2010 Arctic Cat DVX 300 / 300 Utility ATV Service Manual, Page 72Get this manual
12Inspect the carburetor mounting flange for damage and tightnessASSEMBLING 1Install the pilot screw, spring, washer, and O-ring CC753
NOTE: Check float arm height by placing the carburetor on its side wfloat contacting the needle; then measure with caliper the height when the float arm is in contact with the needle valveFloat arm height should be 17 mm
NOTE: Turn the pilot screw clockwise until it is lightly seated; then turn it counterclockwise the recommended number of turns as an initial settingNOTE: Note the locations of the jets and holder during assembling procedures
5Place the float chamber into position making sure the O-ring is properly positioned; then secure with the Phillips-head screws