1999 Ski-Doo Factory Shop Manual Volume One, Page 125Get this manual
Subsection 04
Section 04 ENGINE (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
CYLINDERPISTON CLEARANCE
Used and New Pistons NOTE: Make sure used piston is not wornSee USED PISTON MEASUREMENT aboveTake the measurement on the piston dome
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1Use the micrometer to set the cylinder bore gauge 2Dial bore gauge
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1Piston dome 2Piston measurement