1983 Ski-Doo Shop Manual, Page 120Get this manual
SECTION 02 ENGINE
SUB-SECTION 07 (ENGINE TOLERANCES MEASUREMENT)
Using feeler gauge, check ring end gapIf gap exceeds specified tolerance the ring should be replaced
The difference between these two measurements should be within specified tolerance
RING PISTON GROOVE CLEARANCE
MINIMUM 0.04 mm LOO2") MAXIMUM (wear limit)0.20 mmL008")
CRANKSHAFT DEFLEXION