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FUEL SYSTEM
WARNING
Replacement parts for fuel system (tank, hoses, valves, etc.)
must be the same quality as original parts, otherwise fire can
occur.
Replacing Fuel Filter
• Remove the engine cover. Replace fuel filter. Check filter for
water or debris. If found, clean fuel system. Reinstall the
engine cover.
SPARK PLUG
Fig. 9
WARNING
DO NOT check for spark with spark plug removed. Use only
Briggs & Stratton Spark Tester Ë, to check for spark.
• The electrodes on the spark plug must be clean and sharp to
produce the powerful spark required for ignition. If the spark
plug is worn or dirty the engine will be hard to start.
• Ensure spark plug gap
Ì is 0.51 mm or 0.020 in.
VALVE CLEARANCE
Under certain running conditions, engines may require period-
ic valve clearance adjustment. Consult the repair manual, Part
No. 275110, or see your Authorized Briggs & Stratton Service
Dealer for adjustment procedure.
CLEANING DEBRIS
Fig. 10
Engine and parts should be kept clean to maintain freedom of
movement, and to reduce the risk of overheating from
accumulated debris.
To assure smooth operation, keep governor linkage, springs
and controls
Í free of debris.
Note: On string trimmer applications, clean accumu-
lated debris at each refueling, sooner if needed
Accumulation of debris around muffler
Î could cause a fire.
Inspect and clean before every use.
If muffler is equipped with spark arrester screen
Ï, remove
spark arrester screen for cleaning and inspection. Replace if
damaged.
Periodically remove grass and chaff build-up from engine.
Clean finger guard
Ð.
CAUTION:
DO NOT use water to clean engine parts. Water could
contaminate fuel system. Use a brush or dry cloth.
STORAGE
Engines stored over 30 days need special attention.
To prevent gum from forming in fuel system or on essential
carburetor parts:
a) if fuel tank contains oxygenated or reformulated gasoline
(gasoline blended with an alcohol or an ether), run engine until
it stops from lack of fuel, or b) if fuel tank contains gasoline,
either run engine until it stops from lack of fuel, or add a
gasoline stabilizer to the gas in the tank.
Note: If stabilizer is used, run the engine for several
minutes to circulate the additive through the carburetor.
Then engine and fuel can be stored.
1. Change oil.
2. Remove spark plug and pour about 15 ml (1/2
oz.) of engine oil into cylinder. Replace spark plug
and crank slowly to distribute oil.
3. Clean engine of debris.
4. Store in a clean and dry area.
We recommend use of Briggs & Stratton Fuel Stabilizer
available from an Authorized Briggs & Stratton Service Dealer.
WARNING
DO NOT store near a stove, furnace or water
heater which uses a pilot light or any device
that can create a spark.
SERVICE
We recommend that you see an authorized Briggs & Stratton
Service Dealer for all maintenance and service of the outboard
and outboard parts. Use only genuine Briggs & Stratton parts.
Each Authorized Briggs & Stratton Service Dealer carries a
stock of Genuine Briggs & Stratton Parts and is equipped with
special service tools. Trained mechanics assure expert repair
service on all Briggs & Stratton engines. Only dealers
recognized as Authorized Briggs & Stratton" meet the higher
Briggs & Stratton service standards.
You may locate your nearest Authorized Briggs & Stratton
Service Dealer in our dealer locator map on our web site
www.briggspowerproducts.com or in the
™
Yellow
Pages™" directory under Lawn Mowers" or Engines, Gaso-
line" or Gasoline Engines," or similar category.
Note: Walking fingers logo and Yellow Pages" are
registered trademarks in various jurisdictions.
Partial List of Genuine Briggs & Stratton Parts
Part
Part No.
Oil (20 oz.) 100005. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil (48 oz.) 100028. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil filter 692513. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil pump kit (uses standard electric drill 5056. . . . . . . . . .
to remove oil from engine quickly)
Fuel stabilizer (1 oz., 30 ml single use pouch) 5058. . . . .
Fuel stabilizer (4.2 oz., 125 ml bottle) 5041. . . . . . . . . . .
Fuel filter 298090 (5018). . . . . . . . . . . . . . . . . . . . . . . . .
Flat air cleaner cartridge 491588 (5043). . . . . . . . . . . . . .
Flat air cleaner pre-cleaner 493537. . . . . . . . . . . . . . . . . .
Oval air cleaner cartridge 498596. . . . . . . . . . . . . . . . . . .
Oval air cleaner pre-cleaner 273356. . . . . . . . . . . . . . . . .
Resistor spark plug 499608. . . . . . . . . . . . . . . . . . . . . . .
Long life platinum spark plug 5066. . . . . . . . . . . . . . . . .
(OHV engines − set gap to .020 in. or .50 mm)
Spark tester 19368. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark plug wrench 19374. . . . . . . . . . . . . . . . . . . . . . . . .