2005 Ski-Doo Racing Handbook, Page 166Get this manual
SECTION 05ENGINE PREPARATION
oil pump and carburetor synchronization final idle speed adjustment (engine running)
A32C72A
A32C71A
1Adjust PTO carburetor first 2Drill bit used as gauge to measure throttle height 3Idle speed screw
1Idle speed screw 2Pilot screw (one on each carburetor)
Pilot Screw Adjustment
Completely close the pilot screw (until slight seating resistance is felt) then back off as specifiedTurning screw in clockwise leans mixture and conversely, turning it out counterclockwise enriches mixtureRefer to TECHNICAL DATA for the specifications