1999 Ski-Doo Factory Shop Manual Volume Three, Page 243Get this manual
Section 07 REAR SUSPENSION Subsection 02 (SC-10 SUSPENSION)
At reassembly, wheel circlip must face outward
Unscrew rear arm top axle from chassisNOTE: To prevent axle from turning when unscrewing screws assembled with threadlocker, proceed as follows: Knock on screw head andor heat to break threadlocker bond Loosen one screw then retighten Remove the opposite screw Remove the first oneUnscrew center idler wheel axle from tunnel then removeLift rear of vehicle at least (3 ft)
REMOVAL
Decrease spring preload by turning LH cam clockwise and RH cam counterclockwise