2004 Ski-Doo REV Series Factory Service Manual, Page 123Get this manual
Section 04 ENGINE Subsection 01 (593, 593 HO, 593 HO SDI AND 793 HO ENGINE TYPES)
A32CBHA
A02C2IA
CAUTION: Piston temperature must not exceed 46C (115F)Never use direct flame to heat the piston and never freeze the pinAt assembly, place the pistons over the connecting rods with the letters AUS (over an arrow on the piston dome) facing towards the exhaust port
TYPICAL SHOULDERED SLEEVE INSTALLATION
Install piston pin puller and turn handle until piston pin is correctly positioned in piston