Yamaha XVS6501997 - Final Drive;Ring Gear Positioning

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SHAFT DRIVE
CHAS
NOTE:
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a b
Final drive gear shim
Thickness (mm) 0.40, 0.50
EB707034
FINAL DRIVE/RING GEAR POSITIONING
Ring gear positioning is necessary when any of
the following parts are replaced:
D Final gear case
D Ring gear bearing housing
D Bearing(s)
1. Select:
S Final drive gear shim
1
S Ring gear shim
2
Selection steps:
D Position the final drive gear and the ring gear
by using shims
1
and
2
with their respec-
tive thicknesses calculated from information
marked on the final gear case and the drive
gear end.
1
Final drive gear shim thickness “A”
2
Ring gear shim thickness “B”
3
Thrust washer “C”
D To find the final drive gear shim thickness “A”,
use the following formula
Final drive gear shim thickness:
A = –
Where:
a
= a numeral (usually a decimal number) on
the final drive pinion gear is either added to or
subtracted from “80”.
b
= a numeral on the final drive gear case
(i.e.79.50)
Example:
a
is 80.01
If the final gear case is marked “50”
b
. . .
is 79.50.
“A” = 80.01 – 79.50
= 0.51
Therefore, final drive gear shim thickness is
0.51 mm. Shim sizes are supplied in the fol-
lowing thickness.