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Not for
Reproduction
15
Maintenance
Service Air Cleaner
WARNING! Fuel and its vapors are extremely
flammable which could cause burns or fire
resulting in death or serious injury.
• Do not start and run engine with air filter removed.
Your engine will not run properly and may be damaged
if you run it with a dirty air filter. Clean or replace more
often if operating under dusty or dirty conditions.
1. Loosen screws and remove air cleaner cover.
2. Carefully remove cartridge from base.
3. Install clean (or new) air cleaner assembly inside
cover. Dispose of old filter properly.
NOTICE If the filter is excessively dirty, replace with a new
filter. See Common Service Parts.
4. Assemble air cleaner cover onto base and tighten
screws.
Service Spark Plug
Changing the spark plug will help your engine to start
easier and run better.
1. Clean area around spark plug.
2. Remove and inspect spark plug.
3. Replace spark plug if electrodes are pitted, burned
or porcelain is cracked. Use the recommended
replacement spark plug. See Common Service Parts.
4. Check electrode gap with wire feeler gauge and reset
spark plug gap to recommended gap if necessary (see
Specifications).
5. Install spark plug and tighten firmly.
Inspect Muffler and Spark Arrester
The engine exhaust muffler has a spark arrester screen.
Inspect the muffler for cracks, corrosion, or other damage.
Inspect spark arrester screen for damage or carbon
blockage. Clean if carbon blockage is found using brush
and commercial solvent or replace if damaged.
WARNING!
Contact with muffler area could
cause burns resulting in serious injury.
• Allow equipment to cool before servicing.
• It is a violation of California Public Resource Code,
Section 4442, to use or operate the engine on any forest-
covered, brush-covered, or grass-covered land unless
the exhaust system is equipped with a spark arrester, as
defined in Section 4442, maintained in effective working
order. Other states or federal jurisdictions may have
similar laws, reference Federal Regulation 36 CFR Part
261.52.
Replace spark arrester as follows:
1. Remove four screws that connect heat shield to
muffler.
2. Remove four screws that attach spark arrester screen.
3. Obtain a replacement screen.
4. Reattach screen and muffler guard.
Common Service Parts
Air Cleaner .................. 491588 or 5043
Spark Plug .........................795615
Engine Oil Bottle ....................100028
Synthetic Oil Bottle ..................100074
Fuel Stabilizer ............. 100120 or 100117
Contact an authorized service dealer or
BRIGGSandSTRATTON.COM for a full list of parts and
diagrams.
Muffler
Heatshield
Spark Arrester Screen
Screws
Screws
Screws
Cover
Filter
Base
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