Checking The Differential Operation - Yamaha YFM45FXV Supplementary Service Manual

FRONT CONSTANT VELOCITY JOINTS AND
DIFFERENTIAL GEAR
c. If it is necessary to reduce by more than
0.1 mm (0.004 in):
Increase right shim thickness by 0.1 mm
(0.004 in) for every 0.1 mm of left shim
decrease.
Ring gear shim (left and right)
Thickness (mm)
L LLL L LLL L L LLL
CHECKING THE DIFFERENTIAL
OPERATION
1. Block the rear wheels, and elevate the front
wheels by placing a suitable stand under
the frame.
2. Remove the wheel cap and cotter pin from
the axle nut (right or left).
3. Measure the starting torque of the front
wheel (i.e., differential gear preload) with
the 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:
17 ~ 25 Nm
(1.7 ~ 2.5 m · kg, 12 ~ 18 ft · lb)
Minimum:
10 Nm (1.0 m · kg, 7.2 ft · lb)
4. Out of specification → Replace the differen-
tial gear assembly.
5. Within specification → Install the new cotter
pin and wheel cap.
– 72 –
DRIV
0.1 0.2
0.4 0.5
L L LLL L L LLL L
0.3
1.0
L LLL L LLL