1989 Ski-Doo Repair Manual, Page 297Get this manual
Section 03 TRANSMISSION Sub-section 04 (536 DRIVEN PULLEY)
Restrain Allen scre.v with the wrench and tighten nut with the socket using socket handle provided in tool box
4, Spring
Spring torsional pre-loadTo check spring pre-load adjustmentuse spring scale hoole (P529 0065 00) and spring scaleInstall the hook on the sliding halfPreventing fixed half from turningpull sliding half with the spring scale perpendiculary with pulley axleTYPICAL I
: Always recheck torsional pre-load after adJusting