BOMBARDIER 1996 Ski-doo MX Z440 Handbook page 54

Section 03 CHASSIS PREPARATION
Dia. (mm) lickness
10 x 30 x .203
1 X 18
X
18
1 X X
1 16
X X
1 x 15 x .
The overall stiffness of the stack has been increased by adding 7-30 mm x .203 mm shims. This will
result in firmer dampening at both low and high piston speeds. Thicker shims will also result in
firmer dampening but it is better to use more thin shims than fewer thick shims. More thin shims
will provide better, smoother dampening than a few thick shims. There is an equivalency between
thick and thin shims, though. The following chart indicates how many thin shims are required to
equal the stiffness of one thick shim.
This means it will take 2.4 x .114 mm shims to have the same dampening as 1 x .152 mm shim.
Obviously you can't use a fraction of a shim so you must find the lowest common denominator.
For 2.4 it will be 5. For 2.3 it will be 10. The following chart shows the most common possibilities.
03-38
STIFFER
2 0 3 —
TOP OUT WASHER
1 .152 = 2.4X
X
1 .203 = 2.3
X
1 .254= 2.0X .152
X
10X .152 = 24X
10
SOFTER
TOP OUT WASHER
(mm)
.114
.152
X
(mm)
5 .152 = 12
X X .114
.114
.203 = 23X .152
X
1 .254= 2 .152
X
X
2 .254= 4 .152
X X
3 .254= 6 .152
X X
4 .254 =8X .152
X
5 .254= 10X .152
X
6 .254= 12X .152
X
7 .254= 14X .152
X
8 .254= 16X .152
X
9 .254= 18X .152
X
Dia. (mm) Tickness
3 x 30 x .203