Yamaha XVZ13TF 1999 Service Manual page 256

MIDDLE GEAR
Example
Shim thickness =
Distance "A" – Distance "B"
A = 43 + a
B = 42 + b
a. If the middle drive gear is stamped "06" ( a
positive number (+ 06) is implied since only
the negative (–) designations are stamped
alongside the numbers), then:
"A" = 43 + 0.06
= 43.06
NOTE:
All stamped numbers are in hundredths of a
millimeter.
b. If the left crankcase is stamped "45", then:
"B" = 42 + 0.45
= 42.45
Therefore:
T = A – B
= 43.06 – 42.45
= 0.61 mm
c. Then calculated shim thickness is 0.61 mm.
Shims can only be selected in 0.05 mm incre-
ments, therefore round off to the hundredths
digit of the calculated thickness and select
the appropriate shim(-s) with the following
chart.
Hundredths digit
0, 1, 2
3, 4, 5, 6
7, 8, 9
d. Using the above example, the calculated
shim thickness of 0.61 mm is rounded off to
0.60 mm. Therefore, you may choose either
four 0.15 mm shims, two 0.30 mm shims or
one 0.30 mm and two 0.15 mm shims as se-
lected from the shim thickness chart below.
Shim sizes are supplied in the following
thicknesses:
Middle drive pinion shim
Thickness (mm)
4-112
ENG
Rounded value
0
5
10
0.15 0.30 0.50