1986 Ski-Doo Factory Shop Manual, Page 235Get this manual

Section 02 ENGINE Sub-section 12 (AIR INTAKE SILENCERFUEL TANK)

13,14, O-ringretaining ring
Locate O-ring outside of carburetor cover and retaining ring insideCarburetor

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