Yamaha 2004 YXR660 Service Manual page 264

FRONT CONSTANT VELOCITY JOINTS, DIFFERENTIAL
GEAR AND DRIVE SHAFT
3. Measure the starting torque of the front
wheel (i.e., differential gear preload) with a
torque wrench.
NOTE:
• Repeat this step several times to obtain an
average figure.
• During this test, the other front wheel will turn
in the opposite direction.
Front wheel starting torque
(differential gear preload)
New unit
Minimum
4. Out of specification → Replace the differen-
tial gear assembly.
5. Within specification → Install the new cotter
pin and wheel cap.
7 - 17
DRIV
17 ~ 25 Nm
(1.7 ~ 2.5 m · kg, 12 ~ 18 ft · lb)
10 Nm (1.0 m · kg, 7.2 ft · lb)