1989 Ski-Doo Repair Manual, Page 417Get this manual
Section 05 SUSPENSION Sub-section 02 (SLIDE SUSPENSION)
25, Adjustment cam
Position the adjustment cams (front and rear) at the lowest position
19, Rear spring
Unhook rear springs
13,16, Upper idler wheelscrew
Remove both screws then upper idler wheel $e1(s)
Right hand side
21,30, Rear armscrew
Lowest positior
Remove both screws securing rear arm to framePlug vent holes in chaincase filler cap and oil injection reservoir cap to prevent leaksUsing appropriate equipmentlift rear of vehicle
49, Front spring