Model 90000 Classic 450 SeriesSprint 475 SeriesQuattro 475 Series

Model 100000 Sprint 500 SeriesQuattro 500 SeriesLX 500 SeriesSQ 500 SeriesQ 500/550 Series

BRIGGSandSTRATTON.com� Copyright Briggs & Stratton Corporation

Milwaukee, Wisconsin 53201 U.S.A.Form No. MS-3479-9/06

Printed in U.S.A.

Operating & Maintenance InstructionsBetriebsanleitung & WartungsvorschriftenDrifts- og vedligeholdelsesvejledningInstrucciones de Mantenimiento & OperaciónInstructions d’utilisation et de maintenanceÏäçãßåò Ëåéôïõñãßáò & ÓõíôÞñçóçòIstruzioni per l’uso e la manutenzioneAnvisninger for bruk og vedlikeholdGebruiksaanwijzingInstruções de operação e de manutençãoInstruktionsbokKäyttö & Huolto-ohjeet

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Note: (This note applies only to engines used in the U.S.A.) Maintenance, replacement or repair of the emission control devices and systems may be performedby any nonroad engine repair establishment or individual. However, to obtain no charge repairs under the terms and provisions of the Briggs & Strattonwarranty statement, any service or emission control part repair or replacement must be performed by a factory authorized dealer.

How To Use Manual Figures

� − � refer to figures inside covers.

− refer to engine components in figure �.

� − � refer to part/action in figures.

191

Record your engine Model, Type and Code numbershere for future use.

Record your date of purchase here for future use.

Technical Information

Engine Power Rating Information

The gross power rating for individual gas enginemodels is labeled in accordance with SAE (Society ofAutomotive Engineers) code J1940 (Small EnginePower & Torque Rating Procedure), and ratingperformance has been obtained and corrected inaccordance with SAE J1995 (Revision 2002-05).Actual gross engine power will be lower and isaffected by, among other things, ambient operatingconditions and engine-to-engine variability. Givenboth the wide array of products on which engines areplaced and the variety of environmental issuesapplicable to operating the equipment, the gasengine will not develop the rated gross power whenused in a given piece of power equipment (actual�on-site" or net horsepower). This difference is due toa variety of factors including, but not limited to,accessories (air cleaner, exhaust, charging, cooling,carburetor, fuel pump, etc.), application limitations,ambient operating conditions (temperature, humidity,altitude), and engine-to-engine variability. Due tomanufacturing and capacity limitations, Briggs &Stratton may substitute an engine of higher ratedpower for this Series engine.

Engine Components (see fig. �)

1 Engine Model Type Codexxxxxx xxxx xx xxxxxxxx

2 Governor control lever

3 Air cleaner

4 Rope handle

5 Finger guard

6 Muffler/spark arrester, if equipped

7 Spark plug

8 Primer bulb

9 Carburetor

10 Fuel fill

11 Fuel tank12 Flywheel

13 Oil fill/Dipstick

Hazard Symbols and Meanings

Explosion Toxic Fumes

Moving Parts Shock

Hot Surface

Kickback

Fire

International Symbols and Meanings

On Off

Fuel ShutoffRead Owner’s

Manual

Stop

Fuel

ChokeSafety Alert

Oil

Safety Precautions

* Briggs & Stratton does not necessarily know whatequipment this engine will power. For that reason,you should carefully read and understand theoperating instructions for the equipment on whichyour engine is placed.

BEFORE OPERATING ENGINE

• Read entire Operating & Maintenance InstructionsAND the instructions for the equipment this enginepowers.*

• Failure to follow instructions could result in seriousinjury or death.

THE OPERATING & MAINTENANCEINSTRUCTIONS CONTAIN SAFETYINFORMATION TO

• Make you aware of hazards associated with engines

• Inform you of the risk of injury associated with thosehazards, and

• Tell you how to avoid or reduce the risk of injury.

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

A signal word (DANGER, WARNING, or CAUTION) is usedwith the alert symbol to indicate the likelihood and the potentialseverity of injury. In addition, a hazard symbol may be used torepresent the type of hazard.

DANGER indicates a hazard which, if not avoided,will result in death or serious injury.

WARNING indicates a hazard which, if not avoided,could result in death or serious injury.

CAUTION indicates a hazard which, if not avoided,might result in minor or moderate injury.

CAUTION, when used without the alert symbol,

indicates a situation that could result in damage tothe engine.

The engine exhaust from this product containschemicals known to the State of California to causecancer, birth defects, or other reproductive harm.

WARNING

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WARNING

Gasoline and its vapors are extremely flammableand explosive.

Fire or explosion can cause severe burns or death.

WHEN ADDING FUEL

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

• Fill fuel tank outdoors or in well-ventilated area.

• Do not overfill fuel tank. Fill tank to approximately1 inch below lowest portion of neck to allow forfuel expansion.

• Keep gasoline away from sparks, open flames, pilotlights, 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 aircleaner are in place.

• Do not crank engine with spark plug removed.

• If fuel spills, wait until it evaporates before startingengine.

• 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 whichcauses gasoline to spill.

• Do not choke carburetor to stop engine.

WHEN TRANSPORTING EQUIPMENT

• Transport with fuel tank EMPTY or with fuel shut-offvalve OFF.

WHEN STORING GASOLINE OR EQUIPMENT WITHFUEL IN TANK

• Store away from furnaces, stoves, water heaters orother appliances that have pilot light or other ignitionsource because they can ignite gasoline vapors.

Starting engine creates sparking.

Sparking can ignite nearby flammable gases.

Explosion and fire could result.

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

• Do not use pressurized starting fluids becausevapors are flammable.

WARNING

Unintentional sparking can result in fire or electricshock.

Unintentional start-up can result in entanglement,traumatic amputation, or laceration.

BEFORE PERFORMING ADJUSTMENTS OR RE-PAIRS

• Disconnect spark plug wire and keep it away fromspark plug.

• Disconnect battery at negative terminal (onlyengines with electric start).

WHEN TESTING FOR SPARK

• Use approved spark plug tester.

• Do not check for spark with spark plug removed.

WARNING

Engines give off carbon monoxide, an odorless,colorless, poison gas.

Breathing carbon monoxide can cause nausea,fainting or death.

• Start and run engine outdoors.

• Do not start or run engine in enclosed area, even ifdoors or windows are open.

WARNING

Running engines produce heat. Engine parts,especially muffler, become extremely hot.

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 cool beforetouching.

• 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 4442 ofthe California Public Resources Code). Otherstates may have similar laws. Federal laws apply onfederal land.

WARNING

Rotating parts can contact or entangle hands, feet,hair, clothing, or accessories.

Traumatic amputation or severe laceration canresult.

• 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, danglingdrawstrings or items that could become caught.

WARNING

Rapid retraction of starter cord (kickback) will pull handand arm toward engine faster than you can let go.

Broken bones, fractures, bruises or sprains couldresult.

• 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, butnot limited to, blades, impellors, pulleys, sprockets,etc., must be securely attached.

WARNING

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Oil Recommendations (see fig. �)

Engine shipped from Briggs & Stratton without oil.Before starting engine, fill with oil. Do not over-fill.

Use a high quality detergent oil classified �For ServiceSF, SG, SH, SJ" or higher such as Briggs & Stratton30W, Part Number 100005. Use no special additiveswith recommended oils. Do not mix oil with gasoline.Choose the SAE viscosity grade of oil from this chartthat matches the starting temperature anticipatedbefore the next oil change.

Note: Synthetic oil meeting ILSACGF-2, API certification mark and API ser-vice symbol (shown at left) with �SJ/CFENERGY CONSERVING" or higher, is anacceptable oil at all temperatures. Use ofsynthetic oil does not alter required oilchange intervals.

* Air cooled engines run hotter than automotiveengines. The use of non-synthetic multi-viscosityoils (5W-30, 10W-30, etc.)in temperatures above40° F (4° C) will result in higher than normal oilconsumption. When using a multi-viscosity oil,check oil level more frequently.

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

Check oil level. (Oil capacity is about 20 oz. or 0.6 liter.)

Place engine level and clean around oil fill �.

Remove dipstick, wipe with clean cloth �, insert andtighten down again. Remove dipstick and check oillevel. Oil should be at FULL mark �.If oil is required, add slowly. Tighten dipstick firmlybefore starting engine.Do not overfill. Overfilling with oil may cause:

1. Smoking,2. Hard starting,3. Spark plug fouling,4. Oil saturation of air filter

Fuel RecommendationsUse clean, fresh, lead-free, regular gasoline with aminimum of 77 octane. Leaded gasoline may be used ifit is commercially available and if unleaded is unavail-able. Purchase fuel in quantity that can be used within30 days. See Storage.In U.S.A. leaded gasoline may not be used. Somefuels, called oxygenated or reformulated gasolines, aregasolines blended with alcohols or ethers. Excessiveamounts of these blends can damage the fuel systemor cause performance problems. If any undesirableoperating symptoms occur, use gasoline with a lowerpercentage of alcohol or ether.This engine is certified to operate on gasoline. ExhaustEmission Control System: EM (Engine Modifications).Do not use gasoline which contains Methanol. Do notmix oil with gasoline.For engine protection, we recommend using Briggs &Stratton Fuel Stabilizer available from an AuthorizedBriggs & Stratton Service Dealer.

Check fuel level.

Before refueling, allowengine to cool 2 minutes.

Clean around fuel fill before removing cap to refuel. Filltank to approximately 1 inch below lowest portion ofneck to allow for fuel expansion. Be careful not tooverfill.

Starting (see fig. �)

ALWAYS KEEP HANDS AND FEETCLEAR OF EQUIPMENT MOVING PARTS.

Do not use a pressurized startingfluid. Vapors are flammable.

Start, store and fuel equipment in level position.

Check oil level.

Start engine first time

1. Move throttle control to FAST position.2. Push primer bulb � firmly 5 times.

Close safety brake control handle �,if equipped. Grasp rope handle andpull slowly until resistance is felt. Thenpull cord rapidly to overcome com-

pression, prevent kickback and start engine. Repeatif necessary. When engine starts, operate in FASTposition.

3. If engine does not start after 3 pulls, push primerbulb 3 times and pull starter again.

Start engine thereafter

1. Move throttle control to FAST position.2. Push primer bulb � firmly 3 times.

Close safety brake control handle �,if equipped. Grasp rope handle andpull slowly until resistance is felt. Thenpull cord rapidly to overcome com-

pression, prevent kickback and start engine. Repeatif necessary. When engine starts, operate in FASTposition.

Note: If engine stopped because it ran out of fuel, refuelengine and push primer bulb 3 times. Priming is usuallyunnecessary when restarting a warm engine. However,cool weather may require priming to be repeated.

Stopping (see fig. �)

Release safety brake control handle OR move throttlecontrol to STOP.

Maintenance (see figs. ���)

Also, see Maintenance Schedule, next page. Followthe hourly or calendar intervals, whichever occur first.More frequent service is required when operating inadverse conditions.

To prevent acci-dental starting, re-move spark plugwire � and groundit before servicing.

CAUTION:If engine must be tipped to transport equip-ment or to inspect or remove grass, keep spark plugside of engine up. �

Transporting or tipping engine spark plug down may cause:

1. Smoking,2. Hard starting,3. Spark plug fouling,4. Oil saturation of air filter.

Oil service (see fig. �)

Check oil level regularly.

Be sure correct oil level is maintained. Check every 5hours or daily, before starting engine. See oil fillingprocedure, Oil Recommendations.

Change oil.

Change oil after first 5 hours of operation. Change oil whileengine is warm. Refill with new oil of recommended SAE

viscosity grade. (see fig. �)

Before tipping engine or equipment todrain oil, drain fuel from tank byrunning engine until fuel tank is empty.

If draining oil from top of engine, keep spark plug �side up.

By removing drain plug � with a ratchet and squareextension �, oil can be drained from engine bottom.

Air cleaner service (see fig. �)

Replace Oil-Foam® element if very dirty or damaged.

• Remove screw.

• Carefully remove air cleaner to prevent debris from fallinginto carburetor.

• Take air cleaner apart and clean all parts. Wash

Oil-Foam® element � in liquid detergent and water.Squeeze dry in a clean cloth. Saturate Oil-Foam®element in engine oil and squeeze in a clean cloth toremove excess oil.

• Install Oil-Foam® element and cup, if equipped, in body.

Note: On Style 2 air cleaner �, install element so lip extendsover edge of body to form protective seal when cover isassembled.

• Install air cleaner securely on carburetor with screw.

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Maintenance Cont’d

Spark plug service (see fig. )

DO NOT check for spark withspark plug removed. Useonly Briggs & Stratton SparkTester �, to check for spark.

DO NOT crank engine with spark plug removed. Ifengine is flooded, place throttle in FAST and crank untilengine starts.

Spark plug gap � should be .76 mm or 0.030 in.Replace spark plug every 100 hours or every season,whichever occurs first. Spark plug wrench is availablefrom any Authorized Briggs & Stratton Service Dealer.Note: In some areas, local law requires using a resistorspark plug to suppress ignition signals. If this enginewas originally equipped with resistor spark plug, usesame type of spark plug for replacement.

Keep engine clean (see fig. �)

Periodically remove grass and chaff build-up fromengine. Clean finger guard �. Do not spray engine withwater to clean because water could contaminate fuel.Clean with a brush or compressed air.

Accumulation of debris around muf-fler � could cause a fire. Inspect andclean before every use.

If muffler is equipped with spark arrester screen �,remove spark arrester screen for cleaning and inspec-tion. Replace if damaged.Clean cooling system. Grass or chaff may clog engine’sair cooling system, especially after prolonged servicecutting tall, dry grass. Internal cooling fins and surfacesmay require cleaning to prevent overheating andengine damage.

Remove 3 screws � and lift blower housing to cleanareas within heavy line �.

Do not loosen 2 band brake bracket screws �.

Do not bend or remove flywheel guard �.

Maintenance ScheduleFollow the hourly or calendar intervals, whicheveroccur first. More frequent service is required whenoperating in adverse conditions noted below.

First 5 Hours

Change oil

Every 5 hours or daily

Check oil level

Clean finger guard

Clean around muffler

Every 25 hours or every season

Change oil if operating under heavy load orhigh ambient temperature

Service air cleaner Oil-Foam® element*

Every 50 hours or every season

Change oil

Inspect spark arrester, if equipped.

Every 100 hours or every season

Clean cooling system*

Replace spark plug

* Clean more often under dusty conditions,orwhen airborne debris is present or afterprolonged operation cutting tall, dry grass.

Partial List of Genuine Briggs & Stratton Parts

Briggs & Stratton (or equivalent)

Part Part No.Oil (20 oz.) 100005. . . . . . . . . . . . . . . . . . . . . . . . Oil pump kit (uses standard electric drill 5056. . . . . . to remove oil from engine quickly)Fuel stabilizer (1 oz., 30 ml single use pouch) 992030Fuel stabilizer (4.2 oz., 125 ml bottle) 999005E (5041)Oil-Foam® air cleaner element 698369. . . . . . . . . Oil-Foam® 272235 (5047). . . . . . . . . . . . . . . . . . . air cleaner element used with cupResistor spark plug 802592E. . . . . . . . . . . . . . . . . Standard spark plug 492167E. . . . . . . . . . . . . . . . Long life platinum spark plug 992041 (5062). . . . . . (used on most L-head engines)Spark tester 19368. . . . . . . . . . . . . . . . . . . . . . . . Spark plug wrench 89838 (5023). . . . . . . . . . . . . Spark arrester 398067. . . . . . . . . . . . . . . . . . . . . .

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StorageEngines stored over 30 days need to be protected ordrained of fuel to prevent gum from forming in fuelsystem or on essential carburetor parts.For engine protection, we recommend use of Briggs &Stratton Fuel Stabilizer available from an AuthorizedBriggs & Stratton Service Dealer. Mix stabilizer with fuelin fuel tank or storage container. Run engine for a shorttime to circulate stabilizer through carburetor. Engineand fuel can be stored up to 24 months.Note: If stabilizer is not used or if engine is operating ongasoline containing alcohol, e.g. gasohol, remove all fuelfrom tank and run engine until it stops from lack of fuel.

1. Change oil. See Oil service. (see figs. ��)2. Remove spark plug and pour about 15 ml (1/2 oz)

of engine oil into cylinder. Replace spark plug andcrank slowly to distribute oil.

3. Clean grass and chaff from cylinder and cylinderhead fins, under finger guard and under, aroundand behind muffler/converter.

4. Store in a clean and dry area, but NOT near astove, furnace or water heater which uses a pilotlight or any device that can create a spark.

ServiceSee an Authorized Briggs & Stratton Service Dealer.Each one carries a stock of Genuine Briggs & StrattonParts and is equipped with special service tools.Trained mechanics assure expert repair service on allBriggs & Stratton engines. Only dealers advertising as�Authorized Briggs & Stratton" are required to meetBriggs & Stratton standards.When you purchase equipment pow-ered by a Briggs & Stratton engine, youare assured of highly skilled, reliableservice at more than 30,000 AuthorizedService Dealers worldwide, includingmore than 6,000 Master Service Techni-cians. Look for these signs whereverBriggs & Stratton service is offered.

You may locate your nearest Authorized Briggs & StrattonService Dealer in our dealer locator map on our web site

www.briggsandstratton.com or in the �YellowPages™" directory under �Engines, Gasoline"or �Gasoline Engines," or �Lawn Mowers" orsimilar category.™

Note: Walking fingers logo and �Yellow Pages" areregistered trademarks in various jurisdictions.An illustrated shop manual includes �Theories ofOperation," common specifications and detailedinformation covering adjustment, tune-up and repair ofBriggs & Stratton L-head, single cylinder, 4 cycleengines. Order P/N 270962 from an Authorized Briggs& Stratton Service Dealer.Insist on Genuine Briggs & Stratton replacement �partswith our logo on the box and/or part. Non-original partsmay not perform as well and may void your warranty.

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BRIGGS & STRATTON ENGINE OWNER WARRANTY POLICY

Effective September 1, 2006

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 forand is subject to the time periods and conditions stated below. For warranty service, find the nearest Authorized Service Dealer in our dealer locatormap at 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 EXTENT EXCLU-SION IS PERMITTED BY LAW. Some states or countries do not allow limitations on how long an implied warranty lasts, and some states or countriesdo not allow the exclusion or limitation of incidental or consequential damages, so the above limitation and exclusion may not apply to you. Thiswarranty gives you specific legal rights and you may also have other rights which vary from state to state and country to country.

WARRANTY TERMS **

Brand / Product Type Consumer Use Commercial UseVanguard� 2 years 2 yearsExtended Life Series� 2 years 1 yearI / C�, Intek I / C�, Intek Pro� 2 years 180 daysKerosene Fuel Operated Engines 1 year 90 daysAll Other Briggs & Stratton Engines 2 years 90 days

** Engines used on Home Standby Generator applications are warranted under consumer use only. Thiswarranty does not apply to engines on equipment used for prime power in place of a utility. Engines used incompetitive racing or on commercial or rental tracks are not warranted.

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 OFPURCHASE RECEIPT. IF YOU DO NOT PROVIDE PROOF OF THE INITIAL PURCHASE DATE AT THE TIME WARRANTY SERVICE ISREQUESTED, THE MANUFACTURING DATE OF THE PRODUCT WILL BE USED TO DETERMINE THE WARRANTY PERIOD.

ABOUT YOUR ENGINE WARRANTY

Briggs & Stratton welcomes warranty repair and apologizes toyou for being inconvenienced. Any Authorized Service Dealermay perform warranty repairs. Most warranty repairs are han-dled routinely, but sometimes requests for warranty servicemay not be appropriate. For example, warranty would not applyif engine damage occurred because of misuse, lack of routinemaintenance, shipping, handling, warehousing or improperinstallation. Similarly, warranty is void if the serial number of theengine has been removed or the engine has been altered ormodified.If a customer differs with the decision of the Service Dealer, aninvestigation will be made to determine whether the warrantyapplies. Ask the Service Dealer to submit all supporting facts tohis Distributor or the Factory for review. If the Distributor or theFactory decides that the claim is justified, the customer will befully reimbursed for those items that are defective. To avoid mis-understanding which might occur between the customer andthe Dealer, listed below are some of the causes of engine failurethat the warranty does not cover.Normal wear:Engines, like all mechanical devices, need periodic parts serviceand replacement to perform well. Warranty will not cover repairwhen normal use has exhausted the life of a part or an engine.Improper maintenance:The life of an engine depends upon the conditions under which itoperates, and the care it receives. Some applications, such astillers, pumps and rotary mowers, are very often used in dusty ordirty conditions, which can cause what appears to be prematurewear. Such wear, when caused by dirt, dust, spark plug cleaning

grit, or other abrasive material that has entered the engine be-cause of improper maintenance, is not covered by warranty.This warranty covers engine related defective material and/or workmanship only, and not replacement or refund of theequipment to which the engine may be mounted. Nor doesthe warranty extend to repairs required because of:1. PROBLEMS CAUSED BY PARTS THAT ARE NOT

ORIGINAL BRIGGS & STRATTON PARTS.2. Equipment controls or installations that prevent starting,

cause unsatisfactory engine performance, or shorten en-gine life. (Contact equipment manufacturer.)

3. Leaking carburetors, clogged fuel pipes, sticking valves,or other damage, caused by using contaminated or stalefuel. (Use clean, fresh, lead-free gasoline and Briggs &Stratton Fuel Stabilizer, Part No. 5041.)

4. Parts which are scored or broken because an engine wasoperated with insufficient or contaminated lubricating oil,or an incorrect grade of lubricating oil (check oil level dailyor after every 8 hours of operation. Refill when necessaryand change at recommended intervals.) OIL GARD maynot shut down running engine. Engine damage may occurif oil level is not properly maintained. Read Operating &Maintenance Instructions.

5. Repair or adjustment of associated parts or assembliessuch as clutches, transmissions, remote controls, etc.,which are not manufactured by Briggs & Stratton.

6. Damage or wear to parts caused by dirt, which enteredthe engine because of improper air cleaner maintenance,re-assembly, or use of a non-original air cleaner elementor cartridge. (At recommended intervals, clean and re-oil

the Oil-Foam element or the foam pre-cleaner, andreplace the cartridge.) Read Operating & MaintenanceInstructions.

7. Parts damaged by over-speeding, or overheating causedby grass, debris, or dirt, which plugs or clogs the coolingfins, or flywheel area, or damage caused by operating theengine in a confined area without sufficient ventilation.(Clean fins on the cylinder, cylinder head and flywheel atrecommended intervals.) Read Operating & MaintenanceInstructions.

8. Engine or equipment parts broken by excessive vibrationcaused by a loose engine mounting, loose cutter blades,unbalanced blades or loose or unbalanced impellers, im-proper attachment of equipment to engine crankshaft,over-speeding or other abuse in operation.

9. A bent or broken crankshaft, caused by striking a solid ob-ject with the cutter blade of a rotary lawn mower, or exces-sive v-belt tightness.

10. Routine tune-up or adjustment of the engine.11. Engine or engine component failure, i.e., combustion

chamber, valves, valve seats, valve guides, or burnedstarter motor windings, caused by the use of alternatefuels such as, liquified petroleum, natural gas, alteredgasolines, etc.

Warranty is available only through service dealers whichhave been authorized by Briggs & Stratton Corporation.your nearest Authorized Service Dealer is listed in the �Yel-low Pages™" of your telephone directory under �Engines,Gasoline" or �Gasoline Engines," �Lawn Mowers," or simi-lar category.

Briggs & Stratton Engines Are Made Under One Or More Of The Following Patents: Design D-247,177 (Other Patents Pending)6,691,6836,647,9426,622,6836,615,7876,617,7256,603,2276,595,8976,595,1766,584,9646,557,8336,542,074

6,520,1416,495,2676,494,1756,472,7906,460,5026,456,5156,382,1666,369,5326,356,0036,349,6886,347,614

6,325,0366,311,6636,284,1236,263,8526,260,5296,242,8286,239,7096,237,5556,230,6786,213,0836,202,616

6,145,4876,142,2576,135,4266,116,2126,105,5486,347,6146,082,3236,077,0636,064,0276,040,7676,014,808

6,012,4205,992,3675,904,1245,894,7155,887,6785,852,9515,843,3455,823,1535,819,5135,813,3845,809,958

5,803,0355,765,7135,732,5555,645,0255,642,7015,6283525,619,8455,606,9485,606,8515,605,1305,497,679

5,548,9555,546,9015,445,0145,503,1255,501,2035,497,6795,320,7955,301,6435,271,3635,269,7135,265,700

5,243,8785,235,9435,234,0385,228,4875,197,4265,197,4255,197,4225,191,8645,188,0695,186,1425,150,674

5,138,9965,086,8905,070,8295,058,5445,040,6445,009,2084,996,9564,977,8794,977,8774,971,2194,895,119

4,875,4484,819,5934,720,6384,719,6824,633,5564,630,4984,522,0804,520,2884,512,4994,453,5074,430,984

D 476,629D 457,891D 368,187D 375,963D 309,457D 372,871D 361,771D 356,951D 309,457D 308,872D 308,871

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(This page applicable in the U.S.A. and Canada only.)

Briggs & Stratton Corporation (B&S), the California Air Resources Board (CARB) and the United States Environmental Protection Agency (U.S. EPA)Emissions Control System Warranty Statement (Owner’s Defect Warranty Rights and Obligations)

The California Air Resources Board (CARB), U.S. EPA and B&S are pleased to explain theEmissions Control System Warranty on your small off-road engine (SORE). In California, newsmall off-road engines model year 2006 and later must be designed, built and equipped to meetthe State’s stringent anti-smog standards.

Elsewhere in the United States, new non-road, spark-ignition engines certified for model year1997 and later must meet similar standards set forth by the U.S. EPA. B&S must warrant the

emissions control system on your engine for the periods of time listed below, provided there hasbeen no abuse, neglect or improper maintenance of your small off-road engine.Your emissions control system includes parts such as the carburetor, air cleaner, ignition sys-tem, fuel line, muffler and catalytic converter. Also included may be connectors and other emis-sions related assemblies.Where a warrantable condition exists, B&S will repair your small off-road engine at no cost to youincluding diagnosis, parts and labor.

Briggs & Stratton Emissions Control Defects Warranty CoverageSmall off-road engines are warranted relative to emissions control parts defects for a period of two years, subject to provisions set forth below. If any covered part on your engine is defective, the part willbe repaired or replaced by B&S.

Owner’s Warranty ResponsibilitiesAs the small off-road engine owner, you are responsible for the performance of the requiredmaintenance listed in your Operating and Maintenance Instructions. B&S recommends that youretain all your receipts covering maintenance on your small off-road engine, but B&S cannotdeny warranty solely for the lack of receipts or for your failure to ensure the performance of allscheduled maintenance.

As the small off-road engine owner, you should however be aware that B&S may deny you war-ranty coverage if your small off-road engine or a part has failed due to abuse, neglect, impropermaintenance or unapproved modifications.

You are responsible for presenting your small off-road engine to an Authorized B&S ServiceDealer as soon as a problem exists.The undisputed warranty repairs should be completed in a reasonable amount of time, not toexceed 30 days.If you have any questions regarding your warranty rights and responsibilities, you should contacta B&S Service Representative at 1-414-259-5262.The emissions warranty is a defects warranty. Defects are judged on normal engine perfor-mance. The warranty is not related to an in-use emissions test.

Briggs & Stratton Emissions Control Defects Warranty Provisions

The following are specific provisions relative to your Emissions Control Defects Warranty Coverage. It is in addition to the B&S engine warranty for non-regulated engines found in the Operating andMaintenance Instructions.

1. Warranted Parts

Coverage under this warranty extends only to the parts listed below (the emissions controlsystems parts) to the extent these parts were present on the engine purchased.

a. Fuel Metering System

• Cold start enrichment system

• Carburetor and internal parts

• Fuel pump

• Fuel line, fuel line fittings, clamps

• Fuel tank, cap and tether

• Carbon canister

b. Air Induction System

• Air cleaner

• Intake manifold

• Purge and vent line

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 valves and switches

• Connectors and assemblies

2. Length of Coverage

B&S warrants to the initial owner and each subsequent purchaser that the Warranted Partsshall be free from defects in materials and workmanship which caused the failure of the War-ranted Parts for a period of two years from the date the engine is delivered to a retail pur-chaser.

3. No Charge

Repair or replacement of any Warranted Part will be performed at no charge to the owner,including diagnostic labor which leads to the determination that a Warranted Part is defec-tive, if the diagnostic work is performed at an Authorized B&S Service Dealer. For emissionswarranty service contact your nearest Authorized B&S Service Dealer as listed in the �Yel-low Pages" under �Engines, Gasoline," �Gasoline Engines," �Lawn Mowers," or similar cate-gory.

4. Claims and Coverage Exclusions

Warranty claims shall be filed in accordance with the provisions of the B&S Engine WarrantyPolicy. Warranty coverage shall be excluded for failures of Warranted Parts which are notoriginal B&S parts or because of abuse, neglect or improper maintenance as set forth in theB&S Engine Warranty Policy. B&S is not liable to cover failures of Warranted Parts causedby the use of add-on, non-original, or modified parts.

5. Maintenance

Any Warranted Part which is not scheduled for replacement as required maintenance orwhich is scheduled only for regular inspection to the effect of �repair or replace as neces-sary" shall be warranted as to defects for the warranty period. Any Warranted Part which isscheduled for replacement as required maintenance shall be warranted as to defects onlyfor the period of time up to the first scheduled replacement for that part. Any replacementpart that is equivalent in performance and durability may be used in the performance of anymaintenance or repairs. The owner is responsible for the performance of all required main-tenance, as defined in the B&S Operating and Maintenance Instructions.

6. Consequential Coverage

Coverage hereunder shall extend to the failure of any engine components caused by thefailure of any Warranted Part still under warranty.

Look For Relevant Emission Durability Period and AirIndex Information On Your Engine Emission Label

Engines that are certified to meet the California Air Resources Board (CARB) Tier 2 EmissionStandards must display information regarding the Emissions Durability Period and the Air Index.Briggs & Stratton makes this information available to the consumer on our emission labels.The Emission Durability Period describes the number of hours of actual running time for which theengine is certified to be emission compliant, assuming proper maintenance in accordance with theOperating & Maintenance Instructions. The following categories are used:Moderate: Engine is certified to be emission compliant for 125 hours of actual engine running time.Intermediate: Engine is certified to be emission compliant for 250 hours of actual engine running time.Extended: Engine is certified to be emission compliant for 500 hours of actual engine running time.