operating & maintenance instructions -...

Document: - page 1 (Black)Screen angle and frequency: 45.0000, 150.0000

Model SeriesCovered in

This Manual

90000100000

Operating & MaintenanceInstructions

Month Day YearNote: General Model Series numbers noted above are inclusive of the specific modelnumber found on your engine. To get replacement parts or technical assistance inthe future, write your engine Model, Type, Code and date of purchase here.

Model Type Code

TABLE OF CONTENTSSafety 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Information 6. . . . . . . . . . . . . . . . . . . . . . . . Oil 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuel 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starting Information 9. . . . . . . . . . . . . . . . . . . . . . . Starting and Stopping 10. . . . . . . . . . . . . . . . . . . . . Maintenance 11-13. . . . . . . . . . . . . . . . . . . . . . . . . Adjustments 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts and Service & Storage 15-16. . . . . . . . . . . . Warranty Information 17. . . . . . . . . . . . . . . . . . . . .

WARNINGBriggs & Stratton does not approve or authorize the use ofthese engines on 3-wheel All Terrain Vehicles (ATVs), motorbikes, fun/recreational go-karts, aircraft products or vehiclesintended for use in competitive events. Use of these engines insuch applications could result in property damage, seriousinjury (including paralysis), or even death.

Need assistance? Go to www.briggsandstratton.comfor detailed information regarding Briggs & Stratton engines.

Or call, 1-800-233-3723, (U.S.A. and Canada)to hear a menu of pre-recorded messages offering engine maintenance information.

PRINTED IN U.S.A. Copyright 2003 by Briggs & Stratton Corporation FORM NO. 275508-5/03


2

The Power That Works For You.Thank you for selecting a Briggs & Stratton engine to power your equipment.

Briggs & Stratton is committed to producing a line of engines which will make your life’s chores easier toperform. We have, at the same time, improved the design of our engines so they are environmentallyfriendly. Since 1995, we have succeeded in reducing smog-forming exhaust emissions from our enginesby 70%. Briggs & Stratton’s efforts have not stopped there. We are also committed to designing andintroducing even cleaner engines in the future, while maintaining our reputation for excellent utility andvalue.

Briggs & Stratton’s environmental awareness has resulted in the engineering of the “Smart-Fill” gascan, featuring a spill resistant nozzle which opens only when fully inserted into the gas tank, and whichshuts off automatically when the tank is full. Because refueling spills can harm the environment, theSmart-Fill container helps preserve a stronger ecosystem by reducing this source of pollution.

We hope you will enjoy your new engine and equipment. We welcome you to our worldwide family ofBriggs & Stratton engine users.

Best Wishes Always,

The Employees of Briggs & Stratton Corporation

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3

BEFORE OPERATING ENGINE

• Read entire Operating & Maintenance Instructions ANDthe instructions for the equipment this engine powers.*

• Failure to follow instructions could result in serious injuryor death.

THE OPERATING & MAINTENANCE INSTRUCTIONSCONTAIN SAFETY INFORMATION TO• Make you aware of hazards associated with engines• Inform you of the risk of injury associated with those hazards, and• Tell you how to avoid or reduce the risk of injury.

275508

The safety alert symbol ( ) is used to identify safetyinformation about hazards that can result in personal injury.

A signal word (DANGER, WARNING, or CAUTION) isused with the alert symbol to indicate the likelihood and thepotential severity of injury. In addition, a hazard symbolmay be used to represent the type of hazard.

DANGER indicates a hazard which, if notavoided, will result in death or serious injury.

WARNING indicates a hazard which, if notavoided, could result in death or serious injury.

CAUTION indicates a hazard which, if notavoided, might result in minor or moderateinjury.

CAUTION, when used without the alert symbol,indicates a situation that could result in damageto the engine.

WARNINGThe engine exhaust from this prod-uct contains chemicals known to theState of California to cause cancer,birth defects, or other reproductiveharm.

HAZARD SYMBOLS AND MEANINGS

Explosion

Toxic Fumes

Moving Parts

ShockHot Surface

Kickback

Fire

THE INTERNATIONAL SYMBOLS USEDON THE ENGINE OR

IN THIS MANUAL INCLUDE:

On Off

Fuel Shutoff

Read Owner’sManual

Stop FuelChoke

Safety Alert

Oil

* Briggs & Stratton does not necessarily know what equipment this engine will power. For that reason, you should carefully readand understand the operating instructions for the equipment on which your engine is placed.


4

SAFETY

Gasoline and its vapors are extremelyflammable and explosive.

Fire or explosion can cause severe burnsor death.

WARNING

WHEN ADDING FUEL• Turn engine OFF and let engine cool at least 2

minutes before removing gas cap.• Fill fuel tank outdoors or in well-ventilated area.• Do not overfill fuel tank. Fill tank to approximately

1-1/2 inches below top of neck to allow for fuelexpansion.

• Keep gasoline away from sparks, open flames,pilot lights, heat, and other ignition sources.

• Check fuel lines, tank, cap, and fittings frequentlyfor cracks or leaks. Replace if necessary.

WHEN STARTING ENGINE• Make sure spark plug, muffler, fuel cap and air

cleaner are in place.• Do not crank engine with spark plug removed.• If fuel spills, wait until it evaporates before starting

engine.• If engine floods, set choke to OPEN/RUN position,

place throttle in FAST and crank until engine starts.

WHEN OPERATING EQUIPMENT• Do not tip engine or equipment at angle which

causes gasoline to spill.• Do not choke carburetor to stop engine.

WHEN TRANSPORTING EQUIPMENT• Transport with fuel tank EMPTY or with fuel shut-off

valve OFF.

WHEN STORING GASOLINE OR EQUIPMENTWITH FUEL IN TANK• Store away from furnaces, stoves, water heaters or

other appliances that have pilot light or otherignition source because they can ignite gasolinevapors.

Starting engine creates sparking.

Sparking can ignite nearby flammablegases.

Explosion and fire could result.

WARNING

• If there is natural or LP gas leakage in area, do notstart engine.

• Do not use pressurized starting fluids becausevapors are flammable.

WARNING

Rapid retraction of starter cord (kickback) willpull hand and arm toward engine faster thanyou can let go.

Broken bones, fractures, bruises or sprainscould result.

• When starting engine, pull cord slowly untilresistance is felt, then pull rapidly.

• Remove all external equipment/engine loadsbefore starting engine.

• Direct coupled equipment components such as,but not limited to, blades, impellors, pulleys,sprockets, etc., must be securely attached.

WARNING

Rotating parts can contact or entanglehands, feet, hair, clothing, or accessories.

Traumatic amputation or severe lacerationcan result.

• Operate equipment with guards in place.• Keep hands and feet away from rotating parts.• Tie up long hair and remove jewelry.• Do not wear loose-fitting clothing, dangling

drawstrings or items that could become caught.


5

SAFETY

Engines give off carbon monoxide, anodorless, colorless, poison gas.

Breathing carbon monoxide can causenausea, fainting or death.

WARNING

• Start and run engine outdoors.• Do not start or run engine in enclosed area, even if

doors or windows are open.

WARNING

Running engines produce heat. Engineparts, especially muffler, become extremelyhot.

Severe thermal burns can occur on contact.

Combustible debris, such as leaves, grass,brush, etc. can catch fire.

• Allow muffler, engine cylinder and fins to coolbefore touching.

• Remove accumulated combustibles from mufflerarea and cylinder area.

• Install and maintain in working order a sparkarrester before using equipment on forest-covered,grass-covered, brush-covered unimproved land.The state of California requires this (Section 4442of the California Public Resources Code). Otherstates may have similar laws. Federal laws applyon federal land.

WARNING

Unintentional sparking can result in fire orelectric shock.

Unintentional start-up can result in en-tanglement, traumatic amputation, or lac-eration.

BEFORE PERFORMING ADJUSTMENTS ORREPAIRS• Disconnect spark plug wire and keep it away from

spark plug.• Disconnect battery at negative terminal (only

engines with electric start).

WHEN TESTING FOR SPARK• Use approved spark plug tester.• Do not check for spark with spark plug removed.

ENGINE INFORMATION

TECHNICAL INFORMATIONPOWER RATINGS: The power ratings for an individual enginemodel are initially developed by starting with SAE (Society of Auto-motive Engineers) code J1940 (Small Engine Power & TorqueRating Procedure) (Revision 2002-05). Given both the wide arrayof products on which our engines are placed, and the variety of en-vironmental issues applicable to operating the equipment, it maybe that the engine you have purchased will not develop the ratedhorsepower when used in a piece of power equipment (actual “on-site” power). This difference is due to a variety of factors including,but not limited to, the following: differences in altitude, tempera-

ture, barometric pressure, humidity, fuel, engine lubrication, maxi-mum governed engine speed, individual engine to engine variabil-ity, design of the particular piece of power equipment, the mannerin which the engine is operated, engine run-in to reduce frictionand clean out of combustion chambers, adjustments to the valvesand carburetor, and other factors. The power ratings may also beadjusted based on comparisons to other similar engines utilizedin similar applications, and will therefore not necessarily match thevalues derived using the foregoing codes.


6

ENGINE INFORMATION

1. Carburetor2. Air cleaner3. Rope handle4. Finger guard5. Oil fill/Dipstick6. Engine Model Type Code

xxxxx xxxx xx xxxxxxxx7. Muffler/(Muffler guard, if equipped)/

(Spark arrester, if equipped)

8. Spark plug wire9. Governor control lever

10. Primer bulb11. Fuel tank12. Fuel fill13. Flywheel

43

6

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119

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13

GENERAL INFORMATIONThis is a single cylinder, L-head, air-cooled engine. It is alow emissions engine.

MODEL SERIES 90000Bore 2-9/16 in. (65.09 mm). . . . . . . . . . . . . . . . . . . . . . . . . .

Stroke 1-3/4 in. (44.45 mm). . . . . . . . . . . . . . . . . . . . . . . . .

Displacement 9.02 cu. in. (147.8 cc). . . . . . . . . . . . . . . . . .

MODEL SERIES 100000Bore 2-9/16 in. (65.09 mm). . . . . . . . . . . . . . . . . . . . . . . . . .

Stroke 1-7/8 in. (47.63 mm). . . . . . . . . . . . . . . . . . . . . . . . .

Displacement 9.67 cu. in. (158.6 cc). . . . . . . . . . . . . . . . . .

TUNE-UP SPECIFICATIONSArmature air gap 0.006 – 0.010 in. (0.15 – 0.25 mm). . .

Spark plug gap 0.030 in. (0.76 mm). . . . . . . . . . . . . . . . . .

Valve clearance with valve springs installed and piston 1/4 in.(6 mm) past top dead center (check when engine is cold).See Repair Manual P/N 270962.Intake 0.005 – 0.007 in. (0.13 – 0.18 mm). . . . . . . . . . . . .

Exhaust 0.007 – 0.009 in. (0.18 – 0.23 mm). . . . . . . . . . .

Note: For practical operation, the horsepower loadingshould not exceed 85% of rated horsepower. Engine powerwill decrease 3-1/2% for each 1,000 feet (300 meters)above sea level and 1% for each 10° F (5.6° C) above 77° F(25° C). It will operate satisfactorily at an angle up to 15°.


7

OIL275508

CAUTION: This engine is shipped from Briggs &Stratton without oil. Check oil level before startingengine. If you start the engine without oil, the enginewill be damaged beyond repair and will not becovered under warranty.

OIL CAPACITYThe engine holds approximately 5/8 qt (20 ozs; 0.6 liter).

TYPE OF OIL TO USE• Use a high quality detergent oil classified “For Service

SF, SG, SH, SJ” or higher, such as Briggs & StrattonSAE 30.

• Do not use special additives.• Choose a viscosity according to the table opposite.

Note: Synthetic oil meeting ILSAC GF-2, APIcertification mark and API service symbol(shown at left) with “SJ/CF ENERGY CON-SERVING” or higher, is an acceptable oil at alltemperatures. Use of synthetic oil does notalter required oil change intervals.

°F -20 0 20 40 60 80 100

°C -30 -20 -10 0 10 20 30 40

STARTING TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

*

**

32

* CAUTION: Air cooled engines run hotter thanautomotive engines. The use of non-syntheticmulti-viscosity oils (5W-30, 10W-30, etc.) intemperatures above 40° F (4° C) will result in higherthan normal oil consumption. When using amulti-viscosity oil, check oil level more frequently.

** CAUTION: SAE 30 oil, if used below 40° F (4° C), willresult in hard starting and possible engine boredamage due to inadequate lubrication.

SAE Viscosity Grades

CHECKING AND ADDING OIL• Check oil level before starting the engine.

• Check level daily, or after every eight (8) hours.

• Keep oil level at FULL.

CAUTION: Do not overfill. Overfilling with oil may cause:Smoking,Hard starting,Spark plug fouling, orOil saturation of air filter.

[1] Place engine level andclean around oil fill area.

[2] Remove dipstick and wipe clean with cloth.

[3] Replace and tighten dipstick. Remove andcheck oil level. Oil level should be at FULLline on dipstick.

[4] If needed, add oil slowly -recheck. Do not over fill.

[5] Replace and tighten dipstick.

High Oil Fill(if equipped)

[1] Place engine level andclean around oil fill area.

[2] Remove dipstick and wipe clean with cloth.

[3] Replace and tighten dipstick. Remove andcheck oil level. Oil level should be at FULLline on dipstick.

[4] If needed, add oil slowly -recheck. Do not over fill.

[5] Replace and tighten dipstick.

Low Oil Fill(if equipped)


8

FUEL

TYPE OF FUEL TO USE• Use clean, fresh, regular unleaded gasoline with a

minimum of 77 octane. Fresh fuel prevents gum fromforming in the fuel system or on essential carburetor parts.Purchase fuel in quantity that can be used within 30 days.

• Do not use gasoline which contains Methanol.• Do not mix oil with gasoline.• For engine protection use Briggs & Stratton Gasoline

Additive available from your Authorized Briggs &Stratton Dealer.

• This engine is certified to operate on gasoline. ExhaustEmission Control System: EM (Engine Modifications).

CAUTION: Some fuels, called oxygenated orreformulated gasoline, are gasoline blended withalcohols or ethers. Excessive amounts of theseblends can damage the fuel system or causeperformance problems. If any undesirable oper-ating symptoms occur, use gasoline with a lowerpercentage of alcohol or ether.

ADDING FUEL

Fuel Fill

WARNING

[1] Remove cap. Fill tank to approximately 1-1/2inches below top of neck to allow for fuelexpansion. Be careful not to overfill.Briggs & Stratton Smart-fill� fuel can fills to thecorrect level and automatically shuts off, reduc-ing spills and emissions.

[2] Replace cap before starting.

• Turn engine OFF and let engine cool at least 2minutes before removing gas cap.

• Fill fuel tank outdoors or in well-ventilated area.• Keep gasoline away from sparks, open flames,

pilot lights, heat, and other ignition sources.• If fuel spills, wait until it evaporates before

starting engine.

Neck


9

STARTING

• Do not use pressurized starting fluids.• Vapors are flammable.• Make sure spark plug, muffler, fuel cap and air

cleaner are in place.• Do not crank engine with spark plug removed.• If fuel spills, wait until it evaporates before

starting engine.• If engine floods, set choke to OPEN/RUN

position, place throttle in FAST and crank untilengine starts.

WARNING

♦Store and fuelequipment in levelposition.

♦Use fresh fuel. (SeeFuel.)

♦Use correct type ofoil for expectedstarting tempera-ture. (See Oil.)

♦Remove externalequipment/engineloads. (See equip-ment operatinginstructions.)

♦Start lawn moweron hard surface orover previously cutgrass.

♦Periodically removegrass buildup undermower deck. (SeeMaintenance.)

♦After engine hasstarted, let it warmup several secondsto several minutes,depending on out-side temperature.

♦For maximum per-formance and life,operate engine withthrottle in FAST.

STARTING AND OPERATING TIPS

If you are starting your engine for theFIRST time, read the informationoutlined under Starting A New Engine.

CAUTION: This engine is shipped from Briggs & Strattonwithout oil. Check oil level before starting engine.If you start the engine without oil, the engine will bedamaged beyond repair and will not be coveredunder warranty.

CAUTION:

• Smoking,• Hard starting,• Spark plug fouling,• Oil saturation of air filter.

If engine is tipped to transport equipment, removegrass, drain oil, etc., keep spark plug side ofengine up. Tipping engine with spark plug downmay cause:

KEEP SPARK PLUG UP

[1] Move throttle to FAST.(if equipped)

[2] Firmly push primer bulb 5 times.

Primerbulb

Add oil and fuel as instructed in this manual prior toattempting to start engine. (See Oil and Fuel)

Continue at step [4] under TO START ENGINE.

STARTING A NEW ENGINE


10

STARTING AND STOPPING

REWIND (MANUAL) STARTERTO START ENGINEWhen starting engine thereafter, push primer bulb firmly 3 times as illustrated below and pull starter rope as instructed below.

[1] Check oil level (see p. 8).

[2] Move throttle (if equipped) to FAST.

[3] Firmly push primerbulb 3 times.

Primerbulb

[4] Close safety brake handle on lawn mowersand any other equipment with this feature.

[5] Grasp rope handle. Pull slowly until resistance isfelt, then pull rapidly to start engine and avoidkickback.

[6] Let engine warm up.Operate engine withthrottle in FAST.

WARNING • When starting engine,pull cord slowly untilresistance is felt, thenpull rapidly.

TO STOP ENGINE

[1] Move throttle (if equipped)to SLOW, then

[2] Release safety brake con-trol handle.

CAUTION: Do not stop engine bymoving choke controlto CHOKE. Backfire,fire or engine damagecould occur.


11

MAINTENANCE

MAINTENANCERegular maintenance will improve the performance andextend the life of the engine. See any Authorized Briggs &Stratton Dealer for service. Use only genuine Briggs &Stratton parts. Other parts may not perform as well,may damage the engine, and may result in injury. Inaddition, use of other parts may void your warranty.

EMISSION CONTROLMaintenance, replacement or repair of the emissioncontrol devices and systems may be performed by anynonroad engine repair establishment or individual.However, to obtain no charge repairs under the terms andprovisions of the Briggs & Stratton warranty statement, anyservice or emission control part repair or replacement mustbe performed by a factory authorized dealer.

Follow the instructions and schedules indicated below.

Task

Perform task at hourlyor calendar interval,

whichever comes first.

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Check Oil Level �

Change Oil �*

Service Oil-Foam� aircleaner element �**

Inspect spark arrester (if equipped) �

Replace spark plug �

Clean cooling system �**

Clean combustionchamber �

* Change oil after first 5 to 8 hours of use, then every50 hours or every season. Change oil every 25 hourswhen operating the engine under heavy load or in hightemperatures.

** Clean more often under dusty conditions or whenairborne debris is present. Replace air cleaner parts, ifvery dirty.

CAUTION: Used oil is a hazardous wasteproduct. Dispose of used oil properly. Do notdiscard with household waste. Check with yourlocal authorities, service center, or dealer for safedisposal/recycling facilities.

CAUTION

• Smoking,• Hard starting,• Spark plug fouling,• Oil saturation of air filter.

If engine is tipped to transport equipment, remove grass,drain oil, etc., keep spark plug side of engine up.Tipping engine with spark plug down may cause:

KEEP SPARK PLUG UP

CHANGING OIL

SPARKPLUG

SIDE OIL DRAIN (IF EQUIPPED)

TOP OIL DRAIN

[1] Run engine until it runsout of fuel. Otherwise,fuel can leak out, creatinga fire/explosion hazard,when you tip engine inStep 4.

[2] Disconnect spark plugwire and keep it awayfrom spark plug.

[3] With engine OFF but still warm remove dipstick.

[4] Top oil drain, keep spark plug side up. Bottom orside oil drain (if equipped), keep engine level. Drainoil into appropriate receptacle.

Note: Top oil drain is recommended method, howeveroil can drain from side (if equipped) or bottom as shown.[5] Place engine level. Add about 5/8 quart

(20 ounces: 0.6 liter) new oil. Fill to FULL line ondipstick. Do not overfill. Replace dipstick.

WARNING

BOTTOM OIL DRAIN

RATCHETAND

EXTENSION

CUTTINGBLADE

OILDRAINPLUG

DRAINPLUGS

PIPE3/8”

SQUARE

Low Oil Fill (if equipped)

High Oil Fill (if equipped)


12

MAINTENANCE

AIR CLEANER

All engines have an Oil-Foam� air cleaner.

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Style 1

Style 2

�

Replace Oil-Foam element if very dirty or damaged.

• Remove screw.

• Carefully remove air cleaner to prevent debris fromfalling into carburetor.

• Take air cleaner apart and clean all parts. WashOil-Foam element in liquid detergent and water.Squeeze dry in a clean cloth. Saturate Oil-Foamelement in engine oil and squeeze in a clean cloth toremove excess oil.

• Install Oil-Foam element and cup, if equipped, inbody.

Note: On Style 2 air cleaner, install element so lip �

extends over edge of body to form protective seal whencover is assembled.

• Install air cleaner securely on carburetor with screw.

AIR COOLING SYSTEMGrass or chaff may clog engine’s air cooling system,especially after prolonged service cutting tall, dry grass.Internal cooling fins and surfaces may require cleaning toprevent overheating and engine damage.

TAB

Cover / blower housing

REMOVEPLASTIC COVERMODEL 100000

REMOVEBLOWER HOUSING

Air Cooling System

DO NOTBEND ORREMOVE

KEEP AREASWITHIN HEAVY LINE

CLEAR OF ALL DEBRIS

DO NOT LOOSEN BAND BRAKE SCREWS

SCREWS

COVERSCREWS

SCREW

REMOVING AND RE-INSTALLING COVER/BLOWER HOUSING[1] Remove 2 screws from cover (if equipped) and lift

cover straight until tab clears.

[2] Remove 3 screws and blower housing.

Note: Do not loosen 2 band brake bracket screws. Do notbend or remove flywheel guard.

[3] Clean areas shown.

[4] Reinstall blower housing and cover (if equipped).


13

MAINTENANCE

ENGINE AND ENGINE PARTSWe recommend that you see an authorized Briggs & Stratton Service Dealer for all maintenance and service of the engineand engine parts. Use only genuine Briggs & Stratton parts.

WARNINGIf you perform any maintenance on the engine, first disconnect the spark plug wirefrom the spark plug, and disconnect the battery at the negative terminal (electricstarter engines only) to prevent unintentional sparking. Unintentional sparking canresult 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 a hammer or hard object because the flywheel may

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

MUFFLER

Replacement parts for themuffler must be the sameand installed in the sameposition as the original parts,otherwise fire can occur.

If muffler is equipped withspark arrester screen, re-

move screen for inspection. Replace screen if damagedor plugged.

WARNING

SPARK PLUG

Use only Briggs & Stratton Spark Tester (part number19368) to check for spark.

Note: In some areas, lo-cal law requires using re-sistor spark plug to sup-press ignition signals. Ifthis engine was originallyequipped with resistorspark plug, use same typefor replacement.

.030” (0.76 mm)WIRE GAGE

COMBUSTION DEPOSITS

We recommend that after every 100-300 hours you havean authorized Briggs & Stratton Service Dealer removecombustion deposits from the cylinder, cylinder head, topof piston, and around valves.

FUEL SYSTEM

WARNINGReplacement parts for fuelsystem (cap, hoses, tanks,filters, etc.) must be thesame as original parts,otherwise fire can occur.

CLEANING DEBRIS

CAUTION: Do not use water to clean engine parts.Water could contaminate fuel system. Use a brushor dry cloth.

Engine parts should be keptclean to reduce the risk ofoverheating and ignition of accu-mulated debris. This is especial-ly important if cutting tall grass.

WARNING

Daily or before every use, clean grass, chaff or accumu-lated debris from engine. Keep linkage, spring and controlsclean. Keep area around and behind muffler free of anycombustible debris.

Finger Guard Linkage, Springs& Controls

Muffler Area & Spark Arrester

CLEAN

ROTATINGSCREENFINGER GUARD

CLEAN

CLEAN


14

ADJUSTMENTS

WARNING

Prevent unintentional starting.

Before performing adjustments, remove spark plugwire from spark plug.

CARBURETOR ADJUSTMENT

The carburetor on this engine is not adjustable.

WARNING

The manufacturer of the equipment on which thisengine is installed specifies top speed at which theengine will be operated. DO NOT EXCEED this speed.

[1] Loosen casing clamp screw.

[2] Move governor control lever, wire, and casing as faras possible in direction shown.

[3] Move remote throttle control to FAST.

[4] Tighten casing clamp screw.

[5] Move throttle to STOP (if equipped).

GOVERNORCONTROL

LEVER

CASING CLAMPSCREW

CASING CLAMPSCREW

ALTERNATEROUTING

THROTTLE ADJUSTMENTIf the engine does not start or if it runs roughly, theremote throttle control may need adjustment. Seeyour authorized Briggs & Stratton dealer or followthe instructions below.

TO ADJUST REMOTE THROTTLE** On some models the governor lever is bent into

position and is not adjustable.

GOVERNOR CONTROLLEVER

CASING CLAMPSCREW

OR

CASING CLAMPSCREW

ALTERNATEROUTING

TO ADJUST STOP SWITCH

[1] Governor control lever should make good contactwith stop switch. Readjust if necessary.

[2] Check operation of throttle.

STOPSWITCH


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SERVICE & STORAGE

PARTIAL LIST OF GENUINE BRIGGS & STRATTON PARTS

PART PART NO.Oil-Foam air cleaner element 698369Oil-Foam air cleaner element used with cup 272235

(5047)Oil 100005Gas additive 5041Resistor spark plug 802592Standard spark plug 492167Long life platinum spark plug 5062(used on most L-head engines)Spark plug wrench 89838Spark tester 19368Oil pump kit 5056(uses standard electric drill to remove oil from engine quickly)

SERVICESee an Authorized Briggs & Stratton Service Dealer. Eachone carries a stock of Genuine Briggs & Stratton Parts andis equipped with special service tools. Trained mechanicsassure expert repair service on all Briggs & Strattonengines. Only dealers advertising as “Authorized Briggs &Stratton” are required to meet Briggs & Stratton standards.When you purchase equipment powered by aBriggs & Stratton engine, you are assured ofhighly skilled, reliable service at more than30,000 Authorized Service Dealersworldwide, including more than 5,000 MasterService Technicians. Look for these signswherever Briggs & Stratton service is offered.

You may locate your nearest Authorized Briggs & StrattonService Dealer in our dealer locator map on our web site�� or in the “Yellow Pages”

directory under “Engines, Gasoline” or “GasolineEngines,” or “Lawn Mowers” or similar category.

Note: Walking fingers logo and “Yellow Pages” are regis-tered trademarks in various jurisdictions.

An illustrated shop manual includescommon specifications and detailed in-formation covering adjustment, tune-upand repair of Briggs & Stratton singlecylinder, L-head, 4 cycle engines. It isavailable for purchase from an Autho-rized Briggs & Stratton Service Dealer oryou can order it from the factory. Write:Briggs & Stratton CorporationAttn: Service DivisionP. O. Box 1144Milwaukee, WI 53201

Part No. 270962


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SERVICE & STORAGE

STORAGEEngines stored over 30 days need special attention.

[1] To prevent gum from forming in fuel system or onessential carburetor parts:a) if fuel tank contains oxygenated or reformulatedgasoline (gasoline blended with an alcohol or anether), run engine until it stops from lack of fuel, or b) iffuel tank contains gasoline, either run engine until itstops from lack of fuel, or add a gasoline additive to thegas in the tank. (See parts list. Single – use pouches ofgas additive are available from your service dealer.) Ifyou use a gas additive, run the engine for severalminutes 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 plug and pour about 1/2 oz. (15 ml) of

engine oil into cylinder. Replace spark plug and crankslowly to distribute oil.

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

WARNING[5] Store in a clean, dry area.

Do not store in same areaas a stove, furnace, waterheater, or other appliancethat uses a pilot light orhas a device that cancreate a spark.

Engwnty1-03 - page 1 (Black)Screen angle and frequency: 45.0000, 150.0000

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LIMITED WARRANTYBriggs & Stratton Corporation will repair or replace, free of charge, any part(s) of the engine that is defective in material or workmanship or both.Transportation charges on parts submitted for repair or replacement under this warranty must be borne by purchaser. This warranty is effective for thetime periods and subject to the conditions stated below. For warranty service, find the nearest Authorized Service Dealer in our dealer locator mapat www.briggsandstratton.com, or by calling 1-800-233-3723, or as listed in the ‘Yellow Pages’.

THERE IS NO OTHER EXPRESS WARRANTY. IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR APARTICULAR PURPOSE, ARE LIMITED TO ONE YEAR FROM PURCHASE, OR TO THE EXTENT PERMITTED BY LAW ANY AND ALL IMPLIEDWARRANTIES ARE EXCLUDED. LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARE EXCLUDED TO THE EXTENTEXCLUSION IS PERMITTED BY LAW. Some states or countries do not allow limitations on how long an implied warranty lasts, and some states orcountries do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation and exclusion may not apply to you.This warranty gives you specific legal rights and you may also have other rights which vary from state to state and country to country.

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Commercial Use2 years

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Consumer Use 2 years 2 years

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* Note the following special warranty periods: 2 years for Classic engines in the European Union and Eastern European countries, for all consumer products inthe European Union, and for emission control systems on engines certified by EPA and CARB. 5 years for consumer use, 90 days for commercial use of Touch-N-Mow starter on Quantum and Intek engines. Engines used in competitive racing or on commercial or rental tracks are not warrantied.

The warranty period begins on the date of purchase by the first retail consumer or commercial end user, and continues for the period of time stated in the tableabove. “Consumer use” means personal residential household use by a retail consumer. “Commercial use” means all other uses, including use for commercial,income producing or rental purposes. Once an engine has experienced commercial use, it shall thereafter be considered as a commercial use engine for pur-poses of this warranty.

NO WARRANTY REGISTRATION IS NECESSARY TO OBTAIN WARRANTY ON BRIGGS & STRATTON PRODUCTS. SAVE YOUR PROOF OF PURCHASERECEIPT. IF YOU DO NOT PROVIDE PROOF OF THE INITIAL PURCHASE DATE AT THE TIME WARRANTY SERVICE IS REQUESTED, THEMANUFACTURING DATE OF THE PRODUCT WILL BE USED TO DETERMINE THE WARRANTY PERIOD.

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EMISSION CONTROL WARRANTY COVERAGE IS APPLICABLE TO CERTIFIED ENGINES PURCHASED IN CALIFORNIA IN 1995 AND THERE-AFTER, WHICH ARE USED IN CALIFORNIA, AND TO CERTIFIED MODEL YEAR 1997 AND LATER ENGINES WHICH ARE PURCHASED ANDUSED ELSEWHERE IN THE UNITED STATES (AND AFTER JANUARY 1, 2001 IN CANADA).

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The California Air Resources Board (CARB), U.S.EPA and B&S are pleased to explain the EmissionControl System Warranty on your model year2002 and later small off-road engine (SORE). InCalifornia, new small off-road engines must be de-signed, built and equipped to meet the State’sstringent anti-smog standards.

Elsewhere in the United States, new non-road,spark-ignition engines certified for model year1997 and later must meet similar standards setforth by the U.S. EPA. B&S must warrant the emis-sion control system on your engine for the periodsof time listed below, provided there has been noabuse, neglect or improper maintenance of yoursmall off-road engine.

Your emission control system includes partssuch as the carburetor, air cleaner, ignition sys-tem, muffler and catalytic converter. Also in-cluded may be connectors and other emissionrelated assemblies.Where a warrantable condition exists, B&S willrepair your small off-road engine at no cost toyou including diagnosis, parts and labor.

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Small off-road engines are warranted relative to emission control parts defects for a period of two years, subject to provisions set forth below. If anycovered part on your engine is defective, the part will be repaired or replaced by B&S.

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As the small off-road engine owner, you are re-sponsible for the performance of the requiredmaintenance listed in your Operating and Main-tenance Instructions. B&S recommends thatyou retain all your receipts covering mainte-nance on your small off-road engine, but B&Scannot deny warranty solely for the lack of re-ceipts or for your failure to ensure the perfor-mance of all scheduled maintenance.

As the small off-road engine owner, you shouldhowever be aware that B&S may deny you war-ranty coverage if your small off-road engine or apart has failed due to abuse, neglect, impropermaintenance or unapproved modifications.You are responsible for presenting your smalloff-road engine to an Authorized B&S ServiceDealer as soon as a problem exists.

The undisputed warranty repairs should becompleted in a reasonable amount of time, notto exceed 30 days.If you have any questions regarding your war-ranty rights and responsibilities, you should con-tact a B&S Service Representative at1-414-259-5262.The emission warranty is a defects warranty.Defects are judged on normal engine perfor-mance. The warranty is not related to an in-useemission test.

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The following are specific provisions relative to your Emission Control Defects Warranty Coverage. It is in addition to the B&S engine warranty for non-regulated engines found in the Operating and Maintenance Instructions.1. Warranted Parts

Coverage under this warranty extends onlyto the parts listed below (the emission con-trol systems parts) to the extent these partswere present on the engine purchased.a. Fuel Metering System

• Cold start enrichment system• Carburetor and internal parts• Fuel Pump

b. Air Induction System• Air cleaner• Intake manifold

c. Ignition System• Spark plug(s)• Magneto ignition system

d. Catalyst System• Catalytic converter• Exhaust manifold• Air injection system, Pulse valve

e. Miscellaneous Items• Vacuum, temperature, position,

time sensitive valvesand switches

• Connectors and assemblies

2. Length of CoverageB&S warrants to the initial owner and eachsubsequent purchaser that the WarrantedParts shall be free from defects in materialsand workmanship which caused the failureof the Warranted Parts for a period of twoyears from the date the engine is delivered toa retail purchaser.

3. No ChargeRepair or replacement of any WarrantedPart will be performed at no charge to theowner, including diagnostic labor whichleads to the determination that a WarrantedPart is defective, if the diagnostic work isperformed at an Authorized B&S ServiceDealer. For emissions warranty servicecontact your nearest Authorized B&S Ser-vice Dealer as listed in the “Yellow Pages”under “Engines, Gasoline,” “Gasoline En-gines,” “Lawn Mowers,” or similar category.

4. Claims and Coverage ExclusionsWarranty claims shall be filed in accordancewith the provisions of the B&S Engine War-ranty Policy. Warranty coverage shall be ex-cluded for failures of Warranted Parts whichare not original B&S parts or because ofabuse, neglect or improper maintenance as

set forth in the B&S Engine Warranty Policy.B&S is not liable to cover failures of War-ranted Parts caused by the use of add-on,non-original, or modified parts.

5. MaintenanceAny Warranted Part which is not scheduledfor replacement as required maintenance orwhich is scheduled only for regular inspec-tion to the effect of “repair or replace as nec-essary” shall be warranted as to defects forthe warranty period. Any Warranted Partwhich is scheduled for replacement as re-quired maintenance shall be warranted as todefects only for the period of time up to thefirst scheduled replacement for that part. Anyreplacement part that is equivalent in perfor-mance and durability may be used in the per-formance of any maintenance or repairs.The owner is responsible for the perfor-mance of all required maintenance, as de-fined in the B&S Operating and MaintenanceInstructions.

6. Consequential CoverageCoverage hereunder shall extend to the fail-ure of any engine components caused bythe failure of any Warranted Part still underwarranty.

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6,077,0636,064,0276,014,8085,894,7155,852,9515,823,153

5,819,5135,813,3845,765,7135,645,0255,642,7015,619,845

5,606,9485,606,8515,548,9555,546,9015,503,1255,501,203

5,497,6795,320,7955,271,3635,269,7135,265,7005,243,878

5,235,9435,197,4255,197,4225,191,8645,188,0695,186,142

5,138,9965,086,8905,070,8295,058,5445,040,6445,009,208

4,996,9564,977,8794,971,2194,895,1194,819,5934,719,682

4,633,5564,630,4984,522,0804,520,2884,512,4994,453,507

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