2005 Ski-Doo REV Series Shop Manual, Page 67Get this manual
Section 02 TROUBLESHOOTING Subsection 05 (STEERING AND SUSPENSION)
SYMPTOM CONDITION TESTINSPECTION
REAR SUSPENSION IS TOO STIFFNORMAL USE 1Check rear spring preloadaToo much preloadAdjust to softer position2Check springsaSprings installed are too stiffInstall optional softer springs, refer to service bulletin SPRING REFERENCE ACCORDING TO LOAD3Check the rear shock motion ratio positionaIt is adjusted in firm positionAdjust rear shock motion ratio to soft position4Check track tensionaTrack is too tightAdjust5Check if axles are properly lubricatedaImproper lubrication andor contaminated grease (sticky oil sludge)Clean andor lubricate6Check condition of the rear shock absorberaDamaged rear shock absorberReplace rear shock absorber