Yamaha 2004 YXR660 Service Manual page 275

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REAR CONSTANT VELOCITY JOINTS, FINAL DRIVE
1
h
g
f
"B"
e
GEAR AND DRIVE SHAFT
Shims are supplied in the following thick-
nesses.
Final drive pinion gear shim
Thickness (mm)
L
LLL
L LLL
L
Selecting the ring gear shim
1. Select:
• ring gear shim(s) 1
M
MMM
M MMM
M
a. To find the ring gear shim thickness "B", use
the following formula.
Ring gear shim thickness
"B" = e – f – (g + h)
e = a numeral (usually a decimal number) on
the final gear case either added to or sub-
tracted from "50"
f = a numeral (usually a decimal number) on
the outside of the ring gear bearing hous-
ing and added to 1
g = a numeral (usually a decimal number) on
the inside of the ring gear either added to
or subtracted from 35.00
h = bearing thickness (considered constant)
Bearing thickness h
14.00 mm
Example:
1) If "98" is stamped on the final gear case,
e = 50 + 0.98
= 50.98
2) If "55" is stamped on the ring gear bearing
housing,
f = 1 + 0.55
= 1.55
3) If "–05" is stamped on the ring gear,
g = 35 – 0.05
= 34.95
4) h = 14.00
5) Therefore, shim thickness "B" is 0.48.
"B" = 50.98 – 1.55 – (34.95 + 14.00)
= 49.43 – 48.95
= 0.48
7 - 28
DRIV
0.25
0.30
0.40
0.45
L LLL
L
L LLL
L
L LLL
L
L LLL
L
M MMM
M
M MMM
M
M MMM
M
M MMM
M
0.35
0.50
LLL
MMM

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