Arctic Cat Altera 300 Service Manual page 66

6. Secure the needle jet holder with a wrench; then
remove the main jet.
KC0030A
7. Remove the needle jet holder; then remove the nee-
dle jet, slow jet, and the starter jet.
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.
7. Inspect float for damage.
8. Inspect gasket and O-rings for distortion, tears, or
noticeable damage.
9. Inspect tips of the jet needle 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
NOTE: Note the locations of the jets and holder

during assembling procedures.
CC761B
1. Install the slow jet. Tighten securely.
2. Install the main jet into the needle jet holder and
tighten securely; then install the needle jet, starter jet,
and needle jet holder assembly into the carburetor
and tighten securely.
3. Place the float assembly (with float valve) into posi-
tion and secure to the carburetor with the float pin.
CC753
 NOTE: Check float arm height by placing the car-
buretor on its side w/float contacting the needle; then
measure with a caliper the height when the float arm
is in contact with the needle valve. Float arm height
should be 17 mm.
4. Place the float chamber into position making sure the
O-ring is properly positioned; then secure with the
Phillips-head screws.
KC0063A
65