2003 Ski-Doo ZX Series Factory Shop Manual, Page 190Get this manual
Subsection 10
Section 04 ENGINE (CARBURETOR AND FUEL PUMP)
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
Carburetor Synchronization and Throttle Slide Height (preliminary idle speed adjustment)
First proceed on PTO carburetorUse drill bit to measure throttle slide height (see following table) on outlet side of carburetor (engine side)Adjust by turning idle speed screw no153 1
A32C73A
1PTO carburetor adjusted first 2Drill bit used as gauge to measure throttle height 3Synchronization screw
NOTE: Make sure that throttle cable does not hold throttle slideLoosen cable adjuster accordinglyFinal idle speed adjustment (engine running at idle speed) should be within 12 turn of idle speed screw from preliminary adjustmentMODELS MX 700800, Legend 700, Grand Touring 700