BRIGGS STRATTON 100000 Lawn Mower Engines Instruction Manual

THE POWER WITHIN™
Operator’s Manual
Model 90000
Classic 450 Series
Sprint 475 Series
Quattro 475 Series
Model 100000
Sprint 500 Series
Quattro 500 Series
LX 500 Series
SQ 500 Series
Q 500/550 Series

Quick Start Guide
on page 4

BRIGGSandSTRATTON.com
©Copyright Briggs & Stratton Corporation
Milwaukee, Wisconsin 53201 U.S.A.
Form No. 277038-9/06
Printed in U.S.A.

Safety References

The safety alert symbol ( ****) is used to identify safety information about hazards that can result in personal injury. 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 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 to the engine.

This manual contains safety information to make you aware of the hazards and risks associated with engines. Because Briggs & Stratton does not necessarily know what equipment this engine will power, it is important that you read the instructions and the instructions for the equipment this engine powers.

SYMBOLS ASSOCIATED WITH THIS ENGINE:

WARNING
Briggs & Stratton does not approve or authorize the use of these engines on 3-wheel All Terrain Vehicles (ATVs), motor bikes, fun/recreational go-karts, aircraft products or vehicles intended for use in competitive events. Use of these engines in such applications could result in property damage, serious injury (including paralysis), or even death.
WARNING
The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
CAUTION
This engine is shipped from Briggs & Stratton without oil. If you start the engine without oil, the engine will be damaged beyond repair and will not be covered under warranty.

Know Your Engine

**** This manual contains safety information to make you aware of the hazards and risks associated with engines. Read the Operating Manual before starting your engine.

SIMPLE STEPS TO STARTING YOUR ENGINE

WHAT KIND ?
ADD OIL
High quality SAE 30 detergent oil rated SF, SG, SH or higher.
HOW MUCH ?
To FULL line on dipstick.
Engine holds about 18 oz.
HOW ?
Unscrew and remove oil cap.
Pour in oil. Replace cap.
SPECIAL CONCERNS ?
Do not overfill.
Do not tip enigine.

See page 9 for details.

ADD GAS
WHAT KIND ?
Unleaded, 85 octane or higher.
HOW MUCH ?
Fill to one inch below top of fuel fill neck
HOW ?
Remove gas cap. Pour in gas. Replace cap.
SPECIAL CONCERNS ?
Fuel equipment outdoors. If fuel spills, wait until it evaporates before starting engine.

**** See page 11 for details.

WARNING
**** Starting engine creates sparking.
Gasoline and its vapors are extremely flammable and explosive. Fire or explosion can cause severe burns or death.
If fuel spills, wait until it evaporates before starting engine.
DO NOT use pressurized starting fluids.

PUSH PRIMER
HOW MANY TIMES ?
Press 5 times the FIRST TIME you start engine.
For all future starts, press 3 times.
HOW ?
Locate primer bulb. Press with finger. Wait two seconds between each press.
SPECIAL CONCERNS ?
Pressing primer too many times can flood engine with gas. A flooded engine will not start.
See Troubleshooting section.

PULL STARTER HANDLE
HOW ?
Stand behind equipment.
Close bail, or operator control bar, on equipment with this feature. If you do not keep bail held against equipment handle, engine will not start.
Slowly pull cord until you feel resistance, then pull quickly.
SPECIAL CONCERNS ?
If speed control equipped, start in FAST position.
Also, see warning at right.

WARNING
Rapid retraction of starter cord (kickback) will pull hand and arm toward engine faster than you can let go. To avoid kickback, slowly pull the cord until you feel resistance, then pull rapidly.
Broken bones, fractures, bruises or sprains could result.
Rotating parts can contact or entangle hands, feet, hair, clothing, or accessories.
Traumatic amputation or severe laceration can result.

To Stop Engine −
Let go of brake release bar, which activates brake and stops engine from running.
**** For complete starting instructions see page 7.

Troubleshooting

Starter handle will not pull.
The proper equipment handle is not engaged which releases the brake from the flywheel allowing the engine to turn over.
Place equipment on flat level surface.

• Ensure all external equipment/engine loads are removed before starting engine. Direct coupled equipment components must be securely attached such as, but not limited to, blades, impellers, pulleys, sprockets, etc.

WARNING

Engine will not start.
Oil Level is OVER FULL mark on dipstick.

• Drain excess oil from engine to bring level to FULL mark on dipstick.
• Check air cleaner filter for oil saturation.
  If saturated, clean or replace filter.

CAUTION
DO NOT OVERFILL.
Overfilling may cause smoking, hard starting, spark plug fouling or oil saturation of air filter.

Out of Fuel

• Add gasoline.
• Prime engine.

Engine Flooded

• Set choke (if equipped) to OPEN/RUN position, place throttle (if equipped) in FAST and continue to pull starter handle.

Spark Plug Fouling

• Remove spark plug. Clean, check gap, replace. See Maintenance section.

WARNING

• Ensure fuel cap, and air cleaner are in place before starting engine.

• Before refueling − turn engine OFF and let engine cool at least 2 minutes before removing gas cap.

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

• Do not crank engine with spark plug removed.

Engine emits smoke or running rough.
Engine may have been tipped during transport.

• Check for fouled spark plug.
• Check air cleaner filter for oil saturation.
  If saturated, clean or replace filter.

CAUTION
If engine is tipped to transport equipment, to remove debris, to drain oil, etc., keep the spark plug side of engine up.

Starting

1. Check oil level. Ensure level is at FULL mark on dipstick. Use the correct oil type for expected starting temperature.

2. Fill with fresh gasoline. Move throttle to FAST. (if equipped)

3. Firmly push primer bulb 3 times.
   Note: If starting a NEW ENGINE, press 5 times.
   If engine floods, set choke to OPEN/RUN position, place throttle in FAST (if equipped) and crank until engine starts.

4. Squeeze brake release bar toward handle on mower and any other equipment with this feature.
   If you do not keep brake release bar held against mower handle, engine will not start, or remain running.

5. Grasp rope handle. Pull slowly until resistance is felt, then pull rapidly to start engine and avoid kickback.

WARNING

• Make sure spark plug, muffler, fuel cap and air cleaner are in place.
• Do not crank engine with spark plug removed.
• DO NOT start engine if there is a natural or LP gas leak in area.
• Do not use pressurized starting fluids because vapors are flammable.

WARNING

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

WARNING
Rapid retraction of starter cord (kickback) will pull hand and arm toward engine faster than you can let go. To avoid kickback, slowly pull the cord until you feel resistance, then pull rapidly.
Broken bones, fractures, bruises or sprains could result.
Rotating parts can contact or entangle hands, feet, hair, clothing, or accessories.
Traumatic amputation or severe laceration can result.

Operating

WARNING
Engines give off carbon monoxide, an odorless, colorless, poison gas.
Breathing carbon monoxide can cause nausea, fainting or death.

After engine has started, let it warm up several seconds to several minutes, depending on outside temperature.
For maximum performance and life, operate engine with throttle in FAST.

• Do not tip engine or equipment at angle which causes gasoline to spill.
• Do not choke carburetor to stop engine.

Periodically remove grass buildup under mower deck. (See Maintenance.)

WARNING

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

Stopping

CAUTION
Do not stop engine by moving choke control to CHOKE (if equipped). Backfire, fire or engine damage could occur.

[1] Move throttle (if equipped) to SLOW, then
[2] Release safety brake control handle.

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 before touching.
• Remove accumulated combustibles from muffler area and cylinder area.
• Install and maintain in working order a spark arrester before using equipment on forest-covered, grass-covered, brush-covered unimproved land. The state of California requires this (Section 4442 of the California Public Resources Code). Other states may
  have similar laws. Federal laws apply on federal land.

Oil

Oil Capacity
The engine holds approximately 18 oz. or 0.5 liter.

• Use a high quality detergent oil classified “For Service SF, SG, SH, SJ” or higher, such as Briggs & Stratton SAE 30.
• Do not use special additives.
• Choose a viscosity according to the table opposite.
  Note: Synthetic oil meeting ILSAC GF-2, API certification mark and API service symbol (shown at left) with “SJ/CF ENERGY CONSERVING” or higher, is an acceptable oil at all temperatures. Use of synthetic oil does not alter required oil change intervals.

Oil Recommendation

CAUTION

• Air cooled engines run hotter than automotive engines.
  The use of non-synthetic multi-viscosity oils (5W-30, 10W-30, etc.) in temperatures above 40° F (4° C) will result in higher than normal oil consumption. When using a multi-viscosity oil, check oil level more frequently.
  ** SAE 30 oil, if used below 40° F (4° C), will result in hard starting and possible engine bore damage due to inadequate lubrication.

Checking Oil Level

• Check oil level before starting the engine.
• Check level daily, or after every eight (8) hours.
• Keep oil level at FULL.

1. Place engine level and clean around oil fill area.
2. Remove dipstick and wipe clean with cloth.
3. Replace and tighten dipstick. Remove and check oil level. Oil level should be at FULL line on dipstick.
4. If needed, add oil slowly – recheck. Do not over fill.
5. Wipe dipstick clean, replace and tighten. Remove and check oil level. Oil level should be at FULL line on dipstick.

CAUTION
Do not overfill. Overfilling with oil may cause the engine to not start, or hard starting. If over the FULL mark on dipstick, drain oil to reduce oil level to FULL mark on dipstick.

CAUTION
Used oil is a hazardous waste product. Dispose of used oil properly. Do not discard with household waste. Check with your local authorities, service center, or dealer for safe disposal/recycling facilities.

WARNING
On bottom oil drain, DO NOT rotate blade or any other parts unless spark plug wire is disconnected from spark plug.

Fuel

Type of Fuel to Use

• Use clean, fresh, regular unleaded gasoline with a minimum of 85 octane. Fresh fuel prevents gum from forming in the fuel system or on essential carburetor parts. Purchase fuel in quantity that can be used within 30 days.
• Do not use gasoline which contains Methanol.
• Do not mix oil with gasoline.
• For engine protection use Briggs & Stratton Gasoline Additive available from your Authorized Briggs & Stratton Dealer.
• This engine is certified to operate on gasoline.
  Exhaust Emission Control System: EM (Engine Modifications).

CAUTION
Some fuels, called oxygenated or reformulated gasoline, are gasoline blended with alcohols or ethers. Excessive amounts of these blends can damage the fuel system or cause performance problems. If any undesirable operating symptoms occur, use gasoline with a lower percentage of alcohol or ether.

Adding Fuel

1. Remove cap. Fill tank to approximately 1-1/2 inches below top of neck to allow for fuel expansion. Be careful not to overfill.
   Briggs & Stratton Smart-fill® fuel can fills to the correct level and automatically shuts off, reducing spills and emissions.

2. Replace cap before starting.

WARNING

• Turn engine OFF and let engine cool at least 2 minutes before removing gas cap.
• Fill fuel tank outdoors or in well-ventilated area.
• Do not overfill fuel tank. Fill tank to approximately 1-1/2 inches below top of neck to allow for fuel expansion.
• If fuel spills, wait until it evaporates before starting engine.
• Keep gasoline away from sparks, open flames, pilot lights, heat, and other ignition sources.
• Check fuel lines, tank, cap, and fittings frequently for cracks or leaks. Replace if necessary.

Specifications

We recommend that you see an authorized Briggs & Stratton Service Dealer for all maintenance and service of the engine and engine parts. Use only genuine Briggs & Stratton parts.
This is a single cylinder, L-head, air-cooled engine. It is a low emissions engine.
In the state of California, model 90000 / 100000 engines covered in this manual are certified by the California Air Resources Board to meet emissions standards for 125 hours. Such certification does not grant the purchaser, owner or operator of this engine any additional warranties with respect to the performance or operational life of this engine. This engine is warranted solely according to the product and emissions warranties stated elsewhere in this manual.

Model 90000
Bore. . . . . . . . . . . . . . . . . . . . . . . . 2-9/16 in. (65.09 mm)
Stroke . . . . . . . . . . . . . . . . . . . . . . .1-3/4 in. (44.45 mm)
Displacement. . . . . . . . . . . . . . . . 9.02 cu. in. (147.8 cc)
Model 100000
Bore . . . . . . . . . . . . . . . . . . . . . . . .2-9/16 in. (65.09 mm)
Stroke . . . . . . . . . . . . . . . . . . . . . . .1-7/8 in. (47.63 mm)
Displacement . . . . . . . . . . . . . . . .9.67 cu. in. (158.6 cc)

Tune-up Specifications
Armature air gap . .0.006 − 0.010 in. (0.15 − 0.25 mm)
Spark plug gap . . . . . . . . . . . . . . . . .0.030 in. (0.76 mm)
Valve clearance with valve springs installed and piston 1/4 in. (6 mm) past top dead center (check when engine is cold). See Repair Manual P/N 270962.
Intake. . . . . . . . . . . . 0.005 − 0.007 in. (0.13 − 0.18 mm)
Exhaust. . . . . . . . . . 0.007 − 0.009 in. (0.18 − 0.23 mm)

Note: For practical operation, the horsepower 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). It will operate satisfactorily at an angle up to 15°.

Model, Type and Code Number
To get replacement parts or technical assistance in the future write your engine Model, Type and Code number along with the date of purchase here. These numbers are located on your engine. For the location, see Engine Features.

Technical Information
Engine Power Rating Information
The gross power rating for individual gas engine models is labeled in accordance with SAE (Society of Automotive Engineers) code J1940 (Small Engine Power & Torque Rating Procedure), and rating performance has been obtained and corrected in accordance with SAE J1995 (Revision 2002-05).
Actual gross engine power will be lower and is affected by, among other things, ambient operating conditions and engine-to-engine variability. Given both the wide array of products on which engines are placed and the variety of environmental issues applicable to operating the equipment, the gas engine will not develop the rated gross power when used in a given piece of power equipment (actual “on-site” or net horsepower). This difference is due to a 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 to manufacturing and capacity limitations, Briggs & Stratton may substitute an engine of higher rated power for this Series engine.

Emission Information

Engines that are certified to meet the California Air Resources Board (CARB) Tier 2 Emission Standards 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 engine emission label will indicate certification information.

The Emissions Durability Period describes the number of hours of actual running time for which the engine is certified to be emissions compliant, assuming proper maintenance in accordance with the Operating & 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. For example, a typical walk-behind lawn mower is used 20 to 25 hours per year. Therefore, the Emissions Durability Period of an engine with an intermediate rating would equate to 10 to 12 years.
Certain Briggs & Stratton engines will be certified to meet the United States Environmental Protection Agency (USEPA) Phase 2 emission standards. For Phase 2 certified engines, the Emissions Compliance Period referred to on the Emissions Compliance label indicates the number of operating hours for which the engine has been shown to meet Federal emission requirements.

For engines less than 225 cc displacement.
Category C = 125 hours
Category B = 250 hours
Category A = 500 hours
For engines of 225 cc or more displacement.
Category C = 250 hours
Category B = 500 hours
Category A = 1000 hours.

Maintenance

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

Emission Control
Maintenance, replacement or repair of the emission control devices and systems may be performed by any nonroad engine 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.

WARNING

Unintentional sparking can result in fire or electric shock.
Fire or explosion can cause severe burns or death.
Unintentional start-up can result in entanglement, traumatic amputation, or laceration.

Before performing adjustments or repairs:

• Disconnect spark plug wire and keep it away from spark plug.
• Disconnect battery at negative terminal (only engines with electric start).
• Do not strike the flywheel with a hammer or hard object because the flywheel may later shatter during operation.
• Do not tamper with governor spring, links or other parts to increase engine speed.

When testing for spark:

• Use approved spark plug tester.
• Do not check for spark with spark plug removed.

Follow the instructions and schedules indicated below.

Task
Perform task at hourly or calendar interval, whichever comes first.| Every 8 Hours
or Daily| 25 Hours or
Every Season| 50 Hours or
Every Season| 100 Hours or
Every Season| 100-300 Hours
---|---|---|---|---|---
Check Oil Level| | | | |
Change Oil *| | | | |
Service Foam Air Cleaner Element | | | | |
Replace Spark Plug| | | | |
Inspect Spark Arrester (if equipped)| | | | |
Clean Air Cooling System | | | | |
Clean Combustion Chamber| | | | |

• Change oil after first 5 to 8 hours of use, then every 50 hours or every season. Change oil every 25 hours when operating the engine under heavy load or in high temperatures.
  ** Clean more often under dusty conditions or when airborne debris is present. Replace air cleaner parts, if very dirty.

Air Cleaner
All engines have a foam air cleaner element.
Replace element if very dirty or damaged.

CAUTION
Air cleaner filter element must be oiled or engine damage will occur.

TO REPLACE FILTER:

• Remove screw.

• Carefully remove air cleaner to prevent debris from falling into 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 to remove excess oil.

• Install Oil-Foam element and cup, if equipped, in base.
  Note: On Style 2 air cleaner, install element so lip extends over edge of body to form protective seal when cover is assembled.

• Install air cleaner securely on carburetor with screw.

Air Cooling System
Grass or chaff may clog engine’s air cooling system, especially after prolonged service cutting tall, dry grass. Internal cooling fins and surfaces may require cleaning to prevent overheating and engine damage.

REMOVING AND RE-INSTALLING COVER/ BLOWER HOUSING

1. Remove 2 screws from cover (if equipped) and lift cover straight until tab clears.

2. Remove 3 screws and blower housing.
   Note: Do not loosen 2 band brake bracket screws. Do not bend or remove flywheel guard.

3. Clean areas shown.

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

Spark Plug
Use only Briggs & Stratton Spark Tester (part number 19368) to check for spark.

Note: In some areas, local law requires using resistor spark plug to suppress ignition signals. If this engine was originally equipped with resistor spark plug, use same type for replacement.

Combustion Deposits
We recommend that after every 100-300 hours you have an authorized Briggs & Stratton Service Dealer remove combustion deposits from the cylinder, cylinder head, top of piston, and around valves.
Muffler

WARNING
Replacement parts for the muffler must be the same and installed in the same position as the original parts, otherwise fire can occur.

Fuel System
WARNING
** Replacement parts for fuel system (cap, hoses, tanks, filters, etc.) must be the same as original parts, otherwise fire can occur.
Cleaning Debris**
Daily or before every use, clean grass, chaff or accumulated debris from engine. Keep linkage, spring and controls clean. Keep area around and behind muffler free of any combustible debris.

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

WARNING
**** Engine parts should be kept clean to reduce the risk of overheating and ignition of accumulated debris. This is especially important if cutting tall grass.

Carburetor Adjustment
The carburetor on this engine is not adjustable.
WARNING
The manufacturer of the equipment on which this engine is installed specifies top speed at which the engine will be operated. DO NOT EXCEED this speed.

Storage

Engines stored over 30 days need special attention.

1. To prevent gum from forming in fuel system or on essential carburetor parts:
   a) if fuel tank contains oxygenated or reformulated gasoline (gasoline blended with an alcohol or an ether), run engine until it stops from lack of fuel, or b) if fuel tank contains gasoline, either run engine until it stops from lack of fuel, or add a gasoline additive to the gas in the tank. (See parts list. Single-use pouches of gas additive are available from your service dealer.) If you use a gas additive, run the engine for several minutes to circulate the additive through the carburetor. Then, engine and fuel can be stored up to 24 months.

2. While engine is still warm, change oil.

3. Remove spark plug and pour about 1/2 oz. (15 ml) of engine oil into cylinder. Replace spark plug and crank slowly to distribute oil.

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

5. Store in a clean, dry area. Do not store in same area as a stove, furnace, water heater, or other appliance that uses a pilot light or has a device that can create a spark.

WARNING
When Transporting Equipment:

• Transport with fuel tank EMPTY or with fuel shut-off valve OFF.

When storing gasoline or equipment with fuel in tank:

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

Service
See an Authorized Briggs & Stratton Service Dealer.
Each one carries a stock of Genuine Briggs & Stratton Parts and is equipped with special service tools.
Trained mechanics assure expert repair service on all Briggs & Stratton engines. Only dealers advertising as “Authorized Briggs & Stratton” are required to meet Briggs & Stratton standards.
When you purchase equipment powered by a Briggs & Stratton engine, you are assured of highly skilled, reliable service at more than 30,000 Authorized Service Dealers worldwide, including more than 6,000 Master Service Technicians.
Look for these signs wherever Briggs & Stratton service is offered.

You may locate your nearest Authorized Briggs & Stratton Service Dealer in our dealer locator map on our web site www.briggsandstratton.com or in the “Yellow Pages™” directory under “Engines, Gasoline” or “Gasoline Engines,” or “Lawn Mowers” or similar category. Note: Walking fingers logo and “Yellow Pages” are registered trademarks in various jurisdictions.

PARTIAL LIST OF
GENUINE BRIGGS & STRATTON PARTS

(uses standard electric drill to remove oil from engine quickly)
An illustrated shop manual includes common specifications and detailed information covering adjustment, tune-up and repair of Briggs & Stratton single cylinder, L-head, 4 cycle engines. It is available for purchase from an Authorized Briggs & Stratton Service Dealer or you can order it from the factory.
Write:Briggs & Stratton Corporation; Attn: Service
Division; P. O. Box 1144; Milwaukee, WI 53201

Warranty Information

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 the Emissions Control System Warranty on your small off-road engine (SORE). In California, new small off-road engines model year 2006 and later must be designed, built and equipped to meet the State’s stringent anti-smog standards.
Elsewhere in the United States, new non-road, spark-ignition engines certified for model year 1997 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 has been 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 system, fuel line, muffler and catalytic converter. Also included may be connectors and other emissions related assemblies.
Where a warrantable condition exists, B&S will repair your small off-road engine at no cost to you including diagnosis, parts and labor.

Briggs & Stratton Emissions Control Defects Warranty Coverage
Small 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 will be repaired or replaced by B&S.

Owner’s Warranty Responsibilities

As the small off-road engine owner, you are responsible for the performance of the required maintenance listed in your Operating and Maintenance Instructions. B&S recommends that you retain all your receipts covering maintenance on your small off-road engine, but B&S cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance.
As the small off-road engine owner, you should however be aware that B&S may deny you warranty coverage if your small off-road engine or a part has failed due to abuse, neglect, improper maintenance or unapproved modifications.
You are responsible for presenting your small off-road engine to an Authorized B&S Service Dealer as soon as a problem exists.
The undisputed warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days.
If you have any questions regarding your warranty rights and responsibilities, you should contact a B&S Service Representative at 1-414-259-5262.
The emissions warranty is a defects warranty. Defects are judged on normal engine performance. 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 and Maintenance Instructions.

1. Warranted Parts
   Coverage under this warranty extends only to the parts listed below (the emissions control systems 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 Parts shall be free from defects in materials and workmanship which caused the failure of the Warranted Parts for a period of two years from the date the engine is  delivered to a retail purchaser.

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 defective, if the diagnostic work is performed at an Authorized B&S Service  Dealer. For emissions warranty service contact your nearest Authorized B&S Service Dealer as listed in the “Yellow Pages” under “Engines, Gasoline,” “Gasoline Engines,” “Lawn Mowers,” or similar category.

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

5. Maintenance
   Any Warranted Part which is not scheduled for replacement as required maintenance or which is scheduled only for regular inspection to the effect of “repair or replace as necessary” shall be warranted as to defects for the warranty period. Any Warranted Part which is scheduled for replacement as required maintenance shall be warranted as to defects only for the period of time up to the first scheduled replacement for that part. Any replacement part that is equivalent in performance and durability may be used in the performance of any maintenance or repairs. The owner is responsible for the performance of all required maintenance, 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 the failure of any Warranted Part still under warranty.

ABOUT YOUR ENGINE WARRANTY
Briggs & Stratton welcomes warranty repair and apologizes to you for being inconvenienced. Any Authorized Service Dealer may perform warranty repairs. Most warranty repairs are handled routinely, but sometimes requests for warranty service may not be appropriate. For example, warranty would not apply if engine damage occurred because of misuse, lack of routine maintenance, shipping, handling, warehousing or improper installation. Similarly, warranty is void if the serial number of the engine has been  removed or the engine has been altered or modified.
If a customer differs with the decision of the Service Dealer, an investigation will be made to determine whether the warranty applies. Ask the Service Dealer to submit all supporting facts to his Distributor or the Factory for review. If the Distributor or the  Factory decides that the claim is justified, the customer will be fully reimbursed for those items that are defective. To avoid misunderstanding which might occur between the customer and the Dealer, listed below are some of the causes of engine failure that the warranty does not cover.

Normal wear:
Engines, like all mechanical devices, need periodic parts service and replacement to perform well.
Warranty will not cover repair when 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 it operates, and the care it receives. Some applications, such as tillers, pumps and rotary mowers, are very often used in dusty or dirty conditions, which can cause what appears to be premature  wear. Such wear, when caused by dirt, dust, spark plug cleaning grit, or other abrasive material that has entered the engine because 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 the equipment to which the engine may be mounted. Nor does the 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 engine life. (Contact equipment manufacturer.)
3. Leaking carburetors, clogged fuel pipes, sticking valves, or other damage, caused by using contaminated or stale fuel. (Use clean, fresh, lead-free gasoline and Briggs & Stratton Fuel Stabilizer, Part No. 5041.)
4. Parts which are scored or broken because an engine was operated with insufficient or contaminated lubricating oil, or an incorrect grade of lubricating oil (check oil level daily or after every 8 hours of operation. Refill when necessary and change at  recommended intervals.) OIL GARD® may not shut down running engine. Engine damage may occur if oil level is not properly maintained. Read Operating & Maintenance Instructions.
5. Repair or adjustment of associated parts or assemblies such as clutches, transmissions, remote controls, etc., which are not manufactured by Briggs & Stratton.
6. Damage or wear to parts caused by dirt, which entered the engine because of improper air cleaner maintenance, re-assembly, or use of a non-original air cleaner element or cartridge. (At recommended intervals, clean and re-oil the Oil-Foam element or the foam pre-cleaner, and replace the cartridge.) Read Operating & Maintenance Instructions.
7. Parts damaged by over-speeding, or overheating caused by grass, debris, or dirt, which plugs or clogs the cooling fins, or flywheel area, or damage caused by operating the engine in a confined area without sufficient ventilation. (Clean fins on the cylinder, cylinder head and flywheel at recommended intervals.) Read Operating & Maintenance Instructions.
8. Engine or equipment parts broken by excessive vibration caused by a loose engine mounting, loose cutter blades, unbalanced blades or loose or unbalanced impellers, improper attachment of equipment to engine crankshaft, over-speeding or other abuse in operation.
9. A bent or broken crankshaft, caused by striking a solid object with the cutter blade of a rotary lawn mower, or excessive 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 burned starter motor windings, caused by the use of alternate fuels such as, liquified petroleum, natural gas, altered gasolines, etc.

Warranty is available only through service dealers which have been authorized by Briggs & Stratton Corporation. your nearest Authorized Service Dealer is listed in the “Yellow Pages™” of your telephone directory under “Engines, Gasoline” or “Gasoline Engines,” “Lawn Mowers,” or similar category.

BRIGGS & STRATTON ENGINE OWNER WARRANTY POLICY
Effective September 1, 2006
LIMITED WARRANTY
Briggs & Stratton Corporation will repair or replace, free of charge, any part(s) of the engine that is defective in material or workmanship or both. Transportation charges on parts submitted for repair or replacement under this warranty must be borne by  purchaser. This warranty is effective for and is subject to the time periods and conditions stated below. For warranty service, find the nearest Authorized Service Dealer in our dealer locator map 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 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 INCIDENTAL OR CONSEQUENTIAL DAMAGES ARE EXCLUDED TO THE EXTENT EXCLUSION IS PERMITTED BY LAW. Some states or countries do not allow limitations on how long an implied warranty lasts, and some states or countries do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation and exclusion may not apply to you. This warranty gives you specific legal rights and you may also have other rights which vary from state to state and country to country.

WARRANTY TERMS **

Brand / Product Type
Vanguard™
Extended Life Series™ I/C®, Intek I/C®, Intek Pro™ Kerosene Fuel Operated Engines All Other Briggs & Stratton Engines| Consumer Use
2 years
2 years
2 years
1 year
2 years| Commercial Use
2 years
1 year
180 days
90 days
90 days
---|---|---

** Engines used on Home Standby Generator applications are warranted under consumer use only.
This warranty does not apply to engines on equipment used for prime power in place of a utility.
Engines used in competitive 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 table above. “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 purposes of this warranty.
NO WARRANTY REGISTRATION IS NECESSARY TO OBTAIN WARRANTY ON BRIGGS & STRATTON PRODUCTS. SAVE YOUR PROOF OF PURCHASE RECEIPT. IF YOU DO NOT PROVIDE PROOF OF THE INITIAL PURCHASE DATE AT THE TIME WARRANTY SERVICE IS REQUESTED, THE MANUFACTURING DATE OF THE PRODUCT WILL BE USED TO DETERMINE THE WARRANTY PERIOD.

Briggs & Stratton Engines Are Made Under One Or More Of The Following Patents: Design D-247,177 (Other Patents Pending)

6,691,683
6,647,942
6,622,683
6,615,787
6,617,725
6,603,227
6,595,897
6,595,176
6,584,964
6,557,833
6,542,074| 6,520,141
6,495,267
6,494,175
6,472,790
6,460,502
6,456,515
6,382,166
6,369,532
6,356,003
6,349,688
6,347,614| 6,325,036
6,311,663
6,284,123
6,263,852
6,260,529
6,242,828
6,239,709
6,237,555
6,230,678
6,213,083
6,202,616| 6,145,487
6,142,257
6,135,426
6,116,212
6,105,548
6,347,614
6,082,323
6,077,063
6,064,027
6,040,767
6,014,808| 6,012,420
5,992,367
5,904,124
5,894,715
5,887,678
5,852,951
5,843,345
5,823,153
5,819,513
5,813,384
5,809,958| 5,803,035
5,765,713
5,732,555
5,645,025
5,642,701
5,628352
5,619,845
5,606,948
5,606,851
5,605,130
5,497,679| 5,548,955
5,546,901
5,445,014
5,503,125
5,501,203
5,497,679
5,320,795
5,301,643
5,271,363
5,269,713
5,265,700| 5,243,878
5,235,943
5,234,038
5,228,487
5,197,426
5,197,425
5,197,422
5,191,864
5,188,069
5,186,142
5,150,674| 5,138,996
5,086,890
5,070,829
5,058,544
5,040,644
5,009,208
4,996,956
4,977,879
4,977,877
4,971,219
4,895,119| 4,875,448
4,819,593
4,720,638
4,719,682
4,633,556
4,630,498
4,522,080
4,520,288
4,512,499
4,453,507
4,430,984| D 476,629
D 457,891
D 368,187
D 375,963
D 309,457
D 372,871
D 361,771
D 356,951
D 309,457
D 308,872
D 308,871
---|---|---|---|---|---|---|---|---|---|---

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