2001 Ski-Doo Factory Shop Manual Volume One, Page 136Get this manual
Section 04 ENGINE Subsection 04 (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
RINGPISTON GROOVE CLEARANCE
Using feeler gauge check clearance between rectangular ring and grooveReplace piston if clearance exceeds specified toleranceRefer to TECHNICAL DATAF00B0AA
1Indicator set to (zero)
Position the dial bore gauge at 16 mm (58 in) below cylinder top edgeA01C0PA
RING END GAP
Position ring half-way between transfer ports and intake portOn rotary valve engines, position ring just below transfer portsNOTE: In order to correctly position the ring in the cylinder, use piston as pusherUsing feeler gauge, check ring end gapReplace ring if gap exceeds specified toleranceRefer to TECHNICAL DATA1