2005 Ski-Doo RT Series Shop Manual, Page 223Get this manual
Section 06 DRIVE SYSTEM Subsection 03 (DRIVEN PULLEY)
Take first measurement when sliding half begins to turnRotate sliding half to 10 mm (38 in) of rotationHold spring scale at this positionSlowly release tension from spring scale and take second measurement when sliding half begins to returnSpring preload is the average measurement between these 2First measurement (when opening)Second measurement (when closing)Spring preload
EXAMPLE:
3.8 kg (8.4 lb) (when opening)3.4 kg (7.5 lb) (when closing) 3.6 kg (8 lb) actualspring preload
A30D0XA
529 006 500
NOTE: For high altitude regions, service bulletin will give information about calibration according to altitude