Yamaha YFM400FWA 2000 5GH3-AE1, Service Manual

Page: 263 / 381

7 - 20
DRIV
REAR AXLE/FINAL DRIVE GEAR AND DRIVE SHAFT
Shims are supplied in the following thick-
nesses.
*********************************
Final drive pinion gear shim
Thickness (mm)
0.15 0.30 0.40
0.45 0.50 0.60
Ring gear shim selection
1.Select:
●
Ring gear shim(s) 1
*********************************
Shim selection steps:
●
To find the ring gear shim thickness “B”,
use the following formula.
c
= a numeral (usually a decimal number)
on the final gear case either added to
or subtracted from 45
d
= a numeral (usually a decimal number)
on the outside of the ring gear bear-
ing housing and added to 1
e
= a numeral (usually a decimal number)
on the inside of the ring gear either
added to or subtracted from 35.00
f
= bearing thickness (considered con-
stant)
Example:
1) If “53” is stamped on the final gear
case,
c
= 45 + 0.53 = 45.53
2) If “05” is stamped on the ring gear
bearing housing,
d
= 1 + 0.05
= 1.05
3) If “–05” is stamped on the ring gear,
e
= 35 – 0.05
= 34.95
4)
f
= 11.00.
Ring gear shim thickness:
“B” =
c
+
d
– (
e
+
f
)
- -
Bearing thickness
f
:
11.00 mm