Briggs & Stratton 112200 User's Manual
Contents
1. BRIGGS amp STRATTO Ki OPERATING AND MAINTENANCE INSTRUCTIONS MODEL SERIES 112200 BRIGGS amp STRATTON CORP FORM NO 271463 6 85 Milwaukee Wisconsin 53201 PRINTED IN U S A IMPORTANT SAFETY INFORMATION AND INSTRUCTIONS FOR In the USA and Canada our 24 hour hotline is ENGINE SELECTION 18002333723 ENGINE INSTALLATION Briggs amp Stratton Corporation ENGINE OPERATION Milwaukee Wisconsin 53201 www briggsandstratton com Keep these instructions for future reference A LLI Before installing and operating this engine read and observe all warnings cautions and instructions on both sides of this sheet on the engine and in the operating amp maintenance instructions NOTE This sheet of instructions and safety information is not meant to cover all possible conditions and situations that may occur Read entire Operating amp Maintenance Instructions for this engine AND the instructions for the equipment this engine powers Failure to follow instructions and safety information could result in serious injury or death The safety alert symbol 4d is used to identify safety HAZARD SYMBOLS AND MEANINGS information about hazards that can result in personal injury j A signal word DANGER WARNING or CAUTION is used with the alert symbol to indicate the likelihood and the potential severity of injury In addition a hazard symbol may be used to represent the type Moving Parts of hazard A DANGER i2. 10 11 All engine parts including fuel cap spark plug muffler air cleaner and covers and guards for drive components gears belts shafts couplings etc must be in place before attempt ing to start engine A s If engine is installed on walk behind lawn mower all mower components including cutting blade must be correctly installed before attempting to start engine When working on the engine or equipment remove spark plug wire from spark plug For electric start remove negative wire from battery Do not check for spark with spark plug removed Use Briggs amp Stratton spark tester 19368 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 Fill tank to about 1 inch below lowest portion of neck to allow for fuel expansion Keep gasoline away from sparks open flames pilot lights heat and other ignition sources A WARNING When starting engine Remove all external equipment engine loads Wait until spilled fuel is evaporated Start engine outdoors Pull cord slowly until resistance is felt then pull rapidly If engine floods set choke to OPEN RUN place throttle in FAST and crank until engine starts A WARNING When operating equipment Do not tip engine or equipment at angle which causes gasoline to spill Run engine outdoors Do not run in enclosed area even if doors
3. a synthetic oil may be used having 5W 20 5W 30 or FUEL RECOMMENDATIONS Our engines will operate satisfactorily on any gasoline intended for automotive use DO NOT MIX OIL WITH GASOLINE We recommend the use of clean fresh lead free gasoline Leaded gasoline may be used if lead free is not available A minimum of 77 octane is recom mended The use of lead free gasoline results in fewer combustion deposits and longer valve life DO NOT fill fuel tank to point of overfiowing Provide approximately 1 4 of tank space for fuel expansion HOLDING TAB FOR SPARK PLUG WIRE STOP SWITCH OPTIONAL ON SOME MODELS SPARK PLUG 120 VOLT ELECTRIC STARTER REWIND STARTER GRIP OIL FILL PLUG ROTATING SCREEN CYLINDER AiR CLEANER MODEL TYPE AND CODE NUMBER ON BLOWER HOUSING CYLINDER MUFFLER She pp FUEL TANK v CRANKSHAFT OIL LEVEL STARTING Start store and fuel engine in a level position DO NOT use a pressurized starting fluid as severe internal engine damage may occur due to loss of lubrication CHOKE ENGINE Engine may be equipped with either manual remote or choke a matic controls MANUAL CHOKE Move lever as illustrated CHOKE A MATIC CONTROLS Move controls as far as possible toward CHOKE or START STOP SWITCH Move STOP switch away from spark plug or to ON position as illustrated if so equipped NOTE A warm engine requires less choking than a co
4. foam pre cieaner by sliding it off the paper cartridge 3 a Wash foam pre cleaner in kerosene or liquid detergent and water b Wrap foam pre cleaner in cloth and squeeze dry c Saturate foam pre cleaner in engine oil Squeeze to remove excess Oil 4 install foam pre cleaner over paper cartridge Re assemble cover and screw down securely NOTE Replace or clean cartridge included with DUAL ELEMENT AIR CLEANER yearly or every 100 hours as described in CARTRIDGE AIR CLEANER Service more often if necessary OIL FOAM AIR CLEANER OPTIONAL Clean and re oil foam element at three month intervals or every 25 hours whichever occurs first NOTE Service air cleaner more often under dusty conditions MAINTENANCE cont Remove screw Remove air cleaner carefully to prevent dirt from entering carburetor Take air cleaner apart and clean a WASH foam element in kerosene or liquid de tergent and water to remove dirt b Wrap foam in cloth and squeeze dry c Saturate foam with engine oil Squeeze to re move excess oil 4 Reassembie parts and fasten to carburetor securely with screw NM w SCREW coven Co ELEMENT ASSEMBLE ELEMENT SO LIP EXTENDS OVER EDGE OF AIR CLEANER BODY M A XEM AE i LIP WILLFORM PROTECTIVE SEAL 77 WHENCOVERIS ASSEMBLED f OIL FOAM AIR CLEANER REMOVE COMBUSTION DEPOSITS every 100 300 hours of operation Remove cylind
5. or windows are open Do not choke carburetor to stop engine FORM MS 6445 01 03 IN THE INTEREST OF SAFETY DANGER DO NOT RUN THE ENGINE IN AN ENCLOSED AREA Exhaust gases contain carbon monoxide an odorless and deadly poison A FIRE OR EXPLOSION CAN OCCUR RESULTING IN PERSONAL INJURY IF THE FOLLOWING INSTRUCTIONS ARE NOT FOLLOWED 1 DO NOT FILL GASOLINE TANK while engine is running Allow engine to cool for two minutes before refueling 2 Do not operate the engine when an odor of gasoline is present or other explosive conditions exist 3 If gasoline is spilled move machine away from the area of the spill and avoid creating any source of ignition until the gasoline has evaporated 4 DO NOT STORE SPILL OR USE GASOLINE NEAR AN OPEN FLAME or devices such as a Stove furnace water heater which utilize a pilot light or devices which can create a spark 5 Refuel outdoors preferably or only in well ventilated areas 6 DO NOT OPERATE ENGINE WITHOUT A MUFFLER Inspect muffler periodically and replace if necessary 7 Periodically clean the muffler area to prevent grass dirt and combustible material from accumulating 8 DO NOT use this engine on any forest covered brush covered or grass covered unimproved land unless a spark arrester is attached to the muffler 9 DO NOT operate the engine if air cleaner or cover directly over the carburetor air intake is removed 10 DO NOT choke carburetor
6. repair procedure Your nearest service center is listed in the Yellow Pages under Engines Gasoline or Gasoline Engines He is one of over 25 000 authorized dealers available to serve yellow pages you This illustrated book includes Theories of Operation com mon specifications and detailed information covering the ad justment tune up and repair procedures for 2 through 16 H P single cylinder 4 cycle models it is available from any Authorized Briggs amp Stratton Service Center Order as Part Number 270962 GENERAL INFORMATION This engine is a single cylinder L head air cooled type MODEL SERIES 112200 BOB E aria Stans ge 2 25 32 70 64 mm Stroke ENEE ENEE ches NS 1 7 8 47 63 mm Displacement 11 39 cu in 186 7 cc Horsepower Max 4 00 3600 RPM Torque Ft Lbs Max 6 12 2600 RPM The horsepower rating listed is established in ac cordance with the Society of Automotive Engineers Test Code J607 For practical operation the horse power loading should not exceed 85 of this rating Engine power will decrease 3 1 296 for each 1 000 feet 304 8 m above sea level and 196 for each 10 above 60 F 16 C In some areas local law requires the use of a resistor spark plug so as to suppress ignition signals If an engine was originally equipped with a resistor spark plug be sure to use the same type of spark plug for replacement TUNE UP SPECIFICATIONS 4 27
7. 0 508 STORAGE INSTRUCTIONS Engines to be stored over 30 days should be com pletely drained of fuel to prevent gum deposits forming on essential carburetor parts fuel filter and tank NOTE The use of a fuel additive such as STA BIL or an equivalent will minimize the formation of fuel gum deposits during storage Such an additive may be added to the gasoline in the fuel tank of the engine or to the gasoline in a storage container a All fuel shouid be removed from the tank Run the engine until it stops from lack of fuel b While engine is still warm drain oil from crankcase Refill with fresh oil c Remove spark plug pour approximately 1 2 ounce 15cc of engine oil into cylinder and crank slowly to distribute oil Replace spark plug d Clean dirt and chaff from cylinder cylinder head fins blower housing rotating screen and muffler areas e Store in a clean and dry area 4 233 043 DESIGN D 247 177 Spark Plug Type Champion Autolite Short Plug CJ 8 235 Long Plug J 8C 295 Resistor Short Plug RCJ 8 245 Resistor Long Plug RJ 8C 306 Spark Plug Gap 030 76 mm Intake Valve Clearance 005 007 13 18 mm Exhaust Valve Clearance 009 011 23 28 mm BRIGGS amp STRATTON ENGINES ARE MADE UNDER ONE OR MORE OF THE FOLLOWING PATENTS 2 999 491 3 305 223 3 526 146 3 625 492 3 745 393 3 971 353 3 194 224 3 457 804 3 572 218 3 650 354 3 961 724 4 168 288 3 276 439 3 465 740 3 62
8. 5 071 3 738 345 3 968 854 4 189 040 OTHER PATENTS PENDING BEFORE STARTING READ THE OPERATING INSTRUCTIONS OF THE EQUIPMENT THIS ENGINE POWERS OiL RECOMMENDATIONS Note Engine is shipped WITHOUT oil Use a high quality detergent oil classified For Service SF SE SD or SC Detergent oils keep the engine cleaner and retard the formation of gum and varnish deposits Nothing should be added to the recom mended oil RECOMMENDED SAE VISCOSITY GRADES SE es Eee wm 10W _ IDE 40 20 10 TEMPERATURE RANGE EE T PUN Se SE 5W 40 viscosity TO FILL CRANKCASE WITH OiL Place engine level Clean area around oil fil before removing oil fill plug or oil minder OIL FILL PLUG Remove oil fill plug or optional ot minder Fill crankcase to point of overflowing POUR SLOWLY Capacity approximately 1 1 4 pints 0 6 liters Replace oil fill plug or oil minder PRESS BELLOWS LOOK FOR OIL HERE OIL FILL PLUG OIL MINDER EXTENDED OIL FILL Optional Remove cap and dipstick FILL TO FULL MARK on dipstick POUR SLOWLY Capacity approximately 1 1 4 pints 0 6 liters When checking oil level screw dipstick assem bly firmly but slowly until cap bottoms on tube DO NOT OVERFILL or excessive smoking may occur when engine is run Dipstick assembly must be securely assembled to tube at all times when engine is oper ating EXTENDED OIL FILL FORM NO 271463 6 85 If not available
9. IN THE INTEREST OF ENVIRONMENT A muffler which leaks because of rust or damage can permit an increased exhaust noise level Therefore examine the muffler periodically to be sure it is functioning effectively To purchase a new muffler see SERVICE AND REPAIR INFORMATION WARNING If this engine is not equipped with a spark arrester and is to be used on any forest covered brush covered or grass covered unimproved land before using on such land a spark arrester must be added to ihe muffler The arrester must be maintained in effective working order by the operator in the State of California the above is required by law Section 4442 of the California Public Resources Code Other states may have similar laws Federal laws apply on federal lands See your Authorized Briggs amp Stratton Service Center for spark arrester muffler options SERVICE amp REPAIR INFORMATION If service or repair is needed contact an Authorized Briggs amp Stratton Service Center To serve you promptly and efficiently the Service Center wili need the model type and code number on your engine Each Authorized Service Center carries a stock of original Briggs amp Stratton repair parts and is equipped with special service tools Trained mechanics assure expert repair service on ail Briggs amp Stratton engines Major engine repairs should not be attempted uniess you have the proper tools and a thorough knowledge of internal combustion engine
10. authorize such uses ENGINE INSTALLATION 1 2 3 4 5 6 7 Do not attempt to install this engine if you do not have the appropriate tools and knowledge of small engine installation procedures Use only Briggs amp Stratton parts Contact your Authorized Service Dealer for assistance Do not modify the engine in any way without Briggs amp Stratton factory approval Any such modification is at the owner s sole risk If the exhaust system on the old engine was supplied by the equipment manufacturer you must transfer the exhaust system and related components original muffler and related pipes brackets clamps and shields to the new engine All components must be in good condition WARNING Install muffler and muffler de flector if used so outlet points away from operator fuel tank and equipment and so muffler heat will not damage or deform engine and components i Ensure all fuel lines and fittings are properly assembled and do not leak Replacement parts must be the same model as the original A WARNING Ensure all wiring including safe ty switches and engine shut off components are completely installed and functioning proper ly Set engine speed to equipment manufacturer s specification Refer to equipment manufacturer s manual Do not tamper with governor springs or other parts that will increase engine speed above specification LE WARNING 9 LL WARNING
11. c starter is equipped with a three prong plug for your safety The longer prong in this plug is connected to the starter motor housing When the starter motor is plugged into the three wire cord supplied and the cord is plugged into a properly grounded receptacle it will protect the user from shock should the starter motor insulation fail for any reason If a longer extension cord is used with this starter itshould also havethree prong and three hole plugs THREE WIRE RECEPTACLE CORD PLUG TO STOP ENGINE Move control to slow then STOP or OFF position Do not choke the carburetor to stop engine MAINTENANCE WARNING TO PREVENT ACCIDENTAL STARTING when servicing the engine or equipment always remove the spark plug or wire from the spark plug and insert in holding tab shown on page 3 CHECK OIL LEVEL regularly after each five hours of operation BE SURE OIL LEVEL IS MAINTAINED CHANGE OIL atter first five hours of operation There after change engine oil every 50 hours of operation under normal operating conditions Change engine oi every 25 hours of operation if the engine is operated under heavy load or in high ambient temperatures Remove oil drain plug and drain oil while engine is warm Replace drain plug Remove oil fill plug oil minder or cap and dipstick and refill with new oi of proper grade Replace oil fill plug oil minder or cap and dipstick CHANGE OIL GEAR REDUCTION o
12. er head and cylinder head shield Scrape and wire brush the combustion deposits from cylinder cylinder head top of piston and around valves Use a soft brush to remove deposits He assemble gasket cylinder head and cylinder head shield Turn screws down finger tight with the three longer screws around the exhaust valve if so equip ped Torque cylinder head screws in a staggered sequence to 140 inch pounds 15 82 Nm CLEAN ENGINE Remove dirt and debris with a cloth or brush Cleaning with a forceful spray of water is not recommended as water could contaminate the fuel System CLEAN COOLING SYSTEM Grass chaff or dirt may clog the rotating screen and the air cooling system especially after prolonged service cutting dry grass Yearly or every 100 hours whichever occurs first remove the blower housing and clean the areas shown to avoid overspeeding overheating and engine dam age Clean more often if necessary CLEAN OUT CHAFF AND DIRT DANGER Periodically clean muffler area to remove all grass dirt and combustibie debris SPARK ARRESTER EQUIPPED MUFFLER If engine muffler is equipped with spark arrester screen assem bly remove every 50 hours for cleaning and inspection Replace if damaged SPARK PLUG Clean and reset gap at 030 every 100 hours of operation 030 76 mm FEELER GAUGE e fh N SPARK PLUG NOTE Do not blast clean spark piug Spark plug should be cleaned by scraping or wire bru
13. ld engine NOTE Engine may not start if controls on powered equipment do not close choke fully See ADJUST MENT section SPEED CONTROL LEVER Move speed control lever to RUN FAST or START position if so equipped TYPICAL CONTROL TO START ENGINE DANGER ALWAYS KEEP HANDS AND FEET CLEAR OF MOWER BLADE OR OTHER ROTATING MA CHINERY Rewind Starter Grasp starter grip as illustrated and pull slowly until starter engages Then pull cord rapidly to overcome compression prevent kickback and start engine Repeat if necessary with choke opened slightly When engine starts open choke gradually Rope Starter Wind the starter rope around the pulley in direction shown by arrow Pull the rope with a quick full arm stroke to overcome compression and prevent kickback Repeat if necessary with choke opened slightly When engine starts open choke gradually CAUTION When using rope starter to crank engine use caution so knotted end of rope does not strike persons standing nearby Electric Starter On engines equipped with electric starting systems press starter button Release button as soon as engine starts and gradually open choke TIPS TO OBTAIN BEST STARTING PERFORMANCE a The best starter life is provided by using short starting cycles of several seconds Prolonged cranking can damage the starter motor if cranked more than 15 seconds per minute b Disengage load from engine during start CAUTION The 120 volt electri
14. ndicates a hazard which if not avoided 23 HI will result in death or serious injury lif Toxic Fumes Hot Surface Shock A WARNING indicates a hazard which if not avoided could result in death or serious injury K A CAUTION indicates a hazard which if not avoided might result in minor or moderate injury Kickback CAUTION when used without the alert symbol indicates a situation that could result in damage to the engine OVER FORM MS 6445 01 03 ENGINE SELECTION Failure to select the correct engine could result in fire or explosion Some engines are unique and designed for specific applications or types of equipment If this engine will be used to build new equipment contact Briggs amp Stratton to ensure that the engine is appropriate for the intended use Note For all Go karts use only a model 136200 series en gine which offers improved safety and performance Replacement engines should be the same model as the original engine or be the Briggs amp Stratton designated replacement engine Refer to the Operation amp Maintenance Instructions for engine identification information Note For all Go karts use only a model 136200 series en gine which offers improved safety and performance Do not use Briggs amp Stratton engines on 3 wheel All Terrain Vehicles ATVs motor bikes air craft products or vehicles intended for use in competitive events Briggs amp Stratton does not approve of or
15. ol rod as shown below Speed Control Controls on powered equipment should move gover nor speed lever in a direction that will elongate governor spring to increase speed
16. operly the carburetor should be re adjusted usually to a slightly richer mixture CONTROL ADJUSTMENTS The speed control must be properly adjusted to stop start and operate the engine at maximum speed TO CHECK OPERATION OF CHOKE CONTROLS Move speed contro lever to choke position The carburetor choke should be closed STOP SWITCH To Adjust Place speed control lever on equipment in FAST high speed position Loosen contro casing clamp screw B on control plate Move control casing A and wire forward or backward until washer C just touches the choke operating bel crank D Tighten casing clamp screw B on contro plate Recheck operation of controls after adjustment Move control lever to STOP position Lever must make good contact with stop switch if so equipped Replace air cleaner SPEED CONTROL ADJUSTMENT The acceptable operating speed range is 1800 to 3600 RPM Idle speed is 1750 RPM The manufacturer of the equipment on which the engine is used specifies the top governed no load speed at which the engine may be operated DO NOT EXCEED this speed Standard Control Fixed Speed The governor speed lever has been adjusted to permit the top no load speed specified by the equipment manufacturer DO NOT bend governor speed lever STANDARD TURN THUMB SCREW SPEED CLOCKWISE TO CONTROL SE SPEED INCREA ES 3 Manual Friction Control To increase or decrease engine speed move conir
17. ptional Remove oil level piug and oil fill plug Drain oil every 100 hours of operation To refill pour 10W 30 oil into filler hole until it runs out level check hole Repiace both plugs Oil fili plug has a vent hole and must be installed on top of gear case cover OIL FILLER PLUG OIL LEVEL PLUG TO SERVICE AIR CLEANERS CARTRIDGE AIR CLEANER Clean cartridge at three month intervals or every 25 hours whichever occurs first NOTE Service more often if necessary 1 Remove knob and cover 2 Remove cartridge by pulling it off of the screw 3 Clean by tapping gently on a flat surface If very dirty replace cartridge or ciean as follows a Wash in a low or non sudsing detergent and warm water solution CAUTION Do not use petroleum solvents such as kerosene to clean cartridge b Rinse thoroughly with flowing water from inside out until water is clear C Allow cartridge to stand and air dry thoroughly before using DO NOT OIL CARTRIDGE DO NOT USE PRESSURIZED AIR TO CLEAN OR DRY CARTRIDGE 4 Install cartridge then cover and screw knob down securely CARTRIDGE FOAM PRE CLEANER BASE PLATE CO GASKET mC DUAL ELEMENT AIR CLEANER CARTRIDGE DUAL ELEMENT AIR CLEANER OPTIONAL ON SOME MODELS Clean and re oil foam pre cleaner at three month intervals or every 25 hours whichever occurs first NOTE Service air cleaner more often under dusty conditions 1 Remove knob and cover 2 Remove
18. shing and washing with a commercial solvent CAUTION Sparking can occur if wire terminai does not fit firmly on spark plug or if stop switch vibrates against spark plug Reform terminal or repair switch if necessary ADJUSTMENTS CARBURETOR ADJUSTMENTS Minor carburetor adjustment may be required to com pensate for differences in fuel temperature altitude or load NOTE The air cleaner must be assembled to car buretor when running engine TO ADJUST CARBURETOR Gently turn valve clockwise until it just closes Valve may be damaged by turning it in too far Now open needie vaive 1 1 2turns counterclockwise This initial adjustment will permit the engine to be started and warmed up approximately 5 minutes prior to final adjustment IDLE SPEED ES ADJUSTING SCREW THROTTLE THROTTLE NEEDLE VALVE ADJUSTMENTS cont FINAL ADJUSTMENT Place speed control lever in FAST position Turn needle vaive in until engine slows clockwise lean mixture Then turn it out past smooth operating point until engine runs unevenly rich mixture Now turn needle valve to the midpoint between rich and lean so the engine runs smoothly Next adjust idle RPM Rotate throttle counterclockwise and hold against stop while adjusting idle speed adjusting screw to obtain 1750 RPM Release throttle engine should accel erate without hesitation or sputtering If engine does not accelerate pr
19. to stop the engine WARNING DO NOT RUN ENGINE AT EXCESSIVE SPEEDS Operating an engine at excessive speeds increases the danger of personal injury 1 DO NOT TAMPER WITH GOVERNOR SPRINGS GOVERNOR LINKS OR OTHER PARTS WHICH MAY INCREASE THE GOVERNED ENGINE SPEED 2 ANS Standard Safety Specifications for rotary power lawn mowers specify a maximum blade tip speed of 19 000 feet per minute 96 5 meters per second primarily to reduce the danger from thrown objects 3 Do not tamper with the engine speed selected by the original equipment manufacturer 4 DONOT TOUCH hot mufflers cylinders or fins as contact may cause burns 5 Dirtandgrass clippings or other debris in cooling fins or governor parts can affect engine speed See cleaning instructions in MAINTENANCE section 6 TO PREVENT HAND OR ARM INJURY always pull starter cord rapidly to avoid kickback starting engine with a loose blade or without a blade may cause a severe kickback 7 ALWAYS KEEP HANDS AND FEET CLEAR OF MOVING OR ROTATING PARTS 8 TO PREVENT ACCIDENTAL STARTING when servicing the engine or equipment always remove the spark plug or wire from the spark plug and insert in holding tab shown on page 3 WHEN WORKING ON EQUIPMENT DO NOT STRIKE FLYWHEEL with a hard object or metal too as this may cause flywheel to shatter in operation causing personal injury or property damage To remove flywheel use Briggs amp Stratton approved tools only
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