2002 Ski-Doo Shop Manual Volume Three, Page 130Get this manual
Section 04 ENGINE Subsection 03 (493, 593, 693 AND 793 ENGINE TYPES)
Square it up using fingerUsing square end of tool, push circlip in until it rests in groove
A02C2NA
A02C2LA
TYPICAL 1Circlip
TYPICAL 1Circlip in groove