2003 Ski-Doo ZX Series Factory Shop Manual, Page 207Get this manual
Section 05 TRANSMISSION Subsection 02 (DRIVE BELT)
Or use the belt tension tester (PN 414 348 200)1 2
A00C07B
Lower O-ring Upper O-ring Force (read down) Deflection (read up)
1Slide lower O-ring of deflection scale to specified measure2Slide upper O-ring to (zero) on the force scale3Apply pressure until lower O-ring is flush with edge of rule and read force on the upper scale at top edge of O-ring2