Arctic Cat 2014 M 2-STROKE Service Manual page 70

Measuring Critical
Components
CYLINDER TRUENESS
1. Measure each cylinder in locations from front to back
and side to side top and bottom of the cylinder for a
total of four readings.
2. The trueness (out-of-roundness) is the difference
between the highest and lowest reading. Maximum
trueness (out-of-roundness) must not exceed 0.004 in.
PISTON SKIRT/CYLINDER
CLEARANCE
1. Measure the piston skirt diameter 10 mm from the
bottom of the piston. Once the measurement is final,
lock the micrometer.
2. Position a bore gauge between the micrometer points
and move it from top to bottom and side to side to
find zero; then adjust the gauge to zero.
3. Place the bore gauge in the cylinder and measure
each cylinder in locations from front to back and side
to side top and bottom of the cylinder for a total of
four readings. The difference (clearance) must be
within 0.0031-0.0041 in.
CWI-077
PISTON PIN
1. Measure the piston pin diameter at each end and in
the center. Acceptable piston pin measurement must
be within 0.8659-0.8661 in. If any measurement var-
CWI-090
ies by more than 0.001 in., the piston pin and bearing
must be replaced as a set.
CWI-089
CWI-087
CWI-086
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