1980 Ski-Doo Shop Manual, Page 163Get this manual

SECTION 03 SUB-SECTION 04, (CARBURETOR)
Idle Speed Adjustment
Turn idle speed screw clockwise until it contacts the

throttle slide then continue turning two (2) additional

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