2002 Ski-Doo Shop Manual Volume Three, Page 174Get this manual
Subsection 10
Section 04 ENGINE (CARBURETOR AND FUEL PUMP)
2,3, E-Clip and Needle
Remove screws from needle retaining plate to withdraw the needleThe position of the needle in the throttle slide is adjustable by means of an E-clip inserted into of grooves located on the upper part of the needlePosition (at top) is the leanest, (at bottom) the richestNOTE: The last digit of the needle identification number gives the recommended calibrated position of the E-clip from the top of the needleExample Needle identification 6DH4-3 Recommended position of the E-clip from top
9,10, Float Arm and Float Arm Pin
Correct fuel level in float chamber is vital toward maximum engine efficiencyTo check for correct float level proceed as follows: Make sure that float arm is symmetrical not distorted Remove float bowl and gasket from carburetor With carburetor chamber upside-down on level surface, measure height between bowl seat and top edge of float armKeep ruler perfectly vertical and in line with main jet hole1 Lean Rich