3.Screw filter on by hand until gasket contacts oil filter adapter. Tighten 1/2 to 3/4 turn more.

Fig. 3

4.Place engine level. Remove oil fill cap Í and add fresh oil. Oil filling procedure: First, add 67 ounces (2 liters). Start and run engine at idle for 30 seconds. Shut engine off and wait 30 seconds. Then, add more oil slowly to bring level to Full mark on dipstick Ë. Do not overfill.

5.Replace oil fill cap and dipstick.

CAUTION:

Used oil is a hazardous waste product. Dispose of used oil properly. Do not discard with household waste. Check with your local authorities, service center, or dealer for safe disposal/recycling facilities.

OIL PRESSURE

If oil pressure drops below 1-4 psi (.1-.2 kg/cm2), an oil pressure switch (if engine is equipped) will either activate a warning device or stop the engine. Check oil level with dipstick. If oil level is between ADD and FULL mark on dipstick, Do not try to restart engine. Contact an Authorized Briggs & Stratton Service Dealer. Do not operate engine

until oil pressure is corrected.

If oil level is below ADD mark on dipstick, add oil to bring level to FULL mark. Restart engine and check oil pressure. If pressure is normal, continue to operate engine.

Note: Oil pressure gauge, if engine is equipped, is supplied by manufacturer of equipment.

EMISSION CONTROL

Maintenance, replacement or repair of the emission control devices and systems may be performed by any nonroad engine repair establishment or individual. However, to obtain no charge repairs under the terms and provisions of the Briggs & Stratton warranty statement, any service or emission control part repair or replacement must be performed by a factory authorized dealer.

WARNING

AIR CLEANER

Fig. 7

CAUTION:

Do not use pressurized air or solvents to clean cartridge. Pressurized air can damage cartridge; solvents will dissolve cartridge.

Clean Air Filter Cartridge every 100 hours. To clean cartridge, gently tap on end with handle of screwdriver. Replace cartridge every 400 hours. Clean and replace more often under dusty conditions.

1.Remove cover Ê.

2.Remove cartridge Ë, and inspect. Replace if very dirty or any damage occurs to cartridge.

3.Carefully clean out air cleaner cover.4.Install cartridge in.5.Install coverOn Gasoline Engine: Install cover and lock clamps with rubber valve Ì down.Gasoline Engine:

Replace Safety Filter Cartridge Í every 600 hours, or with every other air filter cartridge replacement.

To replace cartridge, pull carefully to remove from air cleaner body, ensure no debris enters engine. Install new safety cartridge first, then install air filter cartridge over safety filter.

CLEANING DEBRIS

Fig. 8

Daily or before every use, clean accumulated debris from engine. Keep linkage, springs and controls clean. Keep area around and behind muffler free of any combustible debris.

Remove front carburetor cover Ê, and clean around intake manifold and carburetor.

CAUTION: Do not use water to clean engine parts. Water could contaminate fuel system. Low pressure compressed air may be used, be careful not to damage radiator fins.

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 additive to the gas in the tank. (See parts list. Single-use pouches of gas additive are available from your service dealer.) If you use a gas additive, run the engine for several minutes to circulate the additive through the carburetor. Then, engine and fuel can be stored up to 24 months.

2.While engine is still warm, change oil.

3.Remove spark plugs and pour about 1 oz. (30 ml) of engine oil into each cylinder. Replace spark plugs and crank slowly to distribute oil.

4.Clean engine of surface debris, chaff or grass.

WARNING

Store in a clean, dry area. Do not

 

store in same area as a stove,

 

furnace, water heater, or other ap-

 

pliance that uses a pilot light or has a

 

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.

When you purchase equipment powered by a Briggs & Stratton engine, you are assured of highly skilled, reliable service at more than 30,000 Authorized Service Dealers worldwide, including more than 6,000 Master Service Technicians. Look for these signs wherever Briggs & Stratton service is offered.

You may locate your nearest Authorized Briggs & Stratton Service Dealer in our dealer locator map on our

web site www.briggsandstratton.com or in the Yel-

If you perform any maintenance on the engine, first disconnect the spark plug wires from the spark plugs, and disconnect the battery at the negative terminal (electric starter engines only) to prevent unintentional sparking. Unintentional sparking can result in fire or electric shock. Unintentional startup can result in entanglement, traumatic amputation or laceration. Use only correct tools.

WARNING

WARNING

FUEL FILTER

WARNING

Engine parts should be kept clean to reduce the risk of overheating and ignition of accumulated debris.

low Pagest" directory under Engines,

™Gasoline" or Gasoline Engines," or Lawn Mowers" or similar category.

An illustrated shop manual includes common specifications and detailed information covering adjustment, tune-up and repair of Briggs & Stratton OHV, twin cylinder, 4 cycle engines. It is available for purchase from an Authorized Briggs & Stratton Service Dealer or you can order it from the factory. Write:

•Do not strike the flywheel with hammer or hard object. If done, the flywheel may shatter during operation.

•Do not tamper with governor spring, links or other parts to increase engine speed.

SPARK PLUGS

Fig. 6

Change spark plugs yearly. Use only Briggs & Stratton Spark Tester (part number 19368) to check for spark.

Gap spark plug to 0.76 mm (.030 in.) gap Ê.

Note: In some areas, local law requires using resistor spark plug to suppress ignition signals. If this engine was originally equipped with resistor spark plugs, use same type for replacement.

VALVE CLEARANCE

Check valve clearance every 250 hours. (See Tune-up Specifications on page 1).

Drain fuel tank or close fuel shut-off valve before replacing fuel filter. Otherwise, fuel can leak out, creating a fire/explosion hazard.When replacing fuel filter, ensure clamps are tight and fuel flows into the same direction as the arrow marked FLOW.

MUFFLER/FUEL SYSTEM

WARNING

Replacement parts for the muf-

 

fler must be the same and

 

installed in the same position as

 

 

the original parts, otherwise fire

 

can occur.

Replacement parts for fuel system (cap, hoses, tanks, filters, etc.) must be the same as original parts, otherwise fire can occur.

STORAGE

Engines stored over 30 days need special attention.1.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),

Briggs & Stratton CorporationAttn: Service DivisionP. O. Box 1144,Milwaukee, WI 53201PARTIAL LIST OFGENUINE BRIGGS & STRATTON PARTS
PART

PART NO.

Air cleaner cartridge . . . . . . . . . . . . . . . . . . . .

. . 809670

Safety air cleaner cartridge . . . . . . . . . . . . . . . .

. . 821136

Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . 100028

Oil filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . 492932

Fuel filter . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . 691035

Fuel pump . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . 809669

Gas additive . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . 5041

Resistor spark plug . . . . . . . . . . . . . . . . . . . . .

. . 692051

Spark plug wrench . . . . . . . . . . . . . . . . . . . . . .

. . . 19374

Spark tester . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . 19368

Oil pump kit . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . 5056

(uses standard electric drill to remove oil from engine quickly)

Repair manual . . . . . . . . . . . . . . . . . . . . . . . .

. . 272144

4