Register / log-in to add to your Hammerwall Collection.
Manual Location
The Search Results for the Search Section to the left will appear here.
Page: 1
Before starting this engine , read and understand Operator / Owner Manual . Failure to follow instructions this in this manual could result in serious injury or death . � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 28N700 , 287700 , 28P700 , 28Q700 , 28S700 , 28U700 , 310700 , 311700 , 312700 , 313700 ModeTlype Code For future reference , write yourengine Model / Type / Code here . For future reference , write yourengine Date of Purchase here . Table of Contents Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . 8 . . In the Interest of Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 2 . . Service , Storage & Specifications . . . . . . . . . . . . . . . . . 9 . Oil & Fuel Recommendations . . . . . . . . . . . . . . . . . . . . . 3 . Emission System Warranty . . . . . . . . . . . . . . . . . . . . . . 1.0 Starting & Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 . . About Engine Warranty . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 . Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 . . . Engine Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 . Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 . . . Briggs & Stratton Corporation Milwaukee , Wisconsin 53201 FORM NO . 273683 - 7 / 98 www.briggsandstratton.com PRINTED IN U.S.A .  Copyright 1998 by Briggs & Stratton Corporation
Page: 2
Maintenance , replacement or repair of the emission control devices and systems may be performed by any nonroad en - gine 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 . In the Interest of Safety This safety alert symbol indicates that this message You are not ready to operate this engine if you involves personal safety . Words danger , warning have not read and understood the following and caution indicate degree of hazard . Death , safety items . Read this entire owner’s manual and personal injury and / or property damage may occur the operating instructions of the equipment this engine powers . unless instructions are followed carefully . The Briggs & Stratton engine you bought with your equipment is made of the finest material in a state - of - the - art manufacturing facility . Please understand that Briggs & Stratton sells engines to original equipment manufacturers . It also sells to otherns tihe distribution chain who may sell to the ultimate consumer , an equipment manufacturer , another distributor or a dealer . As a rlet , su Briggs & Stratton does not necessarily know the application on which the engine will be placed . For that reason , you should carefully read and understand the operating instructions of the equipment on which your engine is placed before you operate it . You should also understand that there are equipment applications for which Briggs & Stratton does not approve the use of its engines . Briggs & Stratton engines are not to be used on vehicles with less than 4 wheels . They include motor bikes , aircraft products and All Terrain Vehicles . Moreover , Briggs & Stratton does not approve of its engines being used in competitive eve.nts F0R THAT REASON , BRIGGS & STRATTON ENGINES ARE NOT AUTHORIZED FOR ANY OF THESE APPLICATIONS . Fail - ure to follow this warning could result in death , serious injury ( including paralysis ) or property damage . DO NOT check for spark with spark plug removed . ( Use an DO NOT run engine in an enclosed area . ( Exhaust gases contain carbon monoxide , an approved tester . ) odorless and deadly poison . ) DO NOT crank engine with spark plug removed . ( If engine is flooded , place throttle in FAST and crank until engine starts . ) DO NOT remove fuel tank cap nor fill fuel tank while DO NOT strike flywheel with a hammer or hard object as this engine is hot or running . DONOT refuel indoors or in may cause flywheel to shatter in operation . ( To remove flywheel , an unventilated area . ( Allow engine to cool 2 min - use Briggs & Stratton approved tools only . ) utes before refueling . ) DO NOT operate engine without a muffler . ( Inspect periodically DO NOT place hands or feet near moving or rotating parts . and replace if worn or leaking . If engine is equipped with muf - DO NOT store , spill , or use gasoline near an open flame , nor fler deflector , inspect periodically and replace if necessary . Re - near an appliance like a stove , furnace , or water heater that placement parts must be same as on original equipment . ) uses a pilot light or can create a spark . DO NOT operate engine with an accumulation of grass , DO NOT refuel indoors or in an unventilated area . leaves or other combustible material in muffler area . DO NOT operate or tip engine / equipment at such a severe DO NOT use this engine on any forest covered , brush cov - angle that causes gasoline spillage . ered , or grass covered unimproved land unless a spark ar - DO NOT operate engine if gasoline is spilled or when smell of rester is installed on muffler . The spark arrester must be main - gasoline is present or other explosive conditions exist . ( Move tained in working order by the owner and / or operator . In the equipment away from spill and avoid any ignition until gasoline State of California the above is required by law ( Section 4442 has evaporated . ) of the California Public Resources Code ) . Other states may DO NOT transport engine with fuel in tank or fuel shut - off have similar laws . Federal laws apply on federal lands . valve open . DO NOT touch hot muffler , cylinder , or fins which can cause DO NOT choke carburetor to stop engine , especially in an en - burns . closed vehicle . ( Whenever possible , gradually reduce engine DO NOT start engine with air cleaner or air cleaner cover re - speed before stopping . ) moved ( or cover over carburetor air intake , if Sno / Gard engine ) . DO NOT tamper with governor springs , links or other parts to DO NOT attempt to start engine with cutting blade loose or re - increase engine speed . ( Run engine at speed set for equipment moved . ( Blade must be tight , otherwise a kickback may occur . ) manufacturer . ) leaks . Replace if necessary . ✔ PULL starter cord slowly until resistance is felt . Then pull cord rapidly to avoid kickback and prevent hand or arm injury . ✔ Use only Genuine Briggs & Stratton Parts or their equivalent . The use of replacement parts which are ✔ PREVENT ACCIDENTAL STARTING by removing spark not of equivalent quality may damage the engine . plug wire from spark plug when servicing engine or equip - ment . Disconnect negative wire from battery terminal if equipped with electric starting system . � � � � � � � � ✔ REMOVE blower housing periodically and clean engine . The engine exhaust from this product Keep cylinder fins and governor parts free of dirt , grass contains chemicals known to the State and other debris which can affect engine speed . of California to cause cancer , birth ✔ USE fresh gasoline . Stale fuel can gum carburetor and defects , or other reproductive harm . cause leakage . ✔ CHECK fuel lines and fittings frequently for cracks or International Safety Alert - Read Fuel On Off Stop Fuel Choke Owner’s Manual Shutoff Symbols In the USA and Canada , a 24 hour hot line , 1 - 800 - 233 - 3723 , has a menu of pre - recorded messages offering you engine maintenance information . 2
Page: 3
Oil & Fuel Recommendations Oil Fuel This engine is shipped from Briggs & Stratton withoutoil . Use clean , fresh , regular unleaded gasoline with a minimum Before starting engine , check oil level as shown below . of 85 octane . Do not mix oil with gasoline . Fresh fuel prevents gum from forming in fuel system or on essential carburetor Change and add oil according to chart below . Do not over - fill . parts . Purchase fuel in quantity that can be used within 30 Use a high quality detergent oil classified “ For Service SF , days . In countries other than the U.S.A . , leaded gasoline may SG , SH , � such as Briggs & Stratton “ warranty certified � SAE be used if commercially available and unleaded is unavailable . 30 oil , Part No . 100005 . Use no special additives with recom - We recommend the use of Briggs & Stratton Gasoline Additive . mended oils . Do not mix oil with gasoline . ( See your Authorized Briggs & Stratton Service Dealer for SAE Viscosity Grades Part No . 5041 or the single - use pouch . ) See storage instruc - tions , on page 9 . * * Note : Some fuels , called oxygenated or reformulated * gasolines , are gasolines blended with alcohols or ethers . Excessive amounts of these blends can damage the fuel system or cause performance problems . Do not use gasoline 20 40 60 80 100 32 - 20 0 ° F which contains Methanol . If any undesirable operating ° C - 30 - 20 - 10 0 10 20 30 40 symptoms occur , use gasoline with a lower percentage of STARTING TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE alcohol or ether . * Air cooled engines run hotter than automotive engines . The use of Do not over - fill fuel tank . multi - viscosity oil such as ( 10W - 30 , etc . ) in ambient temperatures Allow space for fuel expansion . above 40 ° F ( 4 ° C ) will result in higher than normal oil consumption . If multi - viscosity oil is used , check the oil level more frequently to prevent any possible engine damage due to lack of lubrication . * * Use of SAE 30 oil below 40 ° F ( 4 ° C ) will result in hard starting and possible engine damage due to inadequate lubrication . Check oil level before starting engine . 4 3 Add oil as shown below . Oil capacity is about 1 - 1 / 2 quarts ( 48 ounces or 1.4 liter ) . Oil capacity is about 1 - 1 / 2 quarts ( 48 ounces or 1.4 liters ) if with oil filter . engine is not equipped 2 Oil capacity is about 1 - 3 / 4 quarts ( 56 ounces or 1.7 liters ) if engine is equipped with oil filter . After filling with or changing oil , start and run engine at idle for 30 seconds . Shut engine off . Wait 30 seconds and check oil level . Add oil , if required , to bring level toFull mark on dipstick . 1 . Oil drain 2 . Oil fill / Dipstick 3 . Rotating screen 5 4 . Blower housing 6 1 5 . Muffler 6 . 12V electric starter 12 7 Place engine level . Remove dipstick . Tighten dipstick . Clean around oil fill . Wipe with clean cloth . Remove & check . 11 7 . Air cleaner 8 9 8 . In - line fuel filter , if equipped 9 . Carburetor 10 10 . Oil filter , if equipped 11 . Spark plug wire 12 . Engine Model Type Code Oil level should If oil is required , add Tighten dipstick be - xxxxxxxx xxxxxxxx mark . be at FULL slowly . Recheck level . fore starting engine . In the USA and Canada , a 24 hour hot line , 1 - 800 - 233 - 3723 , has a menu of pre - recorded messages offering you engine maintenance information . 3
Page: 4
Starting & Stopping Choke operation / engine warm - up Start engine This engine is a low emissions engine which operates differently Always keep hands and feet clear of mower blade or from previously built engines . It is designed for maximum other rotating machinery . performance and life if operated with the choke fully open ( in Electric starter RUN ) and throttle fully open ( in FAST ) . To open the choke fully requires an engine warm - up period of several seconds to Turn key to START or press button . Repeat if necessary with several minutes , depending on the temperature . throttle control in FAST position . Operate engine in FAST After starting engine , first open the choke ( toward RUN ) until position . the engine just begins to run smoothly . Then open the choke in Note : If equipment manufacturer has supplied battery , charge it small steps , allowing the engine to accept small changes in before trying to start engine , as equipment manufacturer recom - speed and load , until the choke is fully open ( in RUN ) . mends . Use short starting cycles ( 15 secs . per min . ) to prolong During engine warm - up , the equipment can be operated . starter life . Extended cranking can damage starter motor . To obtain best starting results PRESS Store and fuel lawn mower in level position . BUTTON Start lawn mower on hard surface or over previously cut grass . Do not use a pressurized starting fluid . Starting fluid is flammable . Severe engine damage or fire may occur . Periodically remove grass build - up under mower Typical electric starter deck . Remove spark plug wire before removing grass . Rewind starter ( auxiliary ) , if equipped When tipping lawn mower to remove grass , keep spark plug side of engine up . If your engine is equipped with an auxiliary rewind A warm engine requires less choking than a cold engine . starter , grasp rope handle as illustrated and pull slowly until Starting in cold weather : resistance is felt . Then pull cord Use the correct oil for the starting temperature expected . rapidly to overcome compres - De - clutch all possible external loads . sion , prevent kickback and start engine . Repeat if necessary with Set speed control at part throttle position . choke off and throttle control in A warm battery has more starting capacity than a cold battery . FAST position . Operate engine Rewind starter Do not use gasoline left over from summer . Use fresh winter in FAST position . grade gasoline which has higher volatility to improve starting . Stop engine Do not move choke control to CHOKE position to stop engine . Before starting engine Backfire or engine damage may occur . Move choke control to CHOKE or START position . Keep throttle control in FAST position . Turn key to OFF . If equipment has separate choke and throttle controls , move Always remove key from switch , if equipped , when equipment throttle control to FAST position . is not in use or left unattended . Note : Choke must fully close . If engine does not start , see control adjustments on page 5 . Typical stop controls Typical choke and throttle controls When engine is transported , close fuel shut - off valve ( if Open fuel shut - off valve , if equipped ) to prevent fuel equipped . leakage . 1 / 4 TURN 1 / 4 TURN Typical fuel shut - off Typical fuel shut - off In the USA and Canada , a 24 hour hot line , 1 - 800 - 233 - 3723 , has a menu of pre - recorded messages offering you engine maintenance information . 4
Page: 5
Adjustments Control adjustments Carburetor adjustments The manufacturer of the equipment on which this WIRE engine is installed specifies top speed at which the engine will be operated . DO NOT EXCEED this To prevent accidental starting , remove speed . and ground spark plug wire and dis - connect battery at negative terminal , if Differences in fuel , temperature , altitude or load may require equipped , when adjusting controls . minor carburetor adjustment . Air cleaner and air cleaner cover must be assembled to carburetor before starting engine . Remote choke control : The carburetor on this engine is low emission . It is equipped Move choke control to CHOKE or START position . Choke with an idle mixture valve with a limiter ( see inset ) , which allows valve should be closed . To assure choke valve is closed , some adjustment , and an idle speed adjustment screw . loosen casing clamp screw and pull casing , wire and choke lever in direction of arrow to end of travel . With choke control Adjustments in CHOKE or START position , tighten casing clamp screw . Start engine and warm up approximately 5 minutes before adjusting . With engine running , place throttle control in SLOW CASING CLAMP SCREW position . Rotate carburetor throttle lever against the idle speed screw and hold it . Turn idle speed screw to obtain 1750 rpm . Rotate idle mixture valve full travel clockwise and then counterclockwise . Finally , position idle mixture valve in middle of travel . Check idle speed and re - adjust to 1750 rpm , if necessary . Move throttle control to FAST position . Engine should accelerate smoothly . If it does not , adjust idle mixture valve counterclockwise 1 / 8 turn . Choke control adjustment CARBURETOR THROTTLE LEVER To adjust throttle control : IDLE MIXTURE With throttle control in FAST position , hole in governor control VALVE WITH LIMITER lever ( located just behind governor control plate ) must align with hole in governor control plate , as illustrated below . If it does not , loosen casing clamp screw and then move gover - nor control rack until it does . Tighten casing clamp screw . IDLE SPEED SCREW Check stop switch Move throttle control to STOP position , if equipped . Governor control lever must make good contact with stop switch . Check operation of controls . Readjust if necessary . HOLE IN GOVERNOR STOP GOVERNOR Carburetor adjustments CONTROL SWITCH CONTROL LEVER PLATE GOVERNOR CASING CONTROL CLAMP RACK SCREW Throttle control adjustment In the USA and Canada , a 24 hour hot line , 1 - 800 - 233 - 3723 , has a menu of pre - recorded messages offering you engine maintenance information . 5
Page: 6
See Maintenance Schedule , page 8 . Follow the hourly or calendar intervals , whichever occur first . Note that more frequent service is required when operating in adverse conditions . Maintenance Air cleaner WIRE To prevent accidental starting , remove and ground spark plug wire and dis - connect battery at negative terminal , if COVER KNOB equipped , when adjusting controls . COVER Oil CARTRIDGE KNOB Check oil level regularly . Be sure correct oil level is maintained . Check every 8 hours or CARTRIDGE & daily , before starting engine . See check oil level on page 3 . PRE - CLEANER 5053 Change oil ( Follow Maintenance Schedule . ) STUD Change oil after first 5 hours of operation . Change oil while engine is warm . BASE Remove drain plug and drain oil . Replace and tighten drain plug . Remove dipstick and refill with new oil of recommended Dual element air cleaner grade ( see chart , page 3 ) . Start and run engine at idle for 30seconds . Stop engine . Wait 30 seconds and re - check oil level . If required , add oil to bring level toFULL mark on dipstick . Note : Depending on engine Type Number , this engine may not be equipped with a pre - cleaner . PIPE 7 / 16 � 1 . Remove cover knob and cover . 2 . Remove cartridge knob . Carefully lift pre - cleaner and cartridge from base over stud . HEX 5 / 16 � to prevent debris from entering 3 . Clean base carefully carburetor . TO REMOVE OIL DRAIN PLUG To service pre - cleaner , wash in liquid detergent and water . Typical Squeeze dry in a clean cloth . Saturate in engine oil . Squeeze drain in clean , absorbent cloth to remove all EXCESS oil . Replace if Oil drain Oil fill plugs very dirty or damaged . To service cartridge , clean by tapping gently on a flat surface . Do not oil cartridge . Replace if very dirty or damaged . Change oil filter , if equipped ( Follow Maintenance Schedule . ) Replace oil filter after every 100 hours of operation or every season , whichever occurs first . Before installing new filter , lightly oil filter gasket with fresh , clean engine oil . Screw filter � on by hand until gasket contacts oil filter adapter . Tighten 1 / 2 to 3 / 4 turn more . Start and run engine at idle to check for oil leaks . Recheck oil level and add oil if required . PRE - CLEANER CARTRIDGE 272403 496894 Pre - cleaner Cartridge Note : Do not use petroleum solvents , e.g . , kerosene , which will OIL FILTER P / N SEE PAGE 8 cause the cartridge to deteriorate . Do not use pressurized airto clean cartridge . Pressurized air can damage the cartridge . 4 . Reassemble pre - cleaner on cartridge and place assembly over stud on base . Tighten cartridge knob . Oil filter 5 . Replace cover and tighten cover knob securely . In the USA and Canada , a 24 hour hot line , 1 - 800 - 233 - 3723 , has a menu of pre - recorded messages offering you engine maintenance information . 6
Page: 7
See Maintenance Schedule , page 8 . Follow the hourly or calendar intervals , whichever occur first . Note that more frequent service is required when operating in adverse conditions . Maintenance Grass , chaff or debris may clog the air cooling system , especial - Keep engine and parts clean . ly after prolonged operation cutting tall , dry grass . Remove Do not clean with a forceful spray of water because water blower housing and clean area shown to prevent overheating could contaminate fuel system . and engine damage . Clean more often if necessary . With a brush or cloth , CLEAN CLEAN CLEAN OUT remove grass , chaff or CHAFF AND debris from finger guard DEBRIS or rotating screen daily ( more often if needed ) to prevent engine dam - age caused by over - heating . Rotating screen Finger guard To assure smooth operation , keep gover - nor linkage , springs and controls free of debris . Air cooling system Replace spark plug . Do . 030 � ( 0.76 mm ) not blast clean . Clean by WIRE GAGE CLEAN scraping or wire brushing and washing with a Linkage , springs & controls commercial solvent . Use only Briggs & Strat - If engine muffler is equipped with spark arrester screen , ton Spark Tester , Part No . RESISTOR remove for cleaning and inspection . Replace if damaged or PART NO . 491055 19368 , to check for spark . plugged . See an Authorized Briggs & Stratton Service Dealer Spark plug for correct replacement . Note : In some areas , local law requires using resistor spark plug CLEAN to suppress ignition signals . If this engine was originally equipped with resistor spark plug , use same type for replacement . Replace in - line fuel filter . FILTER Daily or more often , See any Authorized before running en - ARRESTER Briggs & Stratton Dealer gine , clean muffler for correct replacement . area to remove all grass and combus - Drain fuel tank or tible debris . PART NO . 394358 P / N 298090 OR 5018 close fuel shut - off ( WITH FUEL PUMP ) ( WITHOUT FUEL PUMP ) CLEAN valve before re - Muffler and spark arrester In - line fuel filter placing fuel filter . See any Authorized Briggs & Stratton Fill in both sides , clip and return to : 273683 Service Dealer . Insist on Genuine Briggs & Stratton Corporation Briggs & Stratton parts ! Non - original P.O . Box 1144 parts may not perform as well and Milwaukee , WI 53201 - 1144 U.S.A . may void your warranty . � � � � To obtain a complete Parts List of Genuine Briggs & Stratton Parts for your engine , fill in both sides of this � � � � � � � order form carefully . We cannot fill your order without the correct � � � � � � � � � � � � � � � � � � Engine Model / Type / Code . ( Please allow 3 to 4 weeks for delivery . ) Your Engine Model Type Code In the USA and Canada , a 24 hour hot line , 1 - 800 - 233 - 3723 , has a menu of pre - recorded messages offering you engine maintenance information . 7
Page: 8
273683 Maintenance Schedule Follow the hourly or calendar intervals , whichever occur first . More frequent service is required when operating in adverse conditions noted below . Every 8 Hours 25 Hours or 50 Hours or 100 Hours or Maintenance Operation Yearly or Daily Every Season Every Season Every Season Check oil level � � Change oil ♦ Note 1 Replace oil filter , if equipped � Service air cleaner pre - cleaner , if � equipped Note 2 Service air cleaner cartridge , � if not equipped with pre - cleaner Note 2 Service air cleaner cartridge , � if equipped with pre - cleaner Note 2 Inspect spark arrester , � if equipped � Clean cooling system Note 2 Replace spark plug and � fuel filter , if equipped Check valve clearance � ♦ Change oil after first 5 hours , then after every 50 hours or every season . Note 1 : Change oil every 25 hours when operating under heavy load or in high temperatures . Clean more often under dusty conditions or when airborne debris is present . Note 2 : Replace air cleaner parts , if very dirty . Briggs & Stratton Part Numbers of some Briggs & Stratton Part Numbers of some Genuine Briggs & Stratton Parts : Genuine Briggs & Stratton Parts : Briggs & Stratton Part No . Part Briggs & Stratton Part No . Part Air cleaner cartridge . . . . . . . . . . . . . . . . . . . . . . . . . 4.96894 Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . 0 . 0 . 005 or 100028 Air cleaner pre - cleaner . . . . . . . . . . . . . . . . . . . . . . . 2.72403 Oil filter ( 3 - 1 / 2 in . long ) . . . . . . . . . . . . . . . . . . . . . . . 4.91056 Air cleaner cartridge & pre - cleaner . . . . . . . . . . . . . . . 5.053 Oil filter ( 2 - 1 / 4 in . long ) . . . . . . . . . . . . . . . . . . . . . . . 4.92932 Resistor spark plug . . . . . . . . . . . . . . . . . . . . . . . . . . 4.91055 Fuel filter ( with fuel pump ) . . . . . . . . . . . . . . . . . . . . 3 . 94358 Spark plug wrench . . . . . . . . . . . . . . . . . . . . 8.9838 or 5023 Fuel filter ( without fuel pump ) . . . . . . . . . . . . . . . . . . 298090 Spark tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.9.3.68 Gas additive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0.4.1 Genuine Briggs Only Fill in both sides of this order form carefully Payment Method : & Stratton Parts have the Briggs & � Check or money order enclosed payable to Stratton logo ! Briggs & Stratton Corporation in the amount of $ ________ ( U.S . Dollars , please ) � Please charge my � MasterCard � VISA __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ CREDIT CARD NUMBER SIGNATURE ( REQUIRED FOR CREDIT CARD ORDERS EXPIRATION DATE Parts List $ 2.00 Shipping & Handling $ 1.50 Add sales tax if you live in any of the following states : * * Add State Sales Tax Look for Briggs & Stratton logo � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Total � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � stamped on part and / or package ! In the USA and Canada , a 24 hour hot line , 1 - 800 - 233 - 3723 , has a menu of pre - recorded messages offering you engine maintenance information . 8
Page: 9
Service , Storage & Specifications For service Storage instructions See an Authorized Briggs & Stratton Service Dealer . Each Engines stored over 30 days need to be protected or drained one carries a stock of Genuine Briggs & Stratton Parts and is of fuel to prevent gum from forming in fuel system or on equipped with special service tools . Trained mechanics essential carburetor parts . assure expert repair service on all Briggs & Stratton engines . Only dealers advertising as “ Authorized Briggs & Stratton � 1 . For engine protection , we recommend use of are required to meet Briggs & Stratton standards . Briggs & Stratton Gasoline Additive , Part No . When you purchase equipment powered by a 5041 , available from an Authorized Briggs & Briggs & Stratton engine , you are assured of Stratton Service Dealer . Mix Additive with highly skilled , reliable service at more than fuel in fuel tank or storage container . Run 30,000 Authorized Service Dealers worldwide , engine for a short time to circulate Additive including more than 2,700 Master Service through carburetor . Engine and fuel can be Technicians . Look for these signs wherever P / N 5041 stored up to 24 months . Briggs & Stratton service is offered . Your Service Dealer has single - use You may locate your nearest Authorized Briggs & pouches of Gasoline Additive available . Stratton Service Dealer in the “ Yellow Pages  � directory under “ Engines , Gasoline � or “ Gasoline  Engines , � or “ Lawn Mowers � or similar category . Note : If engine is operating on oxygenated or reformulated Or log on to our dealer locator map on our web site gasoline ( gasoline blended with an alcohol or an ether ) , www.briggsandstratton.com remove all fuel from tank and run engine until it stops from Note : Walking fingers logo and “ Yellow Pages � are registered lack of fuel . If engine is stored with gasoline in fuel tank , we trademarks in various jurisdictions . recommend the use of Gasoline additive , Part No . 5041 . The illustrated shop manual shown here 2 . While engine is still warm , drain oil from crankcase includes “ Theories of Operation , � com - ( see page 6 ) . Refill with fresh oil of recommended grade mon specifications and detailed informa - ( see chart page 3 ) . tion covering adjustment , tune - up and repair of Briggs & Stratton single cylinder , 3 . Remove spark plug and pour about 1 oz ( 30 ml ) of engine overhead valve , 4 cycle engines . It is oil into cylinder . Replace spark plug and crank slowly to available from an Authorized Briggs & distribute oil . Stratton Service Dealer or you can order 4 . Clean dirt and chaff from cylinder , cylinder head fins , blower it from the factory . Write : housing , rotating screen and muffler area ( see page 7 ) . Briggs & Stratton Corporation Part No . 272147 Attn : Service Division 5 . Store in a clean and dry area , but NOT near a stove , P . O . Box 1144 furnace or water heater which uses a pilot light or any Milwaukee , WI 53201 device that can create a spark . General information Tune - up specifications This is a single cylinder , over - head valve ( OHV ) , air - cooled Armature air gap is . 010 - . 014 in . ( . 25 - . 36 mm ) engine . Spark plug gap is . 030 in . ( . 76 mm ) On mobile equipment , this engine will operate satisfactorily at Valve clearance is : any angle at which operator and equipment can function safely . Intake * . . . . . . . . . . . . . . . . . . . . . . 0.03 - . 005 in . ( . 08 - . 13 mm ) Model Series 28E700 , 28N700 , 287700 , 28P700 , 28Q700 , Exhaust * . . . . . . . . . . . . . . . . . . . . 0 . 05 - . 007 in . ( . 13 - . 18 mm ) 28S700 , 28U700 * with valve springs installed and piston 1 / 4 in . ( 6mm ) past Bore . . . . . . . . . . . . . . . . . . . . . . . . . . 3 . - . 7 / 16 in . ( 87.31 mm ) top dead center . Stroke . . . . . . . . . . . . . . . . . . . . . . . . 3 . - . 1 / 16 in . ( 77.78 mm ) Displacement . . . . . . . . . . . . . . . . . . 2 . 8.42cu . in . ( 465.7 cc ) Torque ( Max . ) . . . . . . . . . . . . . . . . . 2.2.9 ft . lbs . @ 2700 rpm Model Series 310700 , 311700 , 312700 , 313700 Bore . . . . . . . . . . . . . . . . . . . . . . . . . . 3 . - . 9 / 16 in . ( 90.60 mm ) Stroke . . . . . . . . . . . . . . . . . . . . . . . . 3 . - . 1 / 16 in . ( 77.78 mm ) Displacement . . . . . . . . . . . . . . . . . . 3.0.59 cu . in . ( 501.2 cc ) Note : For practical operation , the horsepower loading should not exceed 85 % of rated horsepower . Engine power will 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 ) . In the USA and Canada , a 24 hour hot line , 1 - 800 - 233 - 3723 , has a menu of pre - recorded messages offering you engine maintenance information . 9
Page: 10
273683 Briggs & Stratton Corporation ( B & S ) , the California Air Resources Board ( CARB ) and the United States Environmental Protection Agency ( U.S . EPA ) Emission Control System Warranty Statement ( Owner’s Defect Warranty Rights and Obligations ) TO CERTIFIED ENGINES PURCHASED IN CALIFORNIA IN 1995 In the interest of the environment , B & S engines that meet strict emis - AND THEREAFTER , WHICH ARE USED IN CALIFORNIA , AND sion requirements are labeled , “ This engine conforms to 1995 - 1998 TO CERTIFIED MODEL YEAR 1997 AND LATER ENGINES California emission regulations for ULGE engines and U.S . EPA WHICH ARE PURCHASED AND USED ELSEWHERE IN THE Phase I regulations for small non - road engines . � UNITED STATES . EMISSION CONTROL WARRANTY COVERAGE IS APPLICABLE California and United States Emission Control Defects Warranty Statement CARB , U.S . EPA and B & S are pleased to explain the Emission Con - there has been no abuse , neglect or improper maintenance of your trol System Warranty on your 1996 and later utility or lawn and gar - ULGE engine . den equipment ( ULGE ) engine . In California , new ULGE engines Your emission control system includes parts such as the carburetor , produced on or after August 1 , 1995 must be designed , built and air cleaner , ignition system , muffler and catalytic converter . Also in - equipped to meet the State’s stringent anti - smog standards . Else - cluded may be connectors and other emission related assemblies . where in the United States , new non - road , spark - ignition engines Where a warrantable condition exists , B & S will repair your ULGE en - certified for model year 1997 and later , must meet similar standards gine at no cost to you including diagnosis , parts and labor . set forth by the U.S . EPA . B & S must warrant the emission control system on your engine for the periods of time listed below , provided Briggs & Stratton Emission Control Defects Warranty Coverage ULGE engines are warranted relative to emission control parts de - any covered part on your engine is defective , the part will be repaired fects for a period of two years , subject to provisions set forth below . If or replaced by B & S . Owner’s Warranty Responsibilities As the ULGE engine owner , you are responsible for the performance You are responsible for presenting your ULGE engine to an Autho - of the required maintenance listed in your Operator / Owner Manual . rized B & S Service Dealer as soon as a problem exists . The undis - B & S recommends that you retain all your receipts covering mainte - puted warranty repairs should be completed in a reasonable amount nance on your ULGE engine , but B & S cannot deny warranty solely of time , not to exceed 30 days . for the lack of receipts or for your failure to ensure the performance of If you have any questions regarding your warranty rights and re - all scheduled maintenance . sponsibilities , you should contact a B & S Service Representative at 1 - 414 - 259 - 5262 . As the ULGE engine owner , you should however be aware that B & S may deny you warranty coverage if your ULGE engine or a part has The emission warranty is a defects warranty . Defects are judged on failed due to abuse , neglect , improper maintenance or unapproved normal engine performance . The warranty is not related to an in - use modifications . emission test . Briggs & Stratton Emission Control Defects Warranty Provisions The following are specific provisions relative to your Emission Control Defects Warranty Coverage . It is in addition to the B & eSngine warranty for non - regulated engines found in the Operator / Owner Manual . 3 . No Charge 1 . Warranted Parts Repair or replacement of any Warranted Part will be performed Coverage under this warranty extends only to the parts listed be - at no charge to the owner , including diagnostic labor which leads low ( the emission control systems parts ) to the extent these to the determination that a Warranted Part is defective , if the parts were present on the engine purchased . diagnostic work is performed at an Authorized B & S Service a . Fuel Metering System Dealer . For emissions warranty service contact your nearest Au - • Cold start enrichment system ( soft choke ) thorized B & S Service Dealer as listed in the “ Yellow Pages � un - der “ Engines , Gasoline , � “ Gasoline Engines , � “ Lawn Mowers , � • Carburetor and internal parts or similar category . • Fuel Pump 4 . Claims and Coverage Exclusions b . Air Induction System Warranty claims shall be filed in accordance with the provisions • Air cleaner of the B & S Engine Warranty Policy . Warranty coverage shall be • Intake manifold excluded for failures of Warranted Parts which are not original B & S parts or because of abuse , neglect or improper mainte - c . Ignition System nance as set forth in the B & S Engine Warranty Policy . B & S is not • Spark plug ( s ) liable to cover failures of Warranted Parts caused by the use of • Magneto ignition system add - on , non - original , or modified parts . 5 . Maintenance d . Catalyst System Any Warranted Part which is not scheduled for replacement as • Catalytic converter required maintenance or which is scheduled only for regular in - • Exhaust manifold spection to the effect of “ repair or replace as necessary � shall be • Air injection system or pulse valve warranted as to defects for the warranty period . Any Warranted Part which is scheduled for replacement as required mainte - e . Miscellaneous Items Used in Above Systems nance shall be warranted as to defects only for the period of time • Vacuum , temperature , position , time sensitive valves up to the first scheduled replacement for that part . Any replace - and switches ment part that is equivalent in performance and durability may • Connectors and assemblies be used in the performance of any maintenance or repairs . The owner is responsible for the performance of all required mainte - 2 . Length of Coverage nance , as defined in the B & S Operator / Owner Manual . B & S warrants to the initial owner and each subsequent purchaser 6 . Consequential Coverage that the Warranted Parts shall be free from defects in materials and workmanship which caused the failure of the Warranted Coverage hereunder shall extend to the failure of any engine Parts for a period of two years from the date the engine is deliv - components caused by the failure of any Warranted Part still un - ered to a retail purchaser . der warranty . In the USA and Canada , a 24 hour hot line , 1 - 800 - 233 - 3723 , has a menu of pre - recorded messages offering you engine maintenance information . 10
Page: 11
About your engine warranty : ( see back cover for statement of LIMITED WARRANTY ) . 4 . Parts which are scored or broken because an engine was Briggs & Stratton welcomes warranty repair and apologizes operated with insufficient or contaminated lubricating oil , to you for being inconvenienced . Any Authorized Service or an incorrect grade of lubricating oil ( check oil level daily Dealer may perform warranty repairs . Most warranty repairs or after every 8 hours of operation . Refill when necessary are handled routinely , but sometimes requests for warranty and change at recommended intervals . ) Read “ Owner’s service may not be appropriate . For example , warranty would Manual . � not apply if engine damage occurred because of misuse , lack of routine maintenance , shipping , handling , warehousing or 5 . Repair or adjustment of associated parts or assemblies improper installation . Similarly , warranty is void if the serial such as clutches , transmissions , remote controls , etc . , number of the engine has been removed or the engine has which are not manufactured by Briggs & Stratton . been altered or modified . 6 . Damage or wear to parts caused by dirt , which entered the engine because of improper air cleaner maintenance , If a customer differs with the decision of the Service Dealer , an re - assembly , or use of a non - original air cleaner element investigation will be made to determine whether the warranty or cartridge . ( At recommended intervals , clean and re - oil applies . Ask the Service Dealer to submit all supporting facts to element or the foam pre - cleaner , and re - the Oil - Foam  his Distributor or the Factory for review . If the Distributor or the place the cartridge . ) Read “ Owner’s Manual . � Factory decides that the claim is justified , the customer will be 7 . Parts damaged by overspeeding , or overheating caused fully reimbursed for those items that are defective . To avoid by grass , debris , or dirt , which plugs or clogs the cooling misunderstanding which might occur between the customer fins , or flywheel area , or damage caused by operating the and the Dealer , listed below are some of the causes of engine engine in a confined area without sufficient ventilation . failure that the warranty does not cover . ( Clean fins on the cylinder , cylinder head and flywheel at recommended intervals . ) Read “ Owner’s Manual . � Improper maintenance : 8 . Engine or equipment parts broken by excessive vibration caused by a loose engine mounting , loose cutter blades , The life of an engine depends upon the conditions under unbalanced blades or loose or unbalanced impellers , im - which it operates , and the care it receives . Some applications , proper attachment of equipment to engine crankshaft , such as tillers , pumps and rotary mowers , are very often used overspeeding or other abuse in operation . in dusty or dirty conditions , which can cause what appears to 9 . A bent or broken crankshaft , caused by striking a solid ob - be premature wear . Such wear , when caused by dirt , dust , ject with the cutter blade of a rotary lawn mower , or exces - spark plug cleaning grit , or other abrasive material that has sive v - belt tightness . entered the engine because of improper maintenance , is not 10 . Routine tune - up or adjustment of the engine . covered by warranty . 11 . Engine or engine component failure , i.e . , combustion chamber , valves , valve seats , valve guides , or burned This warranty covers engine related defective material starter motor windings , caused by the use of alternate and / or workmanship only , and not replacement or refund fuels such as , liquified petroleum , natural gas , altered of the equipment to which the engine may be mounted . gasolines , etc . Nor does the warranty extend to repairs required be - cause 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 - Warranty is available only through service dealers which gine life . ( Contact equipment manufacturer . ) have been authorized by Briggs & Stratton Corporation . 3 . Leaking carburetors , clogged fuel pipes , sticking valves , Your nearest Authorized Service Dealer is listed in the or other damage , caused by using contaminated or stale “ Yellow Pages  � of your telephone directory under “ En - fuel . ( Use clean , fresh , lead - free gasoline and Briggs & gines , Gasoline � or “ Gasoline Engines , � “ Lawn Mow - Stratton gasoline stabilizer , Part No . 5041 . ) ers , � or similar category . Briggs & Stratton Engines Are Made Under One Or More Of The Following Patents : Design D - 247,177 ( Other Patents Pending ) 5,642,701 5,320,795 5,197,425 5,105,331 5,009,208 4,875,448 4,522,080 DES . 309,458 5,606,948 5,271,363 5,197,422 5,086,890 4,996,956 4,819,593 4,520,288 DES . 309,457 5,548,955 5,269,713 5,191,864 5,070,829 4,995,357 4,719,682 4,453,507 DES . 308,872 5,546,901 5,265,700 5,188,069 5,058,544 4,977,879 4,694,792 4,430,984 DES . 308,871 5,503,125 5,243,878 5,186,142 5,040,644 4,971,219 4,633,556 4,355,253 5,497,679 5,235,943 5,138,996 5,040,503 4,895,119 4,630,498 4,270,509 In the USA and Canada , a 24 hour hot line , 1 - 800 - 233 - 3723 , has a menu of pre - recorded messages offering you engine maintenance information . 11
Page: 12
BRIGGS & STRATTON ENGINE OWNER WARRANTY POLICY effective July 1 , 1998 Replaces all undated Warranties and all Warranties dated before July 1 , 1998 LIMITED WARRANTY “ Briggs & Stratton Corporation will repair or replace , free of charge , any part , or parts of the engine that are 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 the time periods and subject to the conditions provided for in this policy . For warranty service contact your nearest Authorized Service Dealer as listed in the ‘ Yellow Pa  ge ’ sunder ‘ Engines , Gasoline , ’ ‘ Gasoline Engines , ’ ‘ Lawn Mowers ’ or similar category . THERE IS NO OTHER EXPRESS WARRANTY . IM - PLIED WARRANTIES , INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO ONE YEAR FROM PURCHASE , OR TO THE EXTENT PERMITTED BY LAW ANY AND ALL IMPLIED WARRANTIES ARE EXCLUDED . LIABILITY FOR CONSEQUENTIAL DAMAGES UNDER ANY AND ALL WARRANTIES ARE EXCLUDED TO THE EXTENT EXCLUSION IS PERMITTED BY LAW . Some states do not allow limitations on how long an implied warranty lasts , and some states do not allow the exclusion or limitation of incidental or consequential dam - ages , 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 . � Briggs & Stratton Corporation F . P . Stratton , Jr . Chairman and Chief Executive Officer WARRANTY PERIOD WITHIN U.S.A . AND CANADA OUTSIDE U.S.A . AND CANADA CONSUMER COMMERCIAL CONSUMER COMMERCIAL ENGINES USE * USE * USE * USE * All Vanguard  engines . 2 year – engine � / Lifetime * * – Magnetron  ignition All Diamond Plus  , Industrial Plus  , I / C  2 year 1 year 1 year 2 year � engines and sleeve bore Intek series . Quantum  and Diamond Power  . 2 year 90 days 90 days � 2 year � � All standard engines and Kool Bore  Intek series installed on lawn mowers , riders , edgers , 2 year 90 days 1 year 90 days chippers , shredders , tillers , fun carts , and all Sno / Gard engines . All other standard engines and Classic  series . 1 year 90 days 1 year 90 days * For purposes of this warranty policy , “ consumer use � means personal residential household use by the original 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 purposes of this warranty . Engines used in competitive racing or on commercial or rental tracks are not warrantied . * * Lifetime limited warranty of the Magnetron  ignition covers parts and labor for the first five ( 5 ) years from the date of purchase ; thereafter only parts . “ Lifetime � means lifetime of the engine in the hands of the original purchaser . � One ( 1 ) year in Australia , New Zealand , Middle East and Africa . � One ( 1 ) year in India . NO WARRANTY REGISTRATION CARD IS NECESSARY TO OBTAIN WARRANTY ON BRIGGS & STRATTON ENGINES . YOU MUST SAVE THE PURCHASE RECEIPT . A PROOF OF PURCHASE DATE WILL BE REQUIRED TO OBTAIN WARRANTY . In the USA and Canada , a 24 hour hot line , 1 - 800 - 233 - 3723 , has a menu of pre - recorded messages offering you engine maintenance information . 12