BRIGGS STRATTON 090000 Performance Of Petrol Engines User Manual

: June 9, 2024
: BRIGGS STRATTON

BRIGGS STRATTON 090000 Performance Of Petrol Engines

General Information

This manual contains safety information so that you will know the hazards and risks related to this engine and how to prevent them. It also contains instructions for the correct use and maintenance of the engine. Because Briggs & Stratton does not know what equipment this engine will power, it is important that you read, understand, and obey these instructions. Save these original instructions for future reference.

NOTE: The figures and illustrations in this manual are for reference only and can be different from your model. If you need help, contact an Authorized Service Dealer.

For replacement parts or technical help, record the date of purchase, engine model, type, trim, and the engine serial number. These numbers are located on your engine.
Refer to the Features and Controls section.

Date of Purchase|
---|---
Engine Model – Type – Trim|
Engine Serial Number|

European Office Contact Information

For questions related to European emissions, contact our European office at:
Max-Born-Straße 2, 68519 Viernheim, Germany.

European Union (EU) Stage V (5): Carbon Dioxide (CO2) Values

Enter CO2 in the search window on BriggsandStratton.com to find carbon dioxide values of Briggs & Stratton EU Type-Approval Certificate engines.

Recycling Information

| | Recycle all cartons, boxes, used oil, and batteries as specified by government regulations.
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Operator Safety

Safety Alert Symbol and Signal Words

The safety alert symbol identifies safety information about hazards that could result in personal injury. A signal word (DANGER, WARNING, or CAUTION) is used to indicate the likelihood and the potential severity of injury. In addition, a hazard symbol is 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, could result in minor or moderate injury.
NOTICE indicates information considered important but not hazard-related.
Hazard Symbols and Meanings

| Safety information about hazards that can result in personal injury.| | Read and understand the Operator’s Manual before operating or servicing the unit.
---|---|---|---
| Fire Hazard| | Explosion Hazard
| Shock Hazard| | Toxic Fume Hazard
| Hot Surface Hazard| | Noise Hazard – Ear protection recommended for extended use.
| Thrown Object Hazard – Wear eye protection.| | Explosion Hazard
| Frostbite Hazard| | Kickback Hazard
| Amputation Hazard – Moving Parts| | Chemical Hazard
| Thermal Heat Hazard| | Corrosive Hazard

Safety Messages

WARNING
Briggs & Stratton® Engines are not designed for and are not to be used to power: fun-karts; go-karts; children’s, recreational, or sport all-terrain vehicles (ATVs); motorbikes; hovercraft; aircraft products; or vehicles used in competitive events not sanctioned by Briggs & Stratton. For information about competitive racing products, see
www.briggsracing.com. For use with utility and side-by-side ATVs, please contact Briggs & Stratton Power Application Center, 1-866-927-3349. Incorrect engine use could result in serious injury or death.

WARNING
Fuel and its vapors are flammable and explosive. Fire or explosion could result in burns or death.
When you add fuel

Stop the engine. Before you remove the fuel cap, wait a minimum of two (2) minutes to make sure that the engine is cool.
Fill the fuel tank outdoors or in an area that has good airflow.
Do not put too much fuel in the tank. For expansion of the fuel, do not fill above the bottom of the fuel tank neck.
Keep fuel away from sparks, open flames, pilot lights, heat, and other ignition sources.
Frequently examine the fuel lines, fuel tank, fuel cap, and connections for cracks or leaks. Replace damaged parts.
If fuel spills, wait until it dries before you start the engine.

When you start the engine

Make sure that the spark plug, muffler, fuel cap and air cleaner (if equipped) are correctly installed.
Do not crank the engine with the spark plug removed.
If the engine is flooded, set the choke (if equipped) to the OPEN or RUN position. Move the throttle (if equipped) to the FAST position and crank until the engine starts.
If there is natural or LP gas leakage in the area, do not start the engine.
Because vapors are flammable, do not use pressurized starter fluids.

When you operate the equipment

Do not tilt the engine or the equipment at an angle which causes fuel to spill.
Do not choke the carburetor (if equipped) to stop the engine.
Do not start or operate the engine with the air cleaner (if equipped) or the air filter (if equipped) removed.

When you do maintenance

If you drain the oil from the top oil fill tube, the fuel tank must be empty. If it is not empty, fuel leakage can occur and could result a fire or an explosion.
During maintenance if it is necessary to tilt the unit, make sure that the fuel tank, if mounted on the engine, is empty and that the spark plug side is up. If the fuel tank is not empty, leakage can occur and could result a fire or an explosion.
Frequently examine the fuel lines, fuel tank, fuel cap, and connections for cracks or leaks. Replace damaged parts.
Do not change the governor spring, links or other parts to increase engine speed.
Do not hit the flywheel with a hammer or hard object. This could result in failure of the flywheel during operation.
Replacement parts must be of the same design and installed in the same position as the original parts. Other parts could result in damage or an injury.

When you move the location of equipment

Make sure that the fuel tank is EMPTY or that the fuel shut-off valve is in the CLOSED position.

When fuel or equipment is in storage with fuel in the fuel tank

Because pilot lights or other ignition sources can cause explosions, keep fuel or equipment away from furnaces, stoves, water heaters or other appliances that have pilot lights.

WARNING
Fuel and its vapors are flammable and explosive. Fire or explosion could result in burns or death.
Engine start-up causes spark that could result in a fire or explosion.

If there is natural or LP gas leakage in the area, do not start the engine.
Because vapors are flammable, do not use pressurized starter fluids.

WARNING
POISONOUS GAS HAZARD. Engine exhaust contains carbon monoxide, a poisonous gas that could kill you in minutes. Although you do not smell exhaust fumes, you could still be exposed to dangerous carbon monoxide gas. If you feel sick, dizzy, or weak while you use this product, get to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide poisoning.

Carbon monoxide gas can collect in occupied spaces. To reduce the risk of carbon monoxide gas, ONLY operate this product outdoors and far away from windows, doors and vents.
Install battery-operated carbon monoxide alarms or plug-in carbon monoxide alarms with battery back-up as specified by the manufacturer’s instructions.
Smoke alarms cannot sense carbon monoxide gas.
DO NOT operate this product in homes, garages, basements, crawlspaces, sheds, or other closed spaces, even if you use fans or open doors and windows for ventilation. After the operation of this product, carbon monoxide can quickly collect in these spaces and stay for hours.
ALWAYS put this product downwind and point the engine exhaust away from occupied spaces.

WARNING
Rotating parts can entangle hands, feet, hair, clothing, or accessories and result in traumatic amputation or laceration.

Operate equipment with the guards correctly installed.
Keep hands and feet away from rotating parts.
Remove jewelry and make sure that long hair is away from all rotating parts.
Do not wear loose clothes or items that could become caught.

WARNING
During operation, the engine and muffler become hot. If you touch a hot engine, thermal burns can occur.
Combustible materials, such as leaves, grass and brush, can catch fire.

Before you touch the engine or muffler, stop the engine and wait two (2) minutes. Make sure that the engine and muffler are safe to touch.
Remove debris from the muffler and engine.

It is a violation of California Public Resource Code, Section 4442, to use or operate the engine on any forest-covered, brush-covered, or grass-covered land unless the exhaust system is equipped with a spark arrester, as defined in section 4442, maintained in effective working order. Other states or federal jurisdictions may have similar laws; reference Federal Regulation 36 CFR Part 261.52. Contact the original equipment manufacturer, retailer, or dealer to obtain a spark arrester designed for the exhaust system installed on this engine.

WARNING
Accidental engine spark can cause an electric shock or fire and could result in entanglement, traumatic amputation or laceration.
Before you make adjustments or repairs:

Disconnect the spark plug wire and keep it away from the spark plugs.
Disconnect the battery wire from the negative battery terminal (only engines with electric start).
Use only the correct tools.

When you check for spark:

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

WARNING
Fuel vapors are flammable and explosive. Fire or explosion could result in burns or death.
If you smell gas

Do not start the engine.
Do not switch on electrical switches.
Do not use a phone in the vicinity.
Evacuate the area.
Contact the gas supplier or the fire department.

WARNING
Incorrect use of the battery and charger could result in an electrical shock or fire.

Operation

Keep the battery charger dry. Do not let the battery pack get wet.
To decrease the risk of electrical shock, do not let water flow into the AC plug.
Do not put an object into the battery contacts. This will short-circuit the battery.

When you charge the battery pack

Only use Briggs & Stratton battery chargers.
Do not use the Briggs & Stratton battery charger on other types of batteries.
Keep the battery charger dry. Do not let the battery pack get wet.
To decrease the risk of damage to the electric plug and cord, pull the plug, not the cord, when you disconnect the charger.
If the charger has a damaged plug or cord, do not use it. The supply cord cannot be replaced. A damaged charger must be replaced immediately.
If the charger is damaged do not use it. The charger is not serviceable and must be replaced.
Do not disassemble or try to repair the charger.
To prevent electric shock, disconnect the charger from the outlet before you clean it.
Do not put an object into the battery contacts. This will short-circuit the battery.
All persons or children with decreased abilities (physical, sensory, mental) must not use the charger unless looked after by an adult.

Extension cord

Use of an incorrect extension cord could result in an electric shock or fire. If you use an extension cord, make sure that:

The pins on the plug of the extension cord are the same number, size, and shape as those of the plug on the charger;
The extension cord is correctly connected and in good electrical condition; and
For the correct AC ampere rating of the charger, make sure that the wire size is a minimum of 16 AWG.

When you keep the battery pack in storage

Keep the battery charger dry. Do not let the battery pack get wet.

Before you make adjustments or repairs

Models with portable battery pack: Remove the battery pack from the battery tray.
Models with integrated battery pack: Disconnect the wire harness from the starter motor.

WARNING
Battery chemicals are poisonous and can cause corrosion.
Fire or explosion could result in burns or death.

Electrical Shock

Do not burn used battery packs. Explosions, poisonous fumes and dangerous materials can occur.
Do not use a damaged battery.

Features and Controls

Engine Controls

Compare the callout letters in Figures 1, 2, and 3 to the engine controls in the list that follows:

A. Engine Identification Numbers Model – Type – Code
B. Spark Plug
C. Muffler, Muffler Guard (optional), Spark Arrester (if equipped)
D. Electric Starter
E. Dipstick
F. Lithium-Ion Portable Battery Pack
G. Air Intake Grille
H. Fuel Tank and Cap
I. Air Cleaner
J. Throttle Control (if equipped)
K. Battery Charger – Portable Battery Pack
L. Fuel Shut-off (if equipped)
M. Lithium-Ion Integrated Battery Pack
N. Cable and Charger – Integrated Battery Pack

Engine Control Symbols and Meanings

| Engine Speed – FAST| | Engine Speed – SLOW
---|---|---|---
| Engine Speed – STOP| | ON – OFF
| Engine Start Choke CLOSED| | Engine Start Choke OPEN
| Fuel Cap Fuel Shut-off OPEN| | Fuel Shut-off CLOSED
| Fuel Level – Maximum Do Not Overfill| |

Battery Control Symbols and Meanings

| Volt| | Ampere
---|---|---|---
| Double Insulated| | Alternating Current
| Direct Current| | Underwriters Laboratories, Inc. US & Canada Listed Product
| Underwriters Laboratories, Inc. Registered Product| | Hertz
| Correctly Recycle Battery| | Charge Battery Pack
Hazard Symbols and Meanings | Remove Key / Battery Pack

Operation

Oil Recommendations

Oil Capacity: See the Specifications section.

NOTICE
This engine was shipped from Briggs & Stratton without oil. Equipment manufacturers or dealers could have added oil to the engine. Before you start the engine for the first time, make sure that the oil is at the correct level. Add oil as specified by the instructions in this manual. If you start the engine without oil, damage will occur and the engine will not be repaired under warranty.

We recommend the use of Briggs & Stratton® Warranty Certified oils for best performance. Other high-quality detergent oils are permitted if classified for service SF, SG, SH, SJ or higher. Do not use special additives. Use the chart to select the best viscosity for the outdoor temperature range expected.
Engines on most outdoor power equipment operate well with 5W-30 Synthetic oil. For equipment operated in hot temperatures, Vanguard® 15W-50 Synthetic oil gives the best protection.

A| SAE 30 – Below 40 °F (4 °C) the use of SAE 30 will result in hard starting.
---|---
B| 10W-30 – Above 80 °F (27 °C) the use of 10W-30 may cause increased oil consumption. Check the oil level frequently.
C| 5W-30
D| Synthetic 5W-30
E| Vanguard ® Synthetic 15W-50

Check the Oil Level

Before you check or add oil

Make sure the engine is level.
Clean the oil fill area of debris.
Refer to the Specifications section for oil capacity.

NOTICE
This engine was shipped from Briggs & Stratton without oil. Equipment manufacturers or dealers could have added oil to the engine. Before you start the engine for the first time, make sure that the oil is at the correct level. Add oil as specified by the instructions in this manual. If you start the engine without oil, damage will occur and the engine will not be repaired under warranty.

Remove the dipstick (A, Figure 4) and clean with a cloth.
Install and tighten the dipstick (A, Figure 4).
Remove the dipstick and check the oil level. Make sure that the oil level is at the top of the full indicator (B, Figure 4) on the dipstick.
If the oil level is low, slowly add oil into the engine oil fill (C, Figure 4). Do not add too much oil.
Wait one minute and check the oil level again. Make sure that the oil level is correct.
Install and tighten the dipstick (A, Figure 4).

Low Oil Protection System (if installed)

A low oil sensor is installed on some engines. If the oil is low, the sensor will show a warning light or stop the engine. Stop the engine and do the steps that follow before you start the engine.

Make sure that the engine is level.
Do an oil check. Refer to the Check Oil Level section.
If the oil level is low, add the correct amount of oil. Start the engine and make sure that the warning light (if installed) does not come on.
If the oil level is not low, do not start the engine. Contact a Briggs & Stratton Authorized Service Dealer to correct the oil problem.

Fuel Recommendations

Fuel must meet these requirements:

Clean, fresh, unleaded gasoline.
A minimum of 87 octane/87 AKI (91 RON). High altitude use, see below.
Gasoline with up to 10% ethanol (gasohol) is permitted.

NOTICE
Do not use unapproved gasoline, such as E15 and E85. Do not mix oil in gasoline or change the engine to operate on alternate fuels. Use of unapproved fuels could result in damage to engine components, which will not be repaired under the warranty.

To protect the fuel system from gum formation, and corrosion, mix an alcohol- free fuel stabilizer and ethanol treatment into the fuel. Refer to the Storage section. All fuel is not the same. If start or performance problems occur, change fuel providers or brands. This engine is certified to operate on gasoline. The emissions control system for carbureted engines is EM (Engine Modifications). The emissions control systems for engines with electronic fuel injection are ECM (Engine Control Module), MPI (Multi Port Injection), and if equipped an O2S (Oxygen Sensor).

High Altitude
At altitudes over 5,000 feet (1524 meters), a minimum 85 octane/85 AKI (89 RON) gasoline is permitted.
For carbureted engines, high altitude adjustment is required to maintain performance.
Operation without this adjustment will cause decreased performance, increased fuel consumption, and increased emissions. Contact a Briggs & Stratton Authorized Service Dealer for high altitude adjustment information. Operation of the engine at altitudes below 2,500 feet (762 meters) with the high altitude adjustment is not recommended.
For Electronic Fuel Injection (EFI) engines, no high altitude adjustment is necessary.

Add Fuel

WARNING
Fuel and its vapors are flammable and explosive. Fire or explosion could result in burns or death.
When you add fuel

Stop the engine. Before you remove the fuel cap, wait a minimum of two (2) minutes to make sure that the engine is cool.
Fill the fuel tank outdoors or in an area that has good airflow.
Do not put too much fuel in the tank. For expansion of the fuel, do not fill above the bottom of the fuel tank neck.
Keep fuel away from sparks, open flames, pilot lights, heat, and other ignition sources.
Frequently examine the fuel lines, fuel tank, fuel cap, and connections for cracks or leaks. Replace damaged parts.
If fuel spills, wait until it dries before you start the engine.

Clean the fuel cap area of dirt and debris. Remove the fuel cap.
Fill the fuel tank (A, Figure 5) with fuel. Because fuel will expand, do not fill above the bottom of the fuel tank neck (B).
Install the fuel cap.

Charge the Battery Pack

WARNING
Incorrect use of the battery and charger could result in an electrical shock or fire.
When you charge the battery pack

Only use Briggs & Stratton battery chargers.
Do not use the Briggs & Stratton battery charger on other types of batteries.
Keep the battery charger dry. Do not let the battery pack get wet.
To decrease the risk of damage to the electric plug and cord, pull the plug, not the cord, when you disconnect the charger.
If the charger has a damaged plug or cord, do not use it. The supply cord cannot be replaced. A damaged charger must be replaced immediately.
If the charger is damaged do not use it. The charger is not serviceable and must be replaced.
Do not disassemble or try to repair the charger.
To prevent electric shock, disconnect the charger from the outlet before you clean it.
Do not put an object into the battery contacts. This will short-circuit the battery.
All persons or children with decreased abilities (physical, sensory, mental) must not use the charger unless looked after by an adult.

Extension cord

Use of an incorrect extension cord could result in an electric shock or fire. If you use an extension cord, make sure that:
1. The pins on the plug of the extension cord are the same number, size, and shape as those of the plug on the charger;
2. The extension cord is correctly connected and in good electrical condition; and
3. For the correct AC ampere rating of the charger, make sure that the wire size is a minimum of 16 AWG.

When to Charge the Battery Pack
First Time Portable Battery Pack – The Lithium‐Ion portable battery pack was not fully charged before shipment. To keep charge and to prevent damage while in storage, the battery pack is programed to go into “sleep mode.” A quick charge of approximately ten (10) seconds is necessary to wake-up the battery. Keep the battery pack in the charger until fully charged. To charge the battery pack, refer to the How to Charge the Battery Pack section.

As Necessary – To check available charge, push the button on the Battery Fuel Gauge (E, Figure 6 7). Refer to Battery Fuel Gauge section.
Storage – For storage periods more than 3 months, fully charge the battery pack before storage.

How to Charge the Battery Pack

NOTE: Keep the battery charger dry. DO NOT get the battery pack wet.

Connect the battery charger (F, Figure 8 9) to an electrical outlet.
Portable Battery Pack: Put the portable battery pack (G, Figure 8) tightly into the battery charging bay (F). If the RED charging light does not show, remove the battery pack and install it again. Make sure that the battery pack is tightly in the battery charging bay.
- RED light (A, Figure 6) shows the battery pack charges correctly.
- GREEN light (B) shows the battery pack is fully charged.
- Flashing RED light (C) shows that the battery pack is too hot or too cold and will not accept a charge. Keep the battery pack connected. When the battery pack is at the correct operating temperature, it charges automatically. Refer to the Specifications section for the correct operating temperature.
- Flashing RED / GREEN lights (D) show that the battery pack does not have a charge and you must replace it.
Portable Battery Pack: From “sleep mode”, the battery will wake-up in approximately ten (10) seconds.
Portable Battery Pack: A discharged battery pack will fully charge in approximately one (1) hour. The battery pack will stay fully charged if kept on the charger.
Portable Battery Pack: When the GREEN light shows that the battery pack is fully charged, remove the battery pack from the charger.
Integrated Battery Pack: Connect the charger plug (G, Figure 9) to the engine.
Integrated Battery Pack: A discharged battery pack will fully charge in approximately four (4) hours.
Integrated Battery Pack: When the GREEN light shows that the battery pack is fully charged, remove the battery pack from the charger.
To check available charge, push the button on the Battery Fuel Gauge (E, Figure 6 7).The display lights (H) show the percentage of available charge in the battery. pack.
When the battery pack is not in operation, disconnect the battery charger from the electrical outlet

Battery Fuel Gauge

To check available charge, push the button on the Battery Fuel Gauge (E, Figure 6 7).
The display lights (H) show the percentage of available charge in the battery. pack.

Display Lights	Available Charge
Four Lights	75% to 100%
Three Lights	50% to 75%
Two Lights	25% to 50%
One Light	10% to 25%
Flashing Light	Low

Integrated Battery Pack: When connected to the charger, if all display lights are OFF, then the battery is fully charged. Disconnect the charger.

Start the Engine

WARNING
Incorrect use of the battery and charger could result in an electrical shock or fire.

Operation

Keep the battery charger dry. Do not let the battery pack get wet.
To decrease the risk of electrical shock, do not let water flow into the AC plug.
Do not put an object into the battery contacts. This will short-circuit the battery.

When you charge the battery pack

Only use Briggs & Stratton battery chargers.
Do not use the Briggs & Stratton battery charger on other types of batteries.
Keep the battery charger dry. Do not let the battery pack get wet.
To decrease the risk of damage to the electric plug and cord, pull the plug, not the cord, when you disconnect the charger.
If the charger has a damaged plug or cord, do not use it. The supply cord cannot be replaced. A damaged charger must be replaced immediately.
If the charger is damaged do not use it. The charger is not serviceable and must be replaced.
Do not disassemble or try to repair the charger.
To prevent electric shock, disconnect the charger from the outlet before you clean it.
Do not put an object into the battery contacts. This will short-circuit the battery.
All persons or children with decreased abilities (physical, sensory, mental) must not use the charger unless looked after by an adult.

Extension cord

Use of an incorrect extension cord could result in an electric shock or fire. If you use an extension cord, make sure that:
1. The pins on the plug of the extension cord are the same number, size, and shape as those of the plug on the charger;
2. The extension cord is correctly connected and in good electrical condition; and
3. For the correct AC ampere rating of the charger, make sure that the wire size is a minimum of 16 AWG.

When you keep the battery pack in storage

Keep the battery charger dry. Do not let the battery pack get wet.

Before you make adjustments or repairs

Models with portable battery pack: Remove the battery pack from the battery tray.
Models with integrated battery pack: Disconnect the wire harness from the starter motor.

WARNING
Fuel and its vapors are flammable and explosive. Fire or explosion could result in burns or death.

When you start the engine

Make sure that the spark plug, muffler, fuel cap and air cleaner (if equipped) are correctly installed.
Do not crank the engine with the spark plug removed.
If the engine is flooded, set the choke (if equipped) to the OPEN or RUN position. Move the throttle (if equipped) to the FAST position and crank until the engine starts.
If there is natural or LP gas leakage in the area, do not start the engine.
Because vapors are flammable, do not use pressurized starter fluids.

WARNING
POISONOUS GAS HAZARD. Engine exhaust contains carbon monoxide, a poisonous gas that could kill you in minutes. Although you do not smell exhaust fumes, you could still be exposed to dangerous carbon monoxide gas. If you feel sick, dizzy, or weak while you use this product, get to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide poisoning.

Carbon monoxide gas can collect in occupied spaces. To reduce the risk of carbon monoxide gas, ONLY operate this product outdoors and far away from windows, doors and vents.
Install battery-operated carbon monoxide alarms or plug-in carbon monoxide alarms with battery back-up as specified by the manufacturer’s instructions.
Smoke alarms cannot sense carbon monoxide gas.
DO NOT operate this product in homes, garages, basements, crawlspaces, sheds, or other closed spaces, even if you use fans or open doors and windows for ventilation. After the operation of this product, carbon monoxide can quickly collect in these spaces and stay for hours.
ALWAYS put this product downwind and point the engine exhaust away from occupied spaces.

NOTICE
This engine was shipped from Briggs & Stratton without oil. Equipment manufacturers or dealers could have added oil to the engine. Before you start the engine for the first time, make sure that the oil is at the correct level. Add oil as specified by the instructions in this manual. If you start the engine without oil, damage will occur and the engine will not be repaired under warranty.

NOTE: Your equipment could have remote controls. Refer to the equipment manual for location and operation of remote controls

Check the Engine Oil. See Check Oil Level section.
Models with Portable Battery Pack: Put the battery pack (B, Figure 10) in the engine battery tray on top of the engine. Make sure that the battery pack is safely installed. The battery pack can represent equipment key in some instances.

NOTE: Models with Portable Battery Pack: To wake-up a new battery, a First Time quick charge of approximately ten (10) seconds is required. See When to Charge the Battery Pack section.

Make sure that the equipment drive controls, if equipped, are disengaged.
Move the fuel shut-off valve (D, Figure 11), if equipped, to the OPEN position.
Move the throttle control (A, Figure 11), if equipped, to the FAST position. Operate the engine in the FAST position.
Models with Electric Start Switch: Hold the engine stop lever (C, Figure 12), if equipped, against the handle. Move the electric start switch to the START position.
See the equipment manual for the location and operation of the electric start switch.
Models without Electric Start Switch: Hold the engine stop lever (C, Figure 12) against the handle. The engine will automatically start. See the equipment manual for operation of the engine stop lever.

NOTICE To extend the life of the starter, use short starting cycles (five seconds maximum). Wait one minute between starting cycles.

Models with Portable Battery Pack: If the engine will not crank and the battery pack display lights flash, then the battery pack temperature is too hot or the current draw is too high. All four battery display lights (H, Figure 13) will flash a warning for 10 seconds. The battery pack does not have a fuse, but will automatically reset after 10 seconds. If battery pack temperature is too hot (over 140°F, 60°C), remove the battery and let it cool. To prevent too much current draw on lawnmowers, keep the mower housing clean of accumulated grass and debris.

NOTE: If the engine does not start after 2-3 attempts, contact your local dealer or go to BRIGGSandSTRATTON.COM or call 1-800-444-7774 (in USA).

Stop the Engine

Engine Stop Lever, if equipped: Release the engine stop lever (E, Figure 14).
Throttle Control, if equipped with stop feature: Move the throttle control (A, Figure 15) to the OFF or STOP position.
Electric Start Switch, if equipped: Move the electric start switch to the OFF or STOP position. See the equipment manual for the location and operation of the switch. Remove the key and keep it in a safe location out of reach of children.
After the engine stops, move the fuel shut-off valve (D, Figure 16) to the CLOSED position.
Models with Portable Battery Pack: Remove the battery pack. The battery pack can represent equipment key in some instances.

Maintenance

Maintenance Information

WARNING
During maintenance if it is necessary to tilt the unit, make sure that the fuel tank, if mounted on the engine, is empty and that the spark plug side is up. If the fuel tank is not empty, leakage can occur and could result in a fire or an explosion. If the engine is tilted in a different direction, it will not easily start because of oil or fuel contamination of the air filter or the spark plug.

We recommend that you see a Briggs & Stratton Authorized Service Dealer for all maintenance and servicing of the engine and engine parts.
NOTICE
All the components used to build this engine must remain in place for correct operation.

WARNING
Accidental engine spark can cause an electric shock or fire and could result in entanglement, traumatic amputation or laceration.

Before you make adjustments or repairs:

Disconnect the spark plug wire and keep it away from the spark plug.
Models with portable battery pack: Remove the battery pack from the battery tray. On some applications, the battery pack may be the equipment key.
Models with integrated battery pack: Disconnect the wire harness from the starter motor.
Use only the correct tools.

When you check for spark:

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

Maintenance Schedule

First 5 Hours

• Change the oil (not necessary on models labeled Just Check & Add™ and No Oil Changes ).
Every 8 Hours or Daily
• Check the engine oil level.

• Clean the area around muffler and controls.

• Clean the air intake grille.

Every 25 Hours or Annually
• Clean the air filter 1.

• Clean the pre-cleaner (if installed) 1.

Every 50 Hours or Annually
• Change engine oil (not necessary on models labeled Just Check & Add ™ and No Oil Changes ).
Annually
• Replace the spark plug(s).

• Replace the air filter.

• Replace the pre-cleaner (if installed).

• Service the cooling system 1.

• Check the valve clearance 2.

1 Clean more frequently in dusty conditions or when many particles are in the air.
2 Not necessary unless engine performance problems occur.

Carburetor and Engine Speed

Do not make adjustments to the carburetor or engine speed. The carburetor was set at the factory to operate satisfactorily in most conditions. Do not change the governor spring, linkages, or other parts to adjust the engine speed. If adjustments are necessary, contact a Briggs & Stratton Authorized Service Dealer for servicing.

NOTICE
The equipment manufacturer specifies the maximum speed for the engine as installed on the equipment. Do not exceed this speed. If you are not sure what the equipment maximum speed is, or what the engine speed is set to from the factory, contact a Briggs & Stratton Authorized Service Dealer for assistance. For safe and correct operation of the equipment, the engine speed should only be adjusted by a qualified service technician.

Servicing the Spark Plug

Check the spark plug gap (A, Figure 17) with a wire gauge (B). If necessary, set the spark plug gap. Install and tighten the spark plug to the correct torque. For gap and torque specifications, refer to the Specifications section.

NOTE: In some areas, it is mandatory by local law that you use a resistor spark plug to decrease ignition signals. If a resistor spark plug was installed by the equipment manufacturer, use the same type for replacement.

Servicing the Exhaust System

WARNING
During operation, the engine and muffler become hot. If you touch a hot engine, thermal burns can occur.
Combustible materials, such as leaves, grass and brush, can catch fire.

Before you touch the engine or muffler, stop the engine and wait two (2) minutes. Make sure that the engine and muffler are safe to touch.
Remove debris from the muffler and engine.

It is a violation of California Public Resource Code, Section 4442, to use or operate the engine on any forest-covered, brush-covered, or grass-covered land unless the exhaust system is equipped with a spark arrester, as defined in section 4442, maintained in effective working order. Other states or federal jurisdictions may have similar laws; reference Federal Regulation 36 CFR Part 261.52. Contact the original equipment manufacturer, retailer, or dealer to obtain a spark arrester designed for the exhaust system installed on this engine.

Remove debris from the muffler and cylinder area. Inspect the muffler for cracks, corrosion, or other damage. Remove the deflector or the spark arrester, if equipped, and inspect for damage or carbon blockage. If damage is found, install the replacement parts before you operate the equipment.

WARNING
Replacement parts must be of the same design and installed in the same position as the original parts. Other parts could result in damage or an injury.

Change Engine Oil

WARNING
Fuel and its vapors are flammable and explosive. Fire or explosion could result in burns or death.

During operation, the engine and muffler become hot. If you touch a hot engine, thermal burns can occur.

If you drain the oil from the top oil fill tube, the fuel tank must be empty. If it is not empty, fuel leakage can occur and cause a fire or an explosion.
Before you touch the engine or muffler, stop the engine and wait two (2) minutes. Make sure that the engine and muffler are safe to touch.

Used oil is a hazardous waste product and must be discarded of correctly. Do not discard with household waste. Contact your local authorities, service center, or dealer for safe disposal or recycling facilities.

For Just Check & Add™ models, an oil change is not necessary. If an oil change is necessary, refer to the procedure that follows.

Remove Oil

NOTE: The oil must be drained from the top of the oil fill tube.

With engine off but warm, disconnect the spark plug wire (D, Figure 1) and keep it away from the spark plug (E).
Models with Integrated Battery: Disconnect the wire harness (F, Figure 19) from the electric starter.
Remove the dipstick (A, Figure 20).
When you drain the oil from the top oil fill tube (C, Figure 21), keep the spark plug (E) end of the engine up. Drain the oil into an approved container.

WARNING
When you drain the oil from the top oil fill tube, the fuel tank must be empty. If it is not empty, fuel leakage can occur and could result in a fire or an explosion. Operate the engine until the fuel tank is empty.

Add Oil

Make sure the engine is level.
Clean the oil fill area of all debris.
Refer to the Specifications section for oil capacity.

Remove the dipstick (A, Figure 22). Remove oil from the dipstick with a clean cloth.
Slowly add oil into the engine oil fill (C, Figure 22). Do not put too much oil in the engine oil fill. Wait one minute and then check the oil level.
NOTE: Do not add oil at the quick oil drain, if equipped.
Install and tighten the dipstick (A, Figure 22).
Remove the dipstick and check the oil level. The correct oil level is at the top of the full indicator (B, Figure 22) on the dipstick.
Install and tighten the dipstick (A, Figure 22).
Connect the spark plug wire(s) to the spark plug(s). See Remove Oil section.

Servicing the Air Filter

WARNING
Fuel vapors are flammable and explosive. Fire or explosion could result in burns or death.

Do not start and operate the engine with the air cleaner assembly (if equipped) or the air filter (if equipped) removed.

NOTICE
Do not use pressurized air or solvents to clean the filter. Pressurized air could result in damage to the filter and solvents will dissolve the filter.
See the Maintenance Schedule for service requirements.

Different models will use a foam or a paper filter. Some models could also have an optional pre-cleaner that can be washed and used again. Compare the illustrations in this manual with the type installed on your engine and service as follows.

Paper Air Filter

Open the cover (B, Figure 23).
Remove the air filter (C, Figure 23).
Remove the pre-cleaner (E, Figure 23), if equipped, from the air filter (C, Figure 23).
To loosen debris, lightly tap the air filter (C, Figure 23) on a hard surface. If the filter
is dirty, replace it with a new filter.
Clean the pre-cleaner (E, Figure 23), in liquid detergent and water. Let the precleaner (E) fully air dry. DO NOT lubricate the pre-cleaner.
Assemble the dry pre-cleaner (E, Figure 23) to the air filter (C).
Install the air filter (C, Figure 23).
Close the cover (B, Figure 23).

Servicing the Cooling System

WARNING
During operation, the engine and muffler become hot. If you touch a hot engine, thermal burns can occur.

Combustible debris, such as leaves, grass, and brush can catch fire.

Before you touch the engine or muffler, stop the engine and wait two (2) minutes. Make sure that the engine and muffler are safe to touch.
Remove debris from the muffler and engine.

NOTICE
Do not use water to clean the engine. Water could cause contamination of the fuel system. Use a brush or dry cloth to clean the engine.

This is an air cooled engine. Dirt or debris can prevent air flow and cause the engine to become too hot and result in unsatisfactory performance and decreased engine life.

Use a brush or dry cloth to remove debris from the air intake grille.
Keep linkage, springs, and controls clean.
Keep the area around and behind the muffler, if equipped, free of combustible debris.
Make sure the oil cooler fins, if equipped, are clean.

After a period of time, the cylinder cooling fins can collect debris and cause the engine to overheat. This unwanted material cannot be removed without partial disassembly of the engine. Have a Briggs & Stratton Authorized Service Dealer inspect and clean the air cooling system as recommended in the Maintenance Schedule.

Lithium-Ion Battery Pack Disposal

WARNING
Battery chemicals are poisonous and can cause corrosion.
Fire or explosion could result in burns or death.

Electrical Shock

Do not burn used battery packs. Explosions, poisonous fumes and dangerous materials can occur.
Do not use a damaged battery.

Used and discarded battery packs can carry a small electrical charge. Always discard used battery packs as specified by federal, state, and local regulations.

Storage

Fuel System

WARNING
Fuel and its vapors are flammable and explosive. Fire or explosion could result in burns or death.

Fuel Storage

Because pilot lights or other ignition sources can cause explosions, keep fuel or equipment away from furnaces, stoves, water heaters or other appliances that have pilot lights.

Electrical shock

To avoid electrical shock, keep the battery charger dry. Do not let the battery pack get wet.

Keep the engine level (normal operating position). Fill the fuel tank (A, Figure 24) with fuel. For fuel expansion, do not fill above the fuel tank neck (B).

Fuel can become stale when kept in a storage container for more than 30 days. The use of an alcohol-free fuel stabilizer and ethanol treatment in the fuel storage container is recommended to prevent fuel degradation and to keep the fuel fresh.

When you fill the fuel container with fuel, add an alcohol-free fuel stabilizer as specified by the manufacturer’s instructions. If gasoline in the engine has not been treated with a fuel stabilizer, it must be drained into an approved container. Operate the engine until it is out of fuel.

Engine Oil

While the engine is still warm, change the engine oil. Refer to Change the Engine Oil section.

Battery Pack and Charger

When not in operation, disconnect the charger. Examine the electrical terminals and contacts on the battery packs and charger. Keep the charger in a cool, dry area. Wet, damp areas can cause corrosion of terminals and electrical contacts. Clean the terminals with a cloth or blow clean with compressed air. For storage periods more than 3 months, fully charge the battery pack before storage.

If kept in storage for long periods in high temperatures (120°F / 49°C), or low temperatures (-4°F – 31°F / -20°C – 0°C), permanent damage to the battery pack could occur. If kept in storage for long periods in low temperatures, increase the temperature of the battery pack to operating temperatures as specified in the Specifications section before you charge the battery pack.

After storage, charge the battery pack. Refer to the Charge the Battery Pack section. To check for available charge, push the button on the Battery Fuel Gauge (E, Figure 25 26).

Troubleshooting

Assistance
For assistance, contact your local dealer or go to BRIGGSandSTRATTON.COM or call 1-800-444-7774 (in USA).

Specifications

Specifications and Service Parts

Model: 090000

Displacement| 8.64 ci (140 cc)
Bore| 2.495 in (63,4 mm)
Stroke| 1.75 in (44,45 mm)
Oil Capacity| 15 oz (,44 L)
Spark Plug Gap| .020 in (,51 mm)
Spark Plug Torque| 180 lb-in (20 Nm)
Armature Air Gap| .006 – .014 in (,15 – ,36 mm)
Intake Valve Clearance| .004 – .008 in (,10 – ,20 mm)
Exhaust Valve Clearance| .004 – .008 in (,10 – ,20 mm)
Model: 093J00

Displacement| 9.15 ci (150 cc)
Bore| 2.58 in (65,60 mm)
Stroke| 1.75 in (44,45 mm)
Oil Capacity| 15 oz (,44 L)
Spark Plug Gap| .020 in (,51 mm)
Spark Plug Torque| 180 lb-in (20 Nm)
Armature Air Gap| .006 – .014 in (,15 – ,36 mm)
Intake Valve Clearance| .004 – .008 in (,10 – ,20 mm)
Exhaust Valve Clearance| .004 – .008 in (,10 – ,20 mm)
Model: 100000

Displacement| 9.93 ci (163 cc)
Bore| 2.668 in (68,28 mm)
Stroke| 1.75 in (44,45 mm)
Oil Capacity| 15 oz (,44 L)
Spark Plug Gap| 0.30 in (,76 mm)
Spark Plug Torque| 180 lb-in (20 Nm)
Armature Air Gap| .006 – .014 in (,15 – ,36 mm)
Intake Valve Clearance| .004 – .008 in (,10 – ,20 mm)
Exhaust Valve Clearance| .004 – .008 in (,10 – ,20 mm)
Lithium-ion Battery (Portable)

Lithium-Ion Battery Pack| 10.8 V (10,8 V)
Charge Minutes| 60
Charging Current| 2 AMP (2 AMP)
Charger AC Input (Variable)| 100 – 240 V
Operating Temperature| 32 °F – 113 °F (0 °C – 45 °C)
Lithium-ion Battery (Portable)

Storage Temperature| -4 °F – 120 °F (-20 °C – 49 °C)
Lithium-ion Battery (Integrated)

Engine power will decrease 3.5% for each 1,000 feet (300 meters) above sea level and 1% for each 10°F (5.6°C) above 77°F (25°C). The engine will operate satisfactorily at an angle up to 15°. Refer to the equipment Operator’s Manual for safe allowable operating limits on slopes.

Service Parts – Models: 090000, 093J00, 100000

We recommend that you see a Briggs & Stratton Authorized Dealer for all maintenance and servicing of the engine and engine parts.

Power Ratings

The gross power rating for individual gasoline engine models is labeled in accordance with SAE (Society of Automotive Engineers) code J1940 Small Engine Power & Torque Rating Procedure, and is rated in accordance with SAE J1995. Torque values are derived at 2600 RPM for those engines with “rpm” called out on the label and 3060 RPM for all others; horsepower values are derived at 3600 RPM. The gross power curves can be viewed at www.BRIGGSandSTRATTON.COM. Net power values are taken with exhaust and air cleaner installed whereas gross power values are collected without these attachments. Actual gross engine power will be higher than net engine power and is affected by, among other things, ambient operating conditions and engine-to-engine variability. Given the wide array of products on which engines are placed, the gasoline engine may not develop the rated gross power when used in a given piece of power equipment. This difference is due to a variety of factors including, but not limited to, the variety of engine components (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 engine.

Warranty

Briggs & Stratton® Engine Warranty

Effective August 2021

Limited Warranty
Briggs & Stratton warrants that, during the warranty period specified below, it will repair or replace, free of charge, with a new, reconditioned or re- manufactured part, at the sole discretion of Briggs & Stratton, any part that is defective in material or workmanship or both. Transportation charges on product 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 BRIGGSandSTRATTON.COM. The purchaser must contact the Authorized Service Dealer, and then make the product available to the Authorized Service Dealer for inspection and testing.

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. All other 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*.

Standard Warranty Terms 1, 2, 3

Vanguard ®; Commercial Series 3
Consumer Use – 36 months
Commercial Use – 36 months
XR Series
Consumer Use – 24 months
Commercial Use – 24 months
All Other Engines Featuring Dura-Bore™ Cast Iron Sleeve
Consumer Use – 24 months
Commercial Use – 12 months
All Other Engines
Consumer Use – 24 months
Commercial Use – 3 months

These are our standard warranty terms, but occasionally there may be additional warranty coverage that was not determined at time of publication. For a listing of current warranty terms for your engine, go to BRIGGSandSTRATTON.COM or contact your Briggs & Stratton Authorized Service Dealer.
There is no warranty for engines on equipment used for prime power in place of a utility; standby generators used for commercial purposes, utility vehicles exceeding 25 MPH, or engines used in competitive racing or on commercial or rental tracks.
Vanguard® installed on standby generators: 24 months consumer use, no warranty commercial use. Commercial Series with manufacturing date before July 2017: 24 months consumer use, 24 months commercial use.

In Australia – Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage.

You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. For warranty service, find the nearest Authorized Service Dealer in our dealer locator map at BRIGGSandSTRATTON.COM, or by calling 1300 274 447, or by emailing or writing to salesenquiries@briggsandstratton.com.au, Briggs & Stratton Australia Pty Ltd, 1 Moorebank Avenue, Moorebank, NSW, Australia, 2170.

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.

About Your Warranty

This limited warranty covers engine-related material and/or workmanship issues only, and not replacement or refund of the equipment to which the engine may be mounted.
Routine maintenance, tune-ups, adjustments, or normal wear and tear are not covered under this warranty. Similarly, warranty is not applicable if the engine has been altered or modified or if the engine serial number has been defaced or removed. This warranty does not cover engine damage or performance problems caused by:

The use of parts that are not original Briggs & Stratton parts;
Operating the engine with insufficient, contaminated, or an incorrect grade of lubricating oil;
The use of contaminated or stale fuel, gasoline formulated with ethanol greater than 10%, or the use of alternative fuels such as liquefied petroleum or natural gas on engines not originally designed/manufactured by Briggs & Stratton to operate on such fuels;
Dirt which entered the engine because of improper air cleaner maintenance or reassembly;
Striking an object with the cutter blade of a rotary lawn mower, loose or improperly installed blade adapters, impellers, or other crankshaft coupled devices, or excessive v-belt tightness;
Associated parts or assemblies such as clutches, transmissions, equipment controls, etc., which are not supplied by Briggs & Stratton;
Overheating due to grass clippings, dirt and debris, or rodent nests which plug or clog the cooling fins or flywheel area, or by operating the engine without sufficient ventilation;
Excessive vibration due to over-speeding, loose engine mounting, loose or unbalanced cutter blades or impellers, or improper coupling of equipment components to the crankshaft;
Misuse, lack of routine maintenance, shipping, handling, or warehousing of equipment, or improper engine installation.

Warranty service is available only through Briggs & Stratton Authorized Service Dealers. Locate your nearest Authorized Service Dealer in our dealer locator map at BRIGGSandSTRATTON.COM or by calling 1-800-444-7774 (in USA).

80004537 (Revision G)

Briggs & Stratton Emissions Warranty

California, U.S. EPA, and Briggs & Stratton, LLC Emissions Control Warranty – Your Warranty Rights and Obligations

For Briggs & Stratton Engine Models with “B” or “G” Trim Designation (ModelType-Trim Representation xxxxxx xxxx Bx or xxxxxx xxxx Gx)

The California Air Resources Board, U.S. EPA, and Briggs & Stratton (B&S) are pleased to explain the exhaust emissions (“emissions”) control system warranty on your 2021-2023 engine. In California, new small off-road engines and large spark ignited engines less than or equal to 1.0 liter must be designed, built, and equipped to meet the State’s stringent anti-smog standards. 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 or equipment leading to the failure of the emissions control system.

Your emissions control system may include parts such as the carburetor or fuelinjection system, the ignition system, catalytic converter, fuel tanks, fuel lines (for liquid fuel and fuel vapors), fuel caps, valves, canisters, filters, clamps and other associated components. Also included may be hoses, belts, connectors, and other emissionrelated assemblies.

Where a warrantable condition exists, B&S will repair your engine at no cost to you including diagnosis, parts, and labor.

Manufacturer’s Warranty Coverage:
The exhaust emissions control system on your engine is warranted for two years. If any emissions-related part on your engine is defective, the part will be repaired or replaced by B&S.

Owner’s Warranty Responsibilities:

As the engine owner, you are responsible for the performance of the required maintenance listed in your owner’s manual. B&S recommends that you retain all receipts covering maintenance on your engine, but B&S cannot deny warranty coverage solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance.
As the engine owner, you should however be aware that B&S may deny you warranty coverage if your engine or a part has failed due to abuse, neglect, or improper maintenance or unapproved modifications.
You are responsible for presenting your engine to a B&S distribution center or service center as soon as the problem exists. The warranty repairs shall be completed in a reasonable amount of time, not to exceed 30 days. If you have a question regarding your warranty rights and responsibilities, you should contact B&S at 1-800-444-7774 (in USA) or BRIGGSandSTRATTON.COM.

Briggs & Stratton Emissions Control Warranty Provisions
The following are specific provisions relative to your Emissions Control Warranty Coverage. It is in addition to the B&S engine warranty for non- regulated engines found in the Operator’s Manual.

Warranted Emissions 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 B&S engine.
Fuel Metering System
• Cold start enrichment system (soft choke)
• Carburetor or fuel injection system
• Oxygen sensor
• Electronic control unit
• Fuel pump module
Air Induction System
• Air cleaner
• Intake manifold
Ignition System
• Spark plug(s)
• Magneto ignition system
Catalyst System
• Catalytic converter
• Exhaust manifold
• Air injection system or pulse value
Miscellaneous Items Used in Above Systems
• Vacuum, temperature, position, time sensitive valves and switches
• Connectors and assemblies
• Electronic controls
Length of Coverage
Coverage is for a period of two years from the date of delivery to an ultimate purchaser, or for the time period listed in the respective engine or product warranty statement, whichever is greater. B&S warrants to the original purchaser and each subsequent purchaser that the engine is designed, built, and equipped so as to conform with all applicable regulations adopted by the Air Resources Board; that it is free from defects in material and workmanship that could cause the failure of a warranted part; and that it is identical in all material respects to the engine described in the manufacturer’s application for certification. The warranty period begins on the date the engine or equipment is delivered to an ultimate purchaser.
The warranty on emissions-related parts is as follows:
• Any warranted part that is not scheduled for replacement as required maintenance in the Operator’s Manual supplied, is warranted for the warranty period stated above. If any such part fails during the period of warranty coverage, the part will be repaired or replaced by B&S at no charge to the owner. Any such part repaired or replaced under the warranty will be warranted for the remaining warranty period.
• Any warranted part that is scheduled only for regular inspection in the Operator’s Manual supplied, is warranted for the warranty period stated above. Any such part repaired or replaced under warranty will be warranted for the remaining warranty period.
• Any warranted part that is scheduled for replacement as required maintenance in the Operator’s Manual supplied, is warranted for the period of time prior to the first scheduled replacement point for that part. If the part fails prior to the first scheduled replacement, the part will be repaired or replaced by B&S at no charge to the owner. Any such part repaired or replaced under warranty will be warranted for the remainder of the period prior to the first scheduled replacement point for the part.
• Add-on or modified parts that are not exempted by the Air Resources Board may not be used. The use of any non-exempted add-on or modified parts by the owner will be grounds for disallowing a warranty claim. The manufacturer will not be liable to warrant failures of warranted parts caused by the use of a non-exempted add-on or modified part.
Consequential Coverage
Coverage shall extend to the failure of any engine components caused by the failure of any warranted emissions parts.
Claims and Coverage Exclusions
Warranty claims shall be filed according to the provisions of the B&S engine warranty policy. Warranty coverage does not apply to failures of emissions parts that are not original equipment B&S parts or to parts that fail due to abuse, neglect, or improper maintenance as set forth in the B&S engine warranty policy. B&S is not liable for warranty coverage of failures of emissions parts caused by the use of add-on or modified parts.

Look For Relevant Emissions Durability Period and Air Index Information On Your Small Off-Road Engine Emissions Label

Engines that are certified to meet the California Air Resources Board (CARB) small offroad Emissions Standard must display information regarding the Emissions Durability Period and the Air Index. Briggs & Stratton makes this information available to the consumer on our emissions labels. The engine emissions 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 Operator’s Manual. The following categories are used:

Moderate:
Engines at or less than 80 cc displacement are certified to be emissions compliant for 50 hours of actual engine running time. Engines greater than 80 cc displacement are certified to be emissions compliant for 125 hours of actual engine running time.

Intermediate:
Engines at or less than 80 cc displacement are certified to be emissions compliant for 125 hours of actual engine running time. Engines greater than 80 cc displacement are certified to be emissions compliant for 250 hours of actual engine running time.

Extended:
Engines at or less than 80 cc displacement are certified to be emissions compliant for 300 hours of actual engine running time. Engines greater than 80 cc displacement are certified to be emissions 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.
Briggs & Stratton engines are certified to meet the United States Environmental Protection Agency (USEPA) Phase 2 or Phase 3 emissions standards. 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 emissions requirements.

For engines at or less than 80 cc displacement:
Category C = 50 hours, Category B = 125 hours, Category A = 300 hours
For engines greater than 80 cc displacement and 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
80106344 (Revision A)

Briggs & Stratton Emissions Warranty

California, U.S. EPA, and Briggs & Stratton, LLC Emissions Control Warranty – Your Warranty Rights and Obligations
For Briggs & Stratton Engine Models with “F” Trim Designation (Model-TypeTrim Representation xxxxxx xxxx Fx)

The California Air Resources Board, U.S. EPA, and Briggs & Stratton (B&S) are pleased to explain the exhaust and evaporative emissions (“emissions”) control system warranty on your 2021-2023 engine. In California, new equipment that use small offroad engines must be designed, built, and equipped to meet the State’s stringent antismog standards. B&S must warrant the emissions control system on your engine/ equipment for the periods of time listed below provided there has been no abuse, neglect or improper maintenance of your small off- road engine or equipment leading to the failure of the emissions control system.

Your emissions control system may include parts such as the carburetor or fuelinjection system, the ignition system, catalytic converter, fuel tanks, fuel lines (for liquid fuel and fuel vapors), fuel caps, valves, canisters, filters, clamps and other associated components. Also included may be hoses, belts, connectors, and other emissionrelated assemblies.

Where a warrantable condition exists, B&S will repair your engine/equipment at no cost to you including diagnosis, parts, and labor.

Manufacturer’s Warranty Coverage:
The exhaust and evaporative emissions control system on your engine/equipment is warranted for two years. If any evaporative emission-related part on your engine/ equipment is defective, the part will be repaired or replaced by B&S.

Owner’s Warranty Responsibilities:

As the engine/equipment owner, you are responsible for the performance of the required maintenance listed in your owner’s manual. B&S recommends that you retain all receipts covering maintenance on your engine, but B&S cannot deny warranty coverage solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance.
As the engine/equipment owner, you should however be aware that B&S may deny you warranty coverage if your engine/equipment or a part has failed due to abuse, neglect, or improper maintenance or unapproved modifications.
You are responsible for presenting your engine/equipment to a B&S distribution center or service center as soon as the problem exists. The warranty repairs shall be completed in a reasonable amount of time, not to exceed 30 days. If you have a question regarding your warranty rights and responsibilities, you should contact B&S at 1-800-444-7774 (in USA) or BRIGGSandSTRATTON.COM.

Briggs & Stratton Emissions Control Warranty Provisions
The following are specific provisions relative to your Emissions Control Warranty Coverage. It is in addition to the B&S engine warranty for non- regulated engines found in the Operator’s Manual.

Warranted Emissions 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 B&S engine and/or B&S supplied fuel system.
Fuel Metering System
• Cold start enrichment system (soft choke)
• Carburetor or fuel injection system
• Oxygen sensor
• Electronic control unit
• Fuel pump module
• Fuel line (for liquid fuel and fuel vapors), fuel line fittings, clamps
• Fuel tank, cap and tether
• Carbon canister and mounting bracket
• Pressure relief valves
• Liquid/Vapor separator
Air Induction System
• Air cleaner
• Intake manifold
• Purge and vent line
Ignition System
• Spark plug(s)
• Magneto ignition system
Catalyst System
• Catalytic converter
• Exhaust manifold
• Air injection system or pulse value
Miscellaneous Items Used in Above Systems
• Vacuum, temperature, position, time sensitive valves and switches
• Connectors and assemblies
• Electronic controls
Length of Coverage
Coverage is for a period of two years from the date of delivery to an ultimate purchaser, or for the time period listed in the respective engine or product warranty statement, whichever is greater. B&S warrants to the original purchaser and each subsequent purchaser that the engine is designed, built, and equipped so as to conform with all applicable regulations adopted by the Air Resources Board; that it is free from defects in material and workmanship that could cause the failure of a warranted part; and that it is identical in all material respects to the engine described in the manufacturer’s application for certification. The warranty period begins on the date the engine or equipment is delivered to an ultimate purchaser.
The warranty on emissions-related parts is as follows:
• Any warranted part that is not scheduled for replacement as required maintenance in the Operator’s Manual supplied, is warranted for the warranty period stated above. If any such part fails during the period of warranty coverage, the part will be repaired or replaced by B&S at no charge to the owner. Any such part repaired or replaced under the warranty will be warranted for the remaining warranty period.
• Any warranted part that is scheduled only for regular inspection in the
Operator’s Manual supplied, is warranted for the warranty period stated above. Any such part repaired or replaced under warranty will be warranted for the remaining warranty period.
• Any warranted part that is scheduled for replacement as required maintenance in the Operator’s Manual supplied, is warranted for the period of time prior to the first scheduled replacement point for that part. If the part fails prior to the first scheduled replacement, the part will be repaired or replaced by B&S at no charge to the owner. Any such part repaired or replaced under warranty will be warranted for the remainder of the period prior to the first scheduled replacement point for the part.
• Add-on or modified parts that are not exempted by the Air Resources Board may not be used. The use of any non-exempted add-on or modified parts by the owner will be grounds for disallowing a warranty claim. The manufacturer will not be liable to warrant failures of warranted parts caused by the use of a non-exempted add-on or modified part.
Consequential Coverage
Coverage shall extend to the failure of any engine components caused by the failure of any warranted emissions parts.
Claims and Coverage Exclusions
Warranty claims shall be filed according to the provisions of the B&S engine warranty policy. Warranty coverage does not apply to failures of emissions parts that are not original equipment B&S parts or to parts that fail due to abuse, neglect, or improper maintenance as set forth in the B&S engine warranty policy. B&S is not liable for warranty coverage of failures of emissions parts caused by the use of add-on or modified parts.

Look For Relevant Emissions Durability Period and Air Index Information On Your Small Off-Road Engine Emissions Label
Engines that are certified to meet the California Air Resources Board (CARB) small offroad Emissions Standard must display information regarding the Emissions Durability Period and the Air Index. Briggs & Stratton makes this information available to the consumer on our emissions labels. The engine emissions 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 Operator’s Manual. The following categories are used:

Moderate:
Engines at or less than 80 cc displacement are certified to be emissions compliant for 50 hours of actual engine running time. Engines greater than 80 cc displacement are certified to be emissions compliant for 125 hours of actual engine running time.

Intermediate:
Engines at or less than 80 cc displacement are certified to be emissions compliant for 125 hours of actual engine running time. Engines greater than 80 cc displacement are certified to be emissions compliant for 250 hours of actual engine running time.

Extended:
Engines at or less than 80 cc displacement are certified to be emissions compliant for 300 hours of actual engine running time. Engines greater than 80 cc displacement are certified to be emissions 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.
Briggs & Stratton engines are certified to meet the United States Environmental Protection Agency (USEPA) Phase 2 or Phase 3 emissions standards. 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 emissions requirements.

For engines at or less than 80 cc displacement:
Category C = 50 hours, Category B = 125 hours, Category A = 300 hours
For engines greater than 80 cc displacement and 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
80106346 (Revision A)

BRIGGS STRATTON