Replacing The Spark Plug - Power Fist 420cc OHV Mode D'emploi

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2. Remove the air filter from the air filter housing.
3. Clean the housing interior with warm soap and water. Allow to dry
before reassembly.
4. Inspect the air filter to see if you can clean it or if it should be discarded.
Discard if it is too dirty and replace with a new filter.
a. Clean the dirty air filter by tapping it on a hard surface to dislodge dirt
and dust. Finer particulate matter
may still remain lodged in the
filter's fibers.
b. Use clean compressed air to clean
the filter. Set the compressor to a
maximum of 30 PSI. Anything
higher can damage the filter. Hold
the air nozzle inside the filter and
direct the air stream outward to
blow the dirt and debris away from
the outer surface.
NOTICE! Do not use compressed air with chemicals to clean the air
filter. The chemicals could clog or dissolve the filter material.
c. Never attempt to brush the accumulated dust and debris from the filter.
This will only force the grime into the fibers and plug the filter.
5. Reinstall the filter into the housing and secure in place.
6. Install the air filter assembly onto the carburetor and secure with screw.

REPLACING THE SPARK PLUG

NOTICE! Using an incorrect spark plug can cause engine damage. Only replace
a spark plug with a model recommended by the manufacturer.
The spark plug must be properly gapped and free of deposits for the best
performance. Check local bylaws to see if a resistor spark plug is required to
suppress ignition signals. Replace the included spark plug with a resistor spark plug
if required.
20
420cc OHV Gas Engine with Electric Start
For technical questions call 1-800-665-8685
V 4.4
Fig. 7