Operating & Maintenance Instructions

1 Model SeriesCovered inThis Manual28N70028770028P70028Q70028S70028U7 00310700311700312700313700 Operating & MaintenanceInstructionsModelTypeCodeMont h DayYearNote: General Model Series numbers noted above include many specific numberslike the ones on your engine. To get replacement parts or technical assistance inthe future, write your engine Model, Type, Code and date of purchase OF CONTENTSS afety3-5.. Engine Information6.. Oil7.. Fuel and Starting Information8.. Starting and Stopping9-10.. Maintenance11-13.. Adjustments14.. Parts and Service & Storage15-16.. Warranty Information17.. WARNINGB riggs & Stratton does not approve or authorize the use ofthese engines on 3-wheel All Terrain Vehicles (ATVs), motorbikes, aircraft products or vehicles intended for use incompetitive events.

2 Use of these engines in such applicationscould result in property damage, serious injury (includingparalysis), or even the USA and Canada our 24 hour hotline is1-800-233-3723 Briggs & Stratton CorporationMilwaukee, Wisconsin IN Copyright 1999 by Briggs & Stratton CorporationFORM NO. 274271-10/99271v28,31 - page 2 (Black)Screen angle and frequency: , POWER IN POWER EQUIPMENT Thank you for selecting a Briggs & Stratton engine to power your & Stratton is committed to producing a line of engines which will make your life s chores easier to perform. We have,at the same time, improved the design of our engines so they are environmentally friendly.

3 Since 1995, we have succeededin reducing smog-forming exhaust emissions from our engines by 70%. Briggs & Stratton s efforts have not stopped are also committed to designing and introducing even cleaner engines in the future, while maintaining our reputation forexcellent utility and & Stratton s environmental awareness has resulted in the engineering of the Smart-Fill gas can, featuring a spillresistant nozzle which opens only when fully inserted into the gas tank, and which shuts off automatically when the tank isfull. Because refueling spills can harm the environment, the Smart-Fill container helps preserve a stronger ecosystem byreducing this source of hope you will enjoy your new engine and equipment.

4 We welcome you to our worldwide family of Briggs & Strattonengine Wishes Always,The Employees of Briggs & Stratton CorporationLook For Relevant Emissions Durability Period and Air IndexInformation On Your Engine Emissions LabelEngines that are certified to meet the California Air Resources Board (CARB) Tier 2 Emission Standards must displayinformation regarding the Emissions Durability Period and the Air Index. Briggs & Stratton makes this information availableto the consumer on our emission Emissions Durability Period describes the number of hours of actual running time for which the engine is certified tobe emissions compliant, assuming proper Maintenance in accordance with the Operating & Maintenance Instructions .

5 Thefollowing categories are used:Moderate:Engine is certified to be emission compliant for 125 hours of actual engine running :Engine is certified to be emission compliant for 250 hours of actual engine running :Engine is certified to be emission compliant for 500 hours of actual engine running example, a typical walk-behind lawn mower is used 20 to 25 hours per year. Therefore, the Emissions DurabilityPeriod of an engine with an intermediate rating would equate to 10 to 12 Air Index is a calculated number describing the relative level of emissions for a specific engine family. The lower theAir Index, the cleaner the engine.

6 This information is displayed in graphical form on the emissions ,31 - page 3 (Black)Screen angle and frequency: , Operating ENGINE Read entire Operating & Maintenance Instructions ANDthe Instructions for the equipment this engine powers.* Failure to follow Instructions could result in serious injuryor Operating & Maintenance INSTRUCTIONSCONTAIN SAFETY INFORMATION TO Make you aware of hazards associated with engines Inform you of the risk of injury associated with those hazards, and Tell you how to avoid or reduce the risk of safety alert symbol () is used to identify safetyinformation about hazards that can result in personal signal word (DANGER, WARNING, or CAUTION) isused with the alert symbol to indicate the likelihood and thepotential severity of injury.

7 In addition, a hazard symbolmay be used to represent the type of indicates a hazard which, if notavoided, will result in death or serious indicates a hazard which, if notavoided, could result in death or serious indicates a hazard which, if notavoided, might result in minor or , when used without the alert symbol,indicates a situation that could result in damageto the SYMBOLS AND MEANINGSE xplosionToxic FumesMoving PartsShockHot SurfaceKickbackFireWARNINGThe engine exhaust from this prod-uct contains chemicals known to theState of California to cause cancer,birth defects, or other reproductiveharm.

8 * Briggs & Stratton does not necessarily know what equipment this engine will power. For that reason, you should carefullyread and understand the Operating Instructions for the equipment on which your engine is ,31 - page 4 (Black)Screen angle and frequency: , and its vapors are extremely flammableand or explosion can cause severe burns or 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 approximately1-1/2 inches below top of neck to allow for fuelexpansion.

9 Keep gasoline away from sparks, open flames,pilot lights, heat, and other ignition sources. Check fuel lines, tank, cap, and fittings frequentlyfor cracks or leaks. Replace if 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 Operating EQUIPMENT Do not tip engine or equipment at angle whichcauses gasoline to spill. Do not choke carburetor to stop TRANSPORTING EQUIPMENT Transport with fuel tank EMPTY or with fuel shut-offvalve STORING GASOLINE OR EQUIPMENTWITH FUEL IN TANK Store away from furnaces, stoves, water heaters orother appliances that have pilot light or otherignition source because they can ignite sparking can result in fire or start-up can result in entanglement,traumatic amputation, or PERFORMING ADJUSTMENTS ORREPAIRS Disconnect spark plug wire and keep it away fromspark plug.

10 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 engine creates can ignite nearby flammable 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 ,31 - page 5 (Black)Screen angle and frequency: , give off carbon monoxide, an odorless,colorless, poison 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 engines produce heat.