Briggs & Stratton 290000 Series Manual

Operating & Maintenance

Instructions

Model 290000 300000 350000 380000 Series covered in this manual

FORM NO. 276353-7/05

PRINTED IN U.S.A.

www.briggsandstratton.com

The Power That Works For You®

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, and

how to avoid them. Because Briggs & Stratton does

not necessarily know what equipment this engine will

power, it is important that you read and understand

these instructions and the instructions for the

equipment this engine powers.

Table of Contents

Safety References 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Features 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety 4−5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Oil 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fuel 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Stopping 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance 11−14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications and Emission Information 15. . . . . . . . . . . .

Storage and Service 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warranty Information 17. . . . . . . . . . . . . . . . . . . . . . . . . . . .

SYMBOLS ASSOCIATED

WITH THIS ENGINE:

Explosion

Toxic Fumes

Moving Parts

Shock

Hot Surface

Kickback

Fire

Fuel Shutoff

Read

Manual

Choke

Oil

Fuel

On Off

Stop

Wear Eye

Protection

Frostbite

Slow

Fast

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.

The engine exhaust from this product contains

chemicals known to the State of California to cause

cancer, birth defects, or other reproductive harm.

WARNING

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.

CAUTION

Features

1. Air Cleaner

2. Carburetor or LPG / NG Fuel Mixer

3. Rewind Starter (if equipped)

4. Blower Housing

5. Oil Filter (if equipped)

6. Spark Plug Wire

7. Oil Drain Plug

8. Oil Fill/Dipstick

9. Rotating Screen

10. Emission Label

11. Engine Identification

Model XXXXXX Type XXXXXX Code

XXXXXXXX

12. Fuel Pump

13. Exhaust Manifold

14. 12V Electric Starter (if equipped)

ÎÎ

14 13

Safety

Gasoline and its vapors are extremely

flammable and explosive.

Fire or explosion can cause severe

burns or death.

WHEN ADDING FUEL

•Turn engine OFF and let engine cool at least

2 minutes before removing gas cap.

•Fill fuel tank outdoors or in well-ventilated

area.

•Do not overfill fuel tank.

•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.

WHEN STARTING ENGINE

•Make sure spark plug, muffler, fuel cap and

air cleaner are in place.

•Do not crank engine with spark plug removed.

•If fuel spills, wait until it evaporates before

starting engine.

•If engine floods, set choke to OPEN/RUN

position, place throttle in FAST and crank

until engine starts.

WHEN OPERATING EQUIPMENT

•Do not choke carburetor to stop engine.

WHEN TRANSPORTING EQUIPMENT

•Transport with fuel tank EMPTY.

WHEN STORING GASOLINE OR EQUIP-

MENT WITH FUEL IN TANK

•Store away from furnaces, stoves, water

heaters or other appliances that have pilot

light or other ignition source because they

can ignite gasoline vapors.

WARNING

Starting engine creates sparking.

Sparking can ignite nearby flammable

gases.

Explosion and fire could result.

•If there is natural or LP gas leakage in area, do

not start engine.

•Do not use pressurized starting fluids because

vapors are flammable.

WARNING

Gaseous fuels, such as liquid

petroleum gas (LPG) and natural

gas (NG), are extremely flammable

and can readily form explosive

air-vapor mixtures at moderate

temperatures.

WARNING

IF YOU SMELL GAS:

•DO NOT start the engine.

•DO NOT actuate any electrical switches.

•DO NOT use the phone in the vicinity.

•Evacuate the area.

•Contact the gas supplier or fire department.

REMEMBER:

•LPG vapor is heavier than air and tends to

collect in low areas. NG vapor is lighter then

air and tends to collect in high areas. Both may

travel to remote locations.

•Keep all flames, sparks, pilot lights and other

ignition sources away from the area where the

engine is operated or repaired.

•DO NOT smoke when operating or repairing

the engine.

•DO NOT store gasoline or other flammable

vapors or liquids in the vicinity of the engine.

•BEFORE doing any service work to the

engine, shut off the gas supply.

•After initial installation or servicing, check for

gas leaks. DO NOT use an open flame. Apply

very soapy water or leak test solution with a

brush and look for bubbles.

•Keep the equipment and the area surrounding

the engine free of debris.

•Install the fuel system according to applicable

fuel/gas codes.

Rapid retraction of starter cord

(kickback) will pull hand and arm

toward engine faster than you can

let go.

Broken bones, fractures, bruises

or sprains could result.

•When starting engine, pull cord slowly until

resistance is felt, then pull rapidly.

•Direct coupled equipment components such as,

but not limited to, blades, impellers, pulleys,

sprockets, etc., must be securely attached.

WARNING

Rotating parts can contact or en-

tangle hands, feet, hair, clothing, or

accessories.

Traumatic amputation or severe

laceration can result.

•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.

WARNING

Engines give off carbon monoxide,

an odorless, colorless, poison gas.

Breathing carbon monoxide can

cause nausea, fainting or death.

•Start and run engine outdoors.

•Do not start or run engine in enclosed area,

even if doors or windows are open.

WARNING

•Allow muffler, engine cylinder and fins to cool

before touching.

•Remove accumulated debris 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.

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.

Before performing maintenance or repairs:

•Disconnect spark plug wire and keep it away

from spark plug.

•Disconnect battery at negative terminal (only

engines with electric start).

•Use only correct tools.

•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.

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.

WARNING

Wear eye protection when doing

repair work.

Frostbite can result from skin/eye

contact with leaking LP liquid.

WARNING

•Installation, adjustment and repair work should

be done by a qualified technician.

•Flexible supply lines should be checked regularly

to make sure they are in good condition. Replace

damaged or leaking components.

Before Starting

Oil

Oil Capacity

Engine holds approximately 1-1/2 quarts (48 ounces or

1.4 liters) when changing oil and filter.

Oil Recommendation

•Use a high quality detergent oil classified “For

Service SF, SG, SH, SJ” or higher. Briggs & Stratton

strongly recommends the use of synthetic oil. If

synthetic oil is unavailable, Briggs & Stratton

non-synthetic 30 weight oil P/N 1000005 (20 oz.) or

P/N 1000028 (48 oz.) is an acceptable substitute.

•Do not use special additives.

•Choose a viscosity according to the table below.

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.

°F-20 0 20 40 60 80 100

°C-30 -20 -10 0 10 20 30 40

STARTING TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

SAE Viscosity Grades

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 and Adding Oil

•Check oil level before starting the engine.

•Keep oil level at FULL. Do not overfill.

•Check level daily, or after every eight (8) hours.

Oil Fill

ÎÎ

1. Place engine level and clean around oil fill and

dipstick.

2. Remove dipstick and wipe with clean cloth.

3. Tighten dipstick down. Remove and check oil

level.

4. Remove oil fill cap. Pour oil slowly. First add 1 qt

(32 oz or 1 liter). Start and run engine at idle for

30 seconds. Shut off engine and wait 30 seconds.

Then add more oil slowly to bring level to FULL

mark on dipstick.

5. Fill to FULL mark on dipstick. Recheck.

FULL

ÎÎÎ

6. Tighten dipstick firmly.

Oil Pressure Switch

If engine is equipped with oil pressure switch, the

switch will either activate a warning device or stop the

engine when the engine runs low on oil. (Read the

operating instructions supplied by equipment

manufacturer to determine how your engine is

equipped.)

Before Starting

Fuel

Gasoline Powered Engines

•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.

•For engine protection use Briggs & Stratton

Gasoline Additive available from your Authorized

Briggs & Stratton Dealer.

•Do not use gasoline which contains Methanol.

•Do not mix oil with gasoline.

•This engine is certified to operate on gasoline.

Exhaust Emission Control System: EM (Engine

Modifications).

Adding Fuel

1. Turn engine OFF and let engine cool at least 2

minutes before removing gas cap.

2. Remove cap. Fill tank to approximately 1-1/2

inches below top of neck to allow for fuel

expansion. Be careful not to overfill.

3. Replace cap before starting.

Some fuels, called oxygenated or reformulated

fuels, are fuels 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.

CAUTION

Liquid Propane Gas (LPG)

Natural Gas (NG) Powered Engines

•Use clean, dry fuel, free of moisture or any

particulate material. Using fuels outside the

following recommended values may cause

performance problems.

•In engines set to run on LPG, commercial grade

HD5 LPG is recommended. Recommended fuel

composition is fuel with a minimum fuel energy of

2500 BTU’s/ft#with maximum propylene content

of 5% and butane and heavier gas content of

2.5% and minimum propane content of 90%.

•LPG or NG engines are certified to operate on

liquid propane gas or natural gas.

Adding Fuel

Read the operating instructions supplied by the

equipment manufacturer for information on refueling

natural or LP gas engine.

LPG/NG Engines: The equipment on

which this engine is mounted is

equipped with an automatic safety gas

“fuel lock-off” valve. DO NOT operate

the equipment if the “fuel lock-off” valve

is missing or inoperative.

WARNING

Starting

Oil Pressure Switch

If engine is equipped with oil pressure switch, the switch

will either activate a warning device or stop the engine

when the engine runs low on oil. (Read the operating

instructions supplied by equipment manufacturer to

determine how your engine is equipped.)

Before Starting - Liquid Petroleum

Gas (LPG) / Natural Gas (NG) Engines

The LPG/NG mixer is equipped with solenoid, fuel inlet,

12 volt connector, and equipped for a fuel lock-off valve.

(Read the operating instructions supplied by equipment

manufacturer to determine how your engine is

equipped).

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.

CAUTION

When operating on LPG fuel, 12 volts MUST be

supplied to the connector.

When operating on NG fuel, 12 volts MUST NOT

be supplied to connector. Failure to do so may

cause engine damage.

CAUTION

FUEL INLET

12 VOLT CONNECTOR

FUEL

LOCK-OFF

VALVE

SOLENOID

Starting −All Engines

1. Check oil level.

Note: LPG/NG Engines: Skip steps 2 and 3.

2. Open fuel shut-off valve (if equipped).

3. Pull choke control to CHOKE or START position.

4. Move throttle (if equipped) to FAST position.

Operate engine with throttle in FAST position and

choke in RUN or OFF position.

5. REWIND (MANUAL) STARTER: Grasp rope

handle. Pull slowly until resistance is felt. Then

pull rapidly to start engine and avoid kickback.

Repeat if necessary with choke in OFF or RUN.

6. ELECTRIC (KEY) STARTER: Push rocker switch

(if equipped) to ON or RUN.

STOP RUN

7. Insert key and turn to START.

8. Allow engine to warm up.

Use short starting cycles (5 seconds, wait one

minute between cycles). Follow equipment

manufacturer’s recommendations for charging

battery.

CAUTION

Note: Choke equipped: In warm weather

temperatures, move choke control lever toward RUN

slowly over several seconds, in cold weather allow

engine to run smoothly before each change. Operate

with choke in RUN.

Stopping

1. REWIND (MANUAL) STARTER: Move throttle

control (if equipped) to SLOW and then STOP

position.

2. ELECTRIC (KEY) STARTER: Move throttle lever

(if equipped) to SLOW.

3. ELECTRIC (KEY) STARTER: Turn key to OFF.

Remove key and store out of reach of children.

4. Push rocker switch (if equipped) to STOP.

STOP RUN

5. Close fuel shut-off valve (if equipped).

Note: When engine is transported, close fuel shut-off

valve (if equipped) to prevent leakage.

WARNING

•Do not stop engine by moving choke

control to CHOKE. Backfire, fire or

engine damage could occur.

Go to www.briggsandstratton.com or call 1-800-233-3723

Need Assistance?

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.

Troubleshooting

Starter Handle will Not Pull

•Place equipment on flat level surface.

•Remove all external equipment/engine loads before

starting engine.

•Direct coupled equipment components such as, but

not limited to, blades, impellers, pulleys, sprockets,

etc., must be securely attached.

WARNING

•When starting engine, pull cord slowly until

resistance is felt, then pull rapidly.

Rapid retraction of starter cord

(kickback) will pull hand and arm

toward engine faster than you can

let go.

Broken bones, fractures, bruises

or sprains could result.

Engine will Not Start

Out of Fuel

•Add fuel to tank.

Engine Flooded

•Gasoline engine: Set choke (if equipped) to

OPEN/RUN position, and continue to pull starter

handle.

Spark Plug Fouling

•Check and ensure the spark plug is clean. Check the

gap with a feeler gauge and reset to .76 mm or .030

in. if necessary.

•If the electrode is burned or worn, replace spark plug

with new spark plug.

CAUTION

If engine is tipped to transport equipment, to

remove debris, to drain oil, etc., keep the spark

plug side of engine up.

CAUTION

Engine is Smoking or Running

Rough

Engine may have been tipped during

transport.

•Check for fouled spark plug.

•Check air cleaner filter for oil saturation. Squeeze

pre-cleaner in clean, absorbant cloth to remove ALL

EXCESS oil. If air cleaner is saturated, replace with

new cartridge.

•Ensure fuel cap is in place before

starting engine

•Turn engine OFF and let engine cool

at least 2 minutes before removing fuel

cap.

•Check fuel lines, tank, cap, and fittings

frequently for cracks or leaks. Replace

if necessary.

•Do not crank engine with spark plug

removed.

WARNING

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