Cleaning And Inspecting Carburetor - Arctic Cat 650 Twin2004 Service Manual

2. Remove the four screws (A) securing the float
chamber (B); then remove the float chamber.
Account for the O-ring seal.

NOTE: Do not remove the pilot screws unless
idle problems have been encountered. If pilot
screws are removed, the carburetors will have to
be synchronized after installation.
3. Remove set screw (A); then remove the float pivot
pin (B), float (C), needle valve, slow jet (D), and
main jet (E).
4. Remove the screws (A) and pump cover (B) from
the carburetor body; then remove the diaphragm
(C) and O-ring (D).
4-6
KX370
Cleaning and Inspecting
Carburetor

NOTE: Whenever a part is worn excessively,
cracked, or damaged in any way, replacement is
necessary.
When drying components with compressed air,
always wear safety glasses.
This carburetor body has plastic parts that
cannot be removed. Use only a mild, high
flash-point carburetor cleaning solvent safe for
plastic.
1. Place all plastic components in a wire basket and
submerge in carburetor cleaner.
KX371
2. Soak for 30 minutes; then rinse with fresh
parts-cleaning solvent.
3. Wash all non-metallic components with soap and
water. Rinse thoroughly.
4. Dry all components with compressed air only
making sure all holes, orifices, and channels are
unobstructed.
5. Inspect the carburetor body for cracks, nicks,
stripped threads, and any other imperfections in
the casting.
6. Inspect the vacuum piston/diaphragm for cracks,
imperfections in the casting, or cracks and tears in
the rubber.
KX372
7. Inspect float for damage.
8. Inspect gasket and O-rings for distortion, tears, or
noticeable damage.
! WARNING
! CAUTION
KX373A