
1 55 5.5 40.5
1 7.0 0.7 5.1
2 10 1.0 7.2
1 110 11.0 81
1 10 1.0 7.2
3 10 1.0 7.2
1 10 1.0 7.2
8 10 1.0 7.2
Remarks
Use new
lock washer
Use new
lock washer
Use new
lock washer