Cub Cadet CC 4BP 32cc - Manual (Page 9)

Maintenance
6
Spark arrestor
The spark arrestor should be checked and/or cleaned
every 10 hours of use.
NOTE: The spark arrestor also serves to keep
blockages out of the exhaust system. Typical
blockages include insect nests built during the
dormant season.
To check/clean the spark arrestor:
1. Remove the engine cover as describe in the
spark plug section of this chapter.
2. Remove the two screws holding the spark arres-
tor cover in place. See Figure 2.8.
NOTE: The top screw is a muffler bolt and uses
a T-25 torx driver to remove it. The bottom screw
uses a T-20 torx driver.
3. The screen can now be inspected. If it is blocked
with carbon, it may be:
• Replaced with a new spark arrester screen.
• Cleaned by mechanical means
• Solvent cleaned
• Burned clean using a butane or propane torch.
NOTE: This is an air cooled engine. In order to
work properly there must be good air flow over
the fins of the engine. It is recommend to clean
the cylinder fins of any debris while the engine
cover is removed.
4. Reassemble the blower following the steps just
described in reverse order.
Fuel filter
A dirty fuel filter can result in a lean run condition. The
fuel filter should be replaced every 10 hours of use.
NOTE: The weighted fuel filter (clunk) keeps the
filter submerged in the fuel at any angle of oper-
ation. Running the blower without the filter may
allow air to be entrapped in the fuel line creating
a lean run condition at higher RPMs. This will
cause a catastrophic failure of the engine.
To clean/replace the fuel filter:
1. To service the fuel filter take a piece of wire and
bend a hook on one end of it. See Figure 2.9.
2. Remove the gas cap.
3. Stick the hook end of the wire into the fuel tank
and fish out the fuel filter. See Figure 2.10.
Figure 2.8
Muffler bolt
Spark arrester
Figure 2.9
Figure 2.10
Fuel filter