1999 Ski-Doo Factory Shop Manual Volume Three, Page 104Get this manual
Section 04 ENGINE Subsection 02 (599, 699 AND 809 ENGINE TYPES)
ASSEMBLY
RAVE System
Install rave valve with its mention top as illustrated in the removal photoTighten red cap no4 screw to bottom-
CAUTION
Always install new circlipsTo minimize the effect of acceleration forces on circlip, install each circlip so the circlip break is at o'clock as illustratedUse piston circlip installer (PN 529 035 561)Insert circlip in tool at an angle
17,18, Cylinder and Piston
NOTE: Be sure to restore the chamfer around all cylinder sleeve port openingsBefore inserting piston in cylinder, lubricate the cylinder with new injection oil or equivalent