Briggs & Stratton BP33-W, Operator'S Manual

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20
WARNING Gasoline and its vapors are
extremely flammable and explosive.
Fire or explosion can cause severe burns or
death.
• Never start or run the engine with the air
cleaner assembly or the air filter removed.
Figure 25
Figure 24
B
0.7 mm
MAINTENANCE
Spark Plug Maintenance
Changing the spark plug will help the engine to start
easier and run better.
1. Clean area around spark plug.
2. Remove and inspect spark plug (A, Figure 24).
3. Check the gap with wire feeler gauge (B) and reset
to recommended gap if necessary (see Specifica-
tions).
4. Replace spark plug if electrodes are pitted or burned,
or the porcelain is cracked.
5. Install spark plug and tighten to 180 lb. in. (20 Nm).
Air Filter Maintenance
NOTICE: Do not use pressurized air or solvents to clean
the filter. Pressurized air can damage the filter and
solvents will dissolve the filter.
1. Remove air cleaner cover (A, Figure 25) and the filter
element (B).
2. Wash foam element in liquid detergent and water to
remove dirt.
3. Wrap foam element in a clean cloth and squeeze dry.
4. Saturate foam element with clean engine oil. Squeeze
to remove excess oil.
5. Reassemble air cleaner.
NOTICE: Make sure the air filter element and cover are
fitted correctly. Warranty coverage will be void if engine
is damaged due to incorrect installation of filter.
A
A
B