Cub Cadet CC 4BP 32cc - Manual (Page 25)

FUEL SYSTEM AND CARBURETOR
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5. Inspect and clean the vent under the primer
body for debris. See Figure 5.8.
6. If the carburetor is running lean:
• Inspect the carburetor spacer for cracks.
• Inspect the spacer gasket.
NOTE: A cracked spacer or a leaking gasket
between the spacer and the cylinder could result
in a lean run or prevent the impulses from the
engine from driving the fuel pump. To remove
the spacer, remove the three screws with a T-25
torx driver and swing the spacer with the heat
shied away. See Figure 5.9.
7. Inspect the throttle valve assemble for debris
and freedom of movement. See Figure 5.10.
8. If there is a problem with the throttle valve
assembly, check on availability and price of parts
to determine if the carburetor should be repaired
or replaced.
Disassembly of the carburetor
1. Remove the for screws in the carburetor.
2. Inspect the diaphragms. If torn, damaged or brit-
tle install a diaphragm kit.
3. Inspect for dirt or varnish build up inside the car-
buretor. If there is a lot of dirt/varnish in the car-
buretor, replace it.
4. Check that the needle valve is set to the right
height. See the carburetor manufacturer for the
proper procedure.
5. Inspect the needle valve and seat.
6. If the seat is damaged, replace the carburetor.
NOTE: If there is a minor amount of dirt/varnish
in the carburetor or debris and/or damage to the
needle valve, install a rebuild kit.
7. To rebuild/repair a carburetor:
7a. Place the carburetor in a clean area on the
work bench.
Figure 5.8
Vent
Figure 5.9
Spacer
Figure 5.10
Throttle valve assembly