2005 Ski-Doo REV Series Shop Manual, Page 106Get this manual
Section 03 ENGINES Subsection 05 (TOP END)
Insert circlip in tool at an angle
A02C2KA
A32CBHA
1Circlip
CAUTION: Piston temperature must not exceed 46C (115F)NEVER USE DIRECT FLAME to heat the piston and never freeze the pinInappropriate heating procedure(s) may damage the piston377 Engine To center the piston pin with the connecting rod bearing, use centering tool (PN 529 009 100)
Square it up using finger1