Ski-Doo 2005 MACH Z, Shop Manual, Page: 96 / 343

Section 02 ENGINE
Subsection 09 (ENGINE MEASUREMENT)
A35C2YA
1
1. Top of spark plug hole
NOTE: The liquid level in cylinder must not drop
for a few seconds after filling. If so, there is a
leak between piston and cylinder. The recorded
volume would be false.
– Let burette stand upward for about 10 minutes,
until liquid level is stabilized.
– Read the burette scale to obtain the quantity of
liquid injected in the combustion chamber.
NOTE: When the combustion chamber is filled to
top of spark plug hole, it includes an amount of
2.25 cc corresponding to the spark plug well.
– Repeat the procedure for the other cylinder.
– Install a thicker or thinner cylinder/crankcase
gasket (refer to Parts Catalogs ) in order to ob-
tain the specified combustion chamber volume
or the nearest.
USED PISTON MEASUREMENT
Note the measurement on the piston dome.
F00D0EA
2 1
1. Piston dome
2. Piston measurement
Using a micrometer, measure piston skirt at
29 mm (1.142 in) perpendicularly (90°) to piston
pin.
A35C2ZA
1
A
1. Measuring perpendicularly (90°) to piston pin axis
A. 29 mm (1.142 in)
The measured dimension must not be less than
0.15 mm (.006 in) of the one scribed on piston
dome. Otherwise, replace piston.
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