1989 Ski-Doo Repair Manual, Page 247Get this manual
Section 03 TRANSM ISS ION Sub-section 02 (DR IVE BELT)
ROTATION DIRECTION
The maximum drive belt life span is obtained when the drive belt is installed as shown This will ensure that correct direction of rotation is respectedCORRECT
REMOVALINSTALLATION
CAUTION: Do not force or use tools to pry the belt into place, this could cut or break the cords in the belt+
WARNING: Do not operate engine without drive belt or guard installedSerious bodily injury could occurTilt cab and remove pulley or belt guard