1989 Ski-Doo Repair Manual, Page 293Get this manual
Section 03 TRANSMISSION Sub-section 04 (DR.VEN PULLEY)
Shim(s) #17 and #18 provide bet1 height adjustment between pulley hallJeSAdding shim lower the belt in driven while removing shim raise the beltAdjust properly
9, Spring
Spring tor8ional pre-I oedTo check spring pre-load adjustment, use spring scale hook (P 529 0065 00) and spring scaleoat 01)1 eM3
: Always recheck torsional preroad after adIUStlng
Pulley alignmentdrive belt deflection