1989 Ski-Doo Repair Manual, Page 283Get this manual
Section 03 TRANSMISSION Sub-section 04 (DRIVEN PULLEY)
1, Cotter pin
lock assembly in position with a
nevv coner pin
To correct spring pre-load, relocate spring end in sliding pulley half, moving it clockwise to decrease the pre-load or counterclockwise to increase it
5, Drive chain
Check chain tension
ADJUSTMENT
9, Release spring
Spring torsional pre-load
In order to measure driven pulley spring torsional preload, pulley halves must be separatedTo do this, insert length of mm !l:8 in) diarod between the halvesCheck tension using fish scale pOsitioned 90 with pullev axle