Yamaha XVS650 Service Manual page 187

MIDDLE GEAR
ENG
3.Position:
• Dial gauge
(onto the outside edge of the universal
joint)
NOTE: _
Be sure that the gauge is positioned over
the centerline of the yoke bearing hole.
4.Rotate:
• Universal joint G)
NOTE: _
Move the universal joint gently back and
forth.
5.Measure:
• Gear backlash
Over specification
~
Follow the next
steps
Under or same specification
~
Incorrect
Check for faulty parts and/or reassemble
the bearing housing.
Backlash (gear):
0.05 ... 0.10 mm (0.002 .., 0.004 in)
Do not hammer the universal joint or the
collapsible collar of the driven pinion gear
may be distorted. This will result in a
change in the standard spinning torque,
requiring replacement of the collapsible
collar and reassembly of the driven gear
assembly.
NOTE: _
Check the gear backlash at four positions.
Rotate the universal joint 90° each time and
repeat the gear backlash check.