Page 1
Operator’s Manual
Model 290000
Model 300000
Vanguard
Vanguard
Model 350000
Model 380000
Vanguard
Vanguard
BRIGGSandSTRATTON.com
ECopyright Briggs & Stratton Corporation
Milwaukee, Wisconsin 53201 U.S.A.
Form No. 277107-3/07
Printed in U.S.A.
Page 2
Safety References
SYMBOLS ASSOCIATED
WITH THIS ENGINE:
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.
Fire
Explosion
Kickback
Hot Surface
Toxic F u mes
Moving Parts
Shock
Wear Eye
Protection
Frostbite
Read
Manual
Oil
Fuel
Fuel Shutoff
On Off
Choke
Stop
Slow
Fast
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. . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
2
Page 3
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
3
2
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)
4
1
5
6
10
9
8
7
11
12
14
13
3
Page 4
Safety
WARNING
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 EQUIPMENT 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
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.
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.
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.
4
Page 5
WARNING
WARNING
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 entangle 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.
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 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.
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 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.
WARNING
Wear eye protection when doing
repair work.
Frostbite can result from skin/eye
contact with leaking LP liquid.
• 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.
5
Page 6
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.
SAE Viscosity Grades
**
*
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
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.
-20 0 20 40 60 80 100
°F
-30 -20 -10 0 10 20 30 40
°C
STARTING TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL
32
CHANGE
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.
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.)
5. Fill to FULL mark on dipstick. Recheck.
FULL
6. Tighten dipstick firmly.
6
Page 7
Fuel
Before Starting
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.
CAUTION
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.
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.
WARNING
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.
7
Page 8
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).
CAUTION
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.
FUEL
LOCK-OFF
VALV E
12 VOLT CONNECTOR
FUEL INLET
SOLENOID
Starting − All Engines
1. Check oil level.
LPG/NG Engines: Skip steps 2 and 3.
Note:
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
7. Insert key and turn to START.
8. Allow engine to warm up.
RUN
CAUTION
Use short starting cycles (5 seconds, wait one
minute between cycles). Follow equipment
manufacturer’s recommendations for charging
battery.
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.
8
Page 9
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.
WARNING
• Do not stop engine by moving choke
control to CHOKE. Backfire, fire or
engine damage could occur.
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.
Need Assistance?
Go to www.briggsandstratton.com or call 1-800-233-3723
9
Page 10
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.
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.
WARNING
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.
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.
WARNING
• 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.
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.
10
CAUTION
If engine is tipped to transport equipment, to
remove debris, to drain oil, etc., keep the spark
plug side of engine up.
Page 11
Maintenance
WARNING
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.
CAUTION
All the components used to build this engine
assembly must remain in place for the proper
operation of this engine.
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.
.
Follow the instructions and schedules indicated below.
.
Task
Perform task at hourly
or calendar interval,
whichever comes first.
Check Oil Level
Service Air Cleaner Pre-Cleaner*
Inspect Spark Arrester (if equipped)
Change Oil **
Change Oil Filter (if equipped)
Service Air Cleaner Cartridge*
Clean Oil Cooler (if equipped)*
Clean Cooling System*
Check Valve Clearance on LPG/NG Engines
Clean/Replace Spark Plugs
Clean/Replace In-line Fuel Filter (if equipped)
Every 8 Hours
or Daily
25
Hours
50
Hours
100
Hours
100 − 400
Hours
Check Valve Clearance
* Clean more often under dusty conditions or when airborne debris is present. Replace air cleaner, if very dirty.
** Change oil after first 5 to 8 hours of use, then every 100 hours. Change oil every 50 hours when operating the
engine under heavy load or in high temperatures.
11
Page 12
Changing Oil
Change oil after first 5 to 8 hours of use, then every
100 hours. Change oil every 50 hours when operating
the engine under heavy load or in high temperatures.
1. Place engine level.
2. Disconnect spark plug wire and keep it away from
spark plug. Disconnect battery (if equipped with
electric starter) at negative terminal.
3. With engine OFF but still warm remove oil drain
plug and drain oil into appropriate receptacle.
PIPE
WARNING
• Disconnect spark plug wire and keep it
away from spark plug.
Changing Oil Filter (if equipped)
Change oil filter after every 100 hours or every season.
1. Drain engine oil and remove oil filter.
2. Before installing new filter, lightly oil filter gasket
with fresh, clean oil.
Typical
drain plug
OIL DRAIN
PLUG
4. Reinstall drain plug. Remove dipstick.
5. OIL FILLING PROCEDURE: Add 1 quart (32
ounces or 1 liter). Start and run engine at idle for
30 seconds. Shut engine off and wait 30 seconds.
Then add more oil slowly to bring level to FULL
mark on dipstick. Do not overfill.
Engine holds approximately 1-1/2 quarts (48
Note:
ounces or 1.4 liters) when changing oil and filter.
3. Screw filter on by hand until gasket contacts oil
filter adapter. Tighten 1/2 to 3/4 turn more.
4. Add fresh oil. Fill to FULL line on dipstick.
5. Start and run engine at idle to check for leaks.
6. Stop engine. Re-check oil level. Add oil if
required.
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.
Oil Pressure
If oil pressure drops below 1-4 psi (0.1-0.2 kg/cm@), an
oil pressure switch (if engine is equipped) will either
activate a warning device or stop the engine. check oil
level with dipstick. if oil level is between ADD and FULL
mark on dipstick do not try to restart engine. Contact
an authorized Briggs & Stratton Service Dealer. Do not
operate engine until oil pressure is corrected.
If oil level is below ADD mark on dipstick, add oil to
bring level to FULL mark. Restart engine and check oil
pressure. If pressure is normal, continue to operate
engine.
6. Replace dipstick.
12
Note: Oil pressure gauge, if engine is equipped, is
supplied by the manufacturer of equipment.
Page 13
Air Cleaner
All engines have a round air cleaner cartridge. In
addition, some engines have a pre-cleaner.
Pre-cleaner
To clean pre-cleaner (if equipped), separate it from
cartridge and wash in liquid detergent and water.
Squeeze dry in a clean cloth.
Dual element air cleaner
BODY
PLATE
KNOB
COVER
Removing and Installing Air Cleaner
1. Unhook clips on both sides of cover and remove
cover.
2. Remove knob and plate. Carefully remove air
cleaner assembly to prevent debris from entering
carburetor.
CARTRIDGE
FOAM PRE-CLEANER
FASTENERS
WARNING
Ensure air cleaner, retainer, and cover
are properly installed before starting
engine.
3. Reassemble clean (or new) pre-cleaner on clean
(or new) cartridge.
4. Reinstall air cleaner assembly, plate and knob in
body.
5. Replace cover and reattach clips to body.
Spark Plug
Check the spark plug every 100 hours. Replace the
spark plug if upon inspection the electrode
or worn. Ensure the spark plug is clean. Check the gap
with a wire gauge and reset to .76 mm or 0.030
in. if necessary.
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.
is burned
CAUTION
Do not use pressurized air or solvents to clean
cartridge. Pressurized air can damage cartridge;
solvents will dissolve cartridge.
13
Page 14
Cleaning Debris
Daily or before every use, clean accumulated debris
from engine. Keep linkage, springs and controls clean.
Keep area behind and around muffler free of any
combustible debris.
WARNING
• Engine parts should be kept clean to reduce the
risk of overheating and ignition of accumulated
debris.
Rotating
Screen
CLEAN
Finger Guard
CLEAN
Linkage, Springs and Controls
CAUTION
Do not use water to clean engine parts. Water
could contaminate fuel system. Use a brush or dry
cloth.
Fuel System
Replacing Fuel Filter (if equipped)
Drain Fuel tank or close fuel shut-off valve before
replacing fuel filter. Otherwise, fuel can leak out
creating a fire/explosion hazard.
CLEAN
Muffler and Spark Arrester
SPARK
ARRESTER
CLEAN
WARNING
• Replacement parts for fuel system and muffler
(cap, hoses, tanks, filters, etc.) must be the
original parts, and installed in the same position
as the original parts, otherwise fire can occur.
Muffler
If muffler is equipped with spark arrester screen,
remove screen for inspection. Replace screen if
damaged or plugged.
Oil Cooler (if equipped)
Clean oil cooler of all debris and chaff.
Air Cooling System
Debris may clog the engine’s air cooling system.
Remove blower housing and clean area shown to
prevent overheating and engine damage.
Valve Clearance
Gasoline Engines: Check valve clearance yearly.
LPG/NG Engines: Valve clearance must be checked
after every 100 hours of operation. Adjust if necessary.
OIL COOLER REMOVED
CLEAN ALL AREAS
14
Page 15
Specifications
We recommend that you use an authorized Briggs &
Stratton Service Dealer for all maintenance and service
of the engine and engine parts. Use only genuine
Briggs & Stratton parts.
In the state of California, Model 290000, 300000,
350000 and 380000 engines are certified by the
California Air Resources Board to meet emissions
standards for 250 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 290000 and 300000
Bore 2.68 in. (68 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke 2.6 in. (66 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement 29.3 cu. in. (480 cc). . . . . . . . . . . . . . . . . .
Model 350000
Bore 2.83 in. (72 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke 2.76 in. (70 mm). . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement 34.7 cu. in. (570 cc). . . . . . . . . . . . . . . . . .
Model 380000
Bore 2.97 in. (75.5 mm). . . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke 2.76 in. (70 mm). . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement 38.2 cu. in. (627 cc). . . . . . . . . . . . . . . . . .
Tune-up Specifications
Armature air gap 0.008 − 0.012 in. (0.20 − 0.30 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 272144.
Intake 0.004 − 0.006 in. (0.10 − 0.15 mm). . . . . . . . . . . .
Exhaust 0.004 − 0.006 in. (0.10 − 0.15mm). . . . . . . . . . .
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
page 3, Engine Features.
Model
Type
Code
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).
Torque values are derived at 3060 RPM; horsepower
values are derived at 3600 RPM. 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 power). 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.
15
Page 16
Storage
1. Engines stored over 30 days need to be
protected or drained of fuel to prevent gum from
forming in fuel system or on essential carburetor
parts.
• 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.
• If fuel tank contains gasoline, either run engine until
it stops from lack of fuel, or add a gasoline additive to
the gas in tank.
2. While engine is still warm, change oil.
3. Remove spark plug and pour about 1/2 oz (15ml)
of engine oil into cylinder. Replace spark plug and
crank slowly to distribute oil.
4. Clean dirt and chaff from cylinder, cylinder head
fins, blower housing and rotating screen areas.
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.
Service
See an Authorized Briggs & Stratton Service Dealer for
all your engine service needs. 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 Briggs & Stratton, you are assured of
highly skilled, reliable engine 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 find the nearest Authorized Service Dealer
in our dealer locator map at
www.briggsandstratton.com, or by
calling 1-800-233-3723
Need Assistance?
Go to www.briggsandstratton.com
or call 1-800-233-3723
WARNING
When storing fuel 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 vapors.
When Transporting Equipment:
• Gasoline Engine: Transport with fuel tank
EMPTY or with fuel shut-off valve OFF.
• Liquid Petroleum Gas (LPG) /Natural Gas
Engine: Transport with fuel cylinder empty
and valve closed or tank disconnected.
PARTIAL LIST OF
GENUINE BRIGGS & STRATTON
PARTS
PART PART NO.
Air Cleaner Cartridge 394018. . . . . . . . . . . . . . . . . . . . . .
Air Cleaner Pre-Cleaner 272490. . . . . . . . . . . . . . . . . . . .
Air Cleaner Pre-cleaner and Cartridge 5050. . . . . . . . . .
Air Cleaner Cartridge (380700) 692519. . . . . . . . . . . . . .
Air Cleaner Pre-cleaner (380700) 692520. . . . . . . . . . . .
Oil 100005 -OR- 100028. . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Filter (3-1/2 in. long) 491056. . . . . . . . . . . . . . . . . . . .
Oil Filter (2-1/4 in. long) 492932 -OR- 5049. . . . . . . . . .
Fuel Filter (with fuel pump) 493629. . . . . . . . . . . . . . . . .
Fuel Filter (without fuel pump) 298090 -OR- 5018. . . . .
Gas Additive 5041. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Resistor Spark Plug 491055. . . . . . . . . . . . . . . . . . . . . . .
Resistor Spark Plug 496018. . . . . . . . . . . . . . . . . . . . . . .
Long Life Platinum Spark Plug 5066. . . . . . . . . . . . . . . .
(used on most OHV engines)
Spark Plug Wrench 19374. . . . . . . . . . . . . . . . . . . . . . . . .
Spark Tester 19368. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pump Kit 5056. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(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, 4 cycle engines. It is available for
purchase from an Authorized Briggs & Stratton Service
Dealer or you can order it from
www.briggsandstratton.com.
16
Page 17
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 your 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.
17
Page 18
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
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.)
, and not
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
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.
element or the foam pre-cleaner, and
18
Page 19
BRIGGS & STRATTON ENGINE OWNER WARRANTY POLICY
Effective 12/06
Briggs & Stratton Corporation will repair or replace, free of charge, any part(s) of the engine that is defective
LIMITED WARRANTY
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 Consumer Use Commercial Use
Vanguard 2 years 2 years
Extended Life Series, I / C, Intek I / C, Intek Pro 2 years 1 year
Kerosene Fuel Operated Engines 1 year 90 days
All Other Briggs & Stratton Engines 2 years 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
19
Page 20
Loading...