2005 Ski-Doo REV Series Shop Manual, Page 159Get this manual
Section 03 ENGINES Subsection 08 (COOLING SYSTEM)
Fan Belt Deflection Adjustment
Check fan belt deflection using ruler and fish scale positioned midway between pulleys as per following photoA03C23A
1Keep shims 2Leave second half pulley in place
Install new fan belt on bottom pulley first then position onto fan shaft, as shown in the next photo1 2
A03C2BA
TYPICAL 1Measure deflection here 2Fish scale