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Briggs & Stratton Power Products Backup Power System
Owner’s Manual
19
4. Coat the o-ring of a new filter with fresh, clean engine
oil.Turn the new filter by hand clockwise until the
gasket contacts the filter adapter, then tighten 1/2 to
3/4 turn more.
5. Fill engine with oil as described above.
6. Install and tighten the oil fill cap.
7. Run the engine for a minute; stop the engine and check
for oil leakage around the oil filter. Recheck oil level.
Replace the Spark Plugs
Replace the plugs every year. Use the recommended
spark plugs gapped for 0.030 in. (0.76 mm).
1. Stop the engine and pull the spark plug wires off of the
spark plugs.
2. Clean around the spark plugs and remove them from
the cylinder head.
3. Clean off carbon deposits on the spark plug electrode
using a wire brush or commercial solvent. Do Not
blast clean.
4. Set the spark plugs’ gap as recommended (Figure 8).
Install the correctly gapped spark plugs into the
cylinder heads.
Service Air Cleaner
The engine’s air cleaner is one of the most important areas
to maintain.The engine will not run properly and will be
damaged if it is run with a dirty air cleaner system.
Use only genuine Briggs & Stratton parts or their
equivalent.The use of replacement parts which are not of
equivalent quality may damage the engine.
Clean the foam precleaner every 25 hours and the
cartridge every 100 hours of operation. Clean or
replace more often in dusty or dirty conditions.
CAUTION! Never run this equipment without the
complete air cleaner system installed on the engine. Failure
to do so will result in premature engine wear and
significantly reduced engine life.
To service the air cleaner components:
1. Unhook clips on both sides of cover and remove cover
(Figure 9).
2. Carefully slide foam precleaner off cartridge.
3. To service precleaner, wash in liquid detergent and
water. Squeeze dry in a clean cloth. Never twist!
Saturate in clean, fresh engine oil. Squeeze in clean,
absorbent cloth to remove all EXCESS oil. Replace if
very dirty or damaged.
4. Remove knob and plate. Carefully remove cartridge to
prevent debris from entering carburetor.
5. To service cartridge, clean by tapping gently on a flat
surface. Do Not oil cartridge. Replace if very dirty or
damaged.
NOTE: Do Not use petroleum solvents, e.g. kerosene,
which will cause the cartridge to deteriorate. Do Not use
pressurized air to clean cartridge. Pressurized air can
damage the cartridge.
Figure 9 — Engine Air Cleaner Components
Cartridge
Precleaner
Plate
Body
Knob
Clips
Figure 8 — Gapping A Spark Plug