Filter
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4
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/cm
2
), 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 sup-
plied 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
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 start-
up can result in entanglement, traumatic
amputation or laceration. Use only correct
tools.
WARNING
• 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).
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 cover
On 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.
Engine parts should be kept
clean to reduce the risk of
overheating and ignition of ac-
cumulated debris.
WARNING
FUEL FILTER
WARNING
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
Replacement parts for the muf-
fler must be the same and
installed in the same position as
the original parts, otherwise fire
can occur.
WARNING
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),
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.
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.
WARNING
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-
low Pagest" directory under Engines,
Gasoline" or Gasoline Engines," or Lawn
Mowers" or similar category.
™
An illustrated shop manual in-
cludes common specifications
and detailed information cover-
ing adjustment, tune-up and re-
pair 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:
Briggs & Stratton Corporation
Attn: Service Division
P. O. Box 1144,
Milwaukee, WI 53201
PARTIAL LIST OF
GENUINE 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. . . . . . . . . . . . . . . . . . . . . . . . . .