1999 Ski-Doo Factory Shop Manual Volume Three, Page 184Get this manual
Section 05 TRANSMISSION Subsection 04 (DRIVEN PULLEY)
13, Pulley Retaining Screw
Torque to 22 Nm (16 lbfft)
1 529 006 500
ADJUSTMENT
Refer to PULLEY DISTANCE AND ALIGNMENT 05-05 to adjust pulley distanceAdjust drive belt height in driven pulley to obtain specified belt deflectionTurn Allen screws no10 equally accordingly
7, Spring
General It is usual to experience spring setting during breaking period of new springThe factory spring preload is slightly higher (about kg (2 lb)) to compensate for spring settingSpecifications in TECHNICAL DATA 10 are applicable after breakin period (about 10 hours of use)Spring Torsional Pre-Load To check spring pre-load adjustment, use spring scale hook (PN 529 006 500) and spring scaleRemove drive beltInstall the hook on the sliding halfPreventing fixed half from turning, pull sliding half with the spring scale perpendicularly with pulley axleTake 1st measurement when sliding half begins to turnRotate sliding half to 10 mm (38 in) of rotationHold fish scale at this positionSlowly release tension from fish scale and take 2nd measurement when sliding half begins to returnSpring pre-load is the average measurement between these 21st measurement 2nd measurementSpring (when opening) (when closing)pre-load Example: 3.8 kg (8.4 lb) 3.4 kg (7.5 lb)(when opening) (when closing) 3.6 kg (8 lb) Actualspring pre-load