Final Drive/Ring Gear Positioning - Yamaha XVS650 Service Manual

EB707034
FINAL DRIVE/RING GEAR POSITIONING
NOTE: _
Ring gear positioning is necessary when
any of the following parts are replaced:
• Final gear case
• Ring gear bearing housing
• 8earing(s)
1.Select:
• Final drive gear shim
CD
• Ring gear shim
®
**********************************
Selection steps:
• Position the final drive gear and the ring
gear by using shims
CD
and
®
with their
respective thicknesses calculated from
information marked on the final gear case
and the drive gear end.
CD
Final drive gear shim thickness
II
A"
®
Ring gear shim thickness
"8"
®
Thrust washer
"c"
• To find the final drive gear shim thickness
"A", use the following formula
Final drive geaf"shim thickness:
A=®-<£)
Where:
®
=::
a numeral (usually a decimal number)
on the final drive pinion gear is either
added to or subtracted from "80".
<£)
=
a numeral on the final drive gear case
O.e.79.50)
Example:
®
is
80.01
If the final gear case is marked "50" .......<£)
is 79.50.
"A"
=
80.01 - 79.50
=
0.51
Therefore, final drive gear shim thickness
is 0.51 mm (0.02 in). Shim sizes are sup-
plied in the following thickness.
Final drive gear shim
6 - 63
Thickness (mm)
(in)
0.40,0.50
(0.016,0.02)