Arctic Cat 300 Utility Service Manual page 78

6. Secure the needle jet holder with a wrench; then
remove the main jet.
7. Remove the needle jet holder; then remove the nee-
dle jet, slow jet, and the starter jet.
8. Remove the pilot screw. Account for a spring,
washer, and an O-ring.
CLEANING AND INSPECTING
! WARNING
When drying components with compressed air, always
wear safety glasses.
CAUTION
DO NOT place any non-metallic components in parts-
cleaning solvent because damage or deterioration will
result.
1. Place all metallic components in a wire basket and
submerge in carburetor cleaner.
2. Soak for 30 minutes; then rinse with clean, hot water.
3. Wash all non-metallic components with soap and
water. Rinse thoroughly.
4. Dry all components with compressed air only mak-
ing sure all holes, orifices, and channels are unob-
structed.
5. Inspect the carburetor body for cracks, nicks,
stripped threads, and any imperfections in the cast-
ing.
6. Inspect the vacuum piston for cracks, imperfections
in the casting, or cracks and tears in the rubber.
CC761A
7. Inspect float for damage.
8. Inspect gasket and O-rings for distortion, tears, or
noticeable damage.
9. Inspect tips of the jet needle, pilot screw, and the
needle jet for wear, damage, or distortion.
10. Inspect the slow jet and main jet for obstructions or
damage.

NOTE: If the slow jet is obstructed, the mixture will
be extremely lean at idle and part-throttle operation.
11. Inspect the float valve for wear or damage.
12. Inspect the carburetor mounting flange for damage
and tightness.
ASSEMBLING
KC0030A
1. Install the pilot screw, spring, washer, and O-ring.

NOTE: Turn the pilot screw clockwise until it is
lightly seated; then turn it counterclockwise the rec-
ommended number of turns as an initial setting.
CC758

NOTE: Note the locations of the jets and holder dur-
ing assembling procedures.
CC758
75