Snow Hawk 600HO, Set-Up, Service And Shop Manual, Page: 93 / 207

ENGINE (CYLINDERS / HEAD / BASE) 7 - 30
11. Install a thicker or thinner cylinder/crankcase gasket (refer to
Parts Catalogs ) in order to obtain the specified combustion
chamber volume or the nearest.
USED PISTON MEASUREMENT
Note the measurement on the piston dome.
1. Piston dome
2. Piston measurement
Using a micrometer, measure piston skirt at 15 mm (.590 in)
perpendicularly (90°) to piston pin.
1. Measuring perpendicularly (90°) to piston pin axis
A. 15 mm (.590 in)
The measured dimension must not be less than 0.15 mm (.006
in) of the one scribed on piston dome. Otherwise, install a new
piston.