1982 Ski-Doo Shop Manual, Page 192Get this manual

SECTION 03 TRANSMISSION SUB-SECTION 02 (DRIVE BELT)
10Belt "Flip-Overat high speedCAUSE REMEDY

a) Pulley misalignmentb) Using unspecified type of belt

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives