Yamaha Rhino 450 YXR45FAV Service Manual page 214

MIDDLE GEAR
c. To find shim thickness "B" use the following
formula:
Middle driven pinion gear shim thick-
ness:
"B" = d – e + f – g – 0.05
Where:
d = a numeral (usually a decimal number)
on the bearing housing is either added
to or subtracted from "76".
e = a numeral (usually a decimal number)
on the middle driven pinion gear is
either added to or subtracted from "59".
f = a numeral (usually a decimal number)
on the middle driven pinion gear is
either added to or subtracted from
"79.5".
g = a numeral (usually a decimal number)
on the left crankcase specifies a thick-
ness of "95.8".
Example:
1) If the bearing housing is marked "+03",
.....d is 76.03.
2) If the driven pinion gear is marked "+02",
.....e is 59.02.
3) If the driven pinion gear is marked "–10",
.....f is 79.40.
4) If the crankcase (left) is marked "95.79",
.....g is 95.79.
5) Therefore, the shim thickness is 0.57 mm.
B = 76.03 – 59.02 + 79.40 – 95.79 – 0.05
= 0.57
6) Round off hundredths digit and select
appropriate shim(s).
In the example above, the calculated
shim thickness is 0.57 mm. The chart
instructs you, however, to round off 7 to
5.
Hundredths
0, 1, 2
3, 4, 5, 6, 7
8, 9
4 - 83
ENG
Round value
0
5
10