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Vanguard
Vanguard
Model 540000
Model 610000
E Copyright Briggs & Stratton Corporation
Form No. MS-3854-3/07
Printed in U.S.A.
BRIGGSandSTRATTON.com
Milwaukee, Wisconsin 53201 U.S.A.
Note: (This note applies only to engines used in the U.S.A.) 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.
GB
ENGINE COMPONENTS
GENERAL INFORMATION
The safety alert symbol ( )is used to identify safety
information about hazards that can result in personal injury.
This is a twin cylinder, overhead valve (OHV), air-cooled
engine. It is a low emissions engine.
Fig. 1
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.
In the state of California, Model 540000 and 610000
engines are certified by the California Air Resources Board
to meet emissions standards for 1000 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.
1
Choke Control (if equipped)
Breather/Breather tube
Spark Plug (2 locations)
2
3
4
DANGER indicates a hazard which, if not avoided,
will result in death or serious injury.
Engine Model Label
Model xxxxxx Type xxxxxx Code xxxxxxxx
WARNING indicates a hazard which, if not avoided,
could result in death or serious injury.
5
6
Oil Pressure Sensor
Oil Filter
Model 540000
Bore . . . . . . . . . . . . . . . . . . . . . . . 85.5 mm (3.36 in.)
Stroke . . . . . . . . . . . . . . . . . . . . . . . 78 mm (3.07 in.)
Displacement . . . . . . . . . . . . . . . 895 cc (54.6 cu. in.)
CAUTION indicates a hazard which, if not avoided,
might result in minor or moderate injury.
7
8
9
10
11
12
13
14
15
16
17
18
19
Oil Drain Plug (2 locations)
Rotating Screen
Cover − Carburetor
Carburetor or LPG/NG Mixer
Mechanical Fuel Pump
Air Cleaner
CAUTION, when used without the alert symbol,
indicates a situation that could result in damage to
the engine.
Model 610000
Bore . . . . . . . . . . . . . . . . . . . . . . . 85.5 mm (3.36 in.)
Stroke . . . . . . . . . . . . . . . . . . . . . 86.5 mm (3.04 in.)
Displacement . . . . . . . . . . . . . . . 993 cc (60.6 cu. in.)
WARNING
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).
Engine will operate satisfactorily at an angle up to 25°.
Oil Fill
The engine exhaust from this product contains chemi-
cals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
Dipstick
Regulator/Rectifier
Starter Solenoid
Starter
Hazard Symbols and Meanings
Exhaust System/Muffler
Throttle control (2 locations)
TUNE-UP SPECIFICATIONS
Record your engine Model, Type and Code numbers here
for future use.
Armature air gap . . . 0.13 − 0.20 mm (0.005 − 0.008 in.)
Spark plug gap . . . . . . . . . . . . . . . 0.76 mm (0.030 in.)
Valve clearance with valve springs installed and piston 6 mm
(1/4 in.) past top dead center (check when engine is cold).
Intake . . . . . . . . . . . 0.10 − 0.15 mm (0.004 − 0.006 in.)
Exhaust . . . . . . . . . 0.10 − 0.15 mm (0.004 − 0.006 in.)
Explosion
Moving Parts
Kickback
Fire
Record your date of purchase here for future use.
Toxic Fumes
Hot Surface
Shock
TECHNICAL INFORMATION
SAFETY SPECIFICATIONS
Engine Power Rating Information
Wear Eye Protection
Frostbite
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-en-
gine 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.
BEFORE OPERATING
ENGINE
International Hazard Symbols and Meanings
• Read entire Operating & Maintenance Instructions
AND the instructions for the equipment this engine
powers.*
• Failure to follow instructions could result in serious
On Off
Safety Alert
Read Operator’s
Manual
injury or death.
* Briggs & Stratton does not necessarily know what equip-
ment this engine will power. For that reason, you should
carefully read and understand the operating instructions
for the equipment on which your engine is placed.
Oil
Stop
Fuel
Choke
Fuel Shutoff
THE OPERATING & MAINTENANCE
INSTRUCTIONS CONTAIN SAFETY
INFORMATION TO:
WARNING
• Make you aware of hazards associated with engines
• Inform you of the risk of injury associated with those
Starting engine creates sparking.
hazards, and
• Tell you how to avoid or reduce the risk of injury.
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.
1
WARNING
WARNING
WARNING
Running engines produce heat. Engine
parts, especially muffler, become ex-
tremely hot.
Gaseous fuels are extremely
flammable and readily form
explosive air-vapor mixtures at
ambient temperatures.
Gasoline and its vapors are extremely
flammable and explosive.
Fire or explosion can cause severe
burns or death.
Severe thermal burns can occur on
contact.
IF YOU SMELL GAS:
WHEN ADDING FUEL
Combustible debris, such as leaves,
grass, brush, etc. can catch fire.
•
•
•
•
•
DO NOT start the engine.
•
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 actuate any electrical switches.
DO NOT use the phone in the vicinity.
Evacuate the area.
•
•
•
Allow muffler, engine cylinder and fins to cool
before touching.
•
•
Do not overfill fuel tank. Fill tank to approximately
1-1/2 inches below top of neck to allow for fuel
expansion.
Remove accumulated combustibles from muffler
area and cylinder area.
Contact the gas supplier or fire department.
REMEMBER:
Install and maintain in working order a spark
arrester before using equipment on forest-cov-
ered, 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.
•
•
Keep gasoline away from sparks, open flames,
pilot lights, heat, and other ignition sources.
•
LPG vapor is heavier than air and trends to collect
in low areas. NG vapor is lighter than air and tends
to collect in high areas. Both may travel to remote
locations.
Check fuel lines, tank, cap, and fittings frequently
for cracks or leaks. Replace if necessary.
WHEN STARTING ENGINE
•
Keep all flames, sparks, pilot lights, and other
ignition sources away from the area where the
engine is operated or repaired.
•
Make sure spark plug, muffler, fuel cap and air
cleaner are in place.
Do not crank engine with spark plug removed.
•
•
•
•
DO NOT smoke when operating or repairing the
engine.
•
•
WARNING
If fuel spills, wait until it evaporates before starting
engine.
DO NOT store gasoline or other flammable vapors
or liquids in the vicinity of the engine.
Unintentional sparking can result in
fire or electric shock.
•
If engine floods, set choke to OPEN/RUN position,
place throttle in FAST and crank until engine starts.
BEFORE doing any service work to the engine,
shut off the gas supply.
Unintentional start-up can result in
entanglement, traumatic amputation,
or laceration.
WHEN OPERATING EQUIPMENT
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.
•
Do not tip engine or equipment at angle which
causes gasoline to spill.
Do not choke carburetor to stop engine.
•
BEFORE PERFORMING ADJUSTMENTS OR
REPAIRS
•
•
Keep the equipment and the area surrounding the
engine free of debris.
WHEN TRANSPORTING EQUIPMENT
Install the fuel system according to applicable
fuel/gas codes.
•
Transport with fuel tank EMPTY or with fuel shut-off
valve OFF.
•
Disconnect spark plug wire and keep it away from
spark plug.
•
On NATURAL / LIQUID PETROLEUM (LP) GAS
engines transport with fuel cylinder empty or valve
closed, or tank disconnected.
•
Disconnect battery at negative terminal (only
engines with electric start).
WHEN TESTING FOR SPARK
WHEN STORING FUEL OR EQUIPMENT WITH
FUEL IN TANK
•
•
Use approved spark plug tester.
Do not check for spark with spark plug removed.
•
Store away from furnaces, stoves, water heaters or
other appliances that have pilot light or other
ignition source because they can ignite gasoline
vapors.
OIL RECOMMENDATIONS
WARNING
CAUTION: This engine is shipped from Briggs &
Stratton without oil. Check oil level before starting
engine. If you start the engine without oil, the
engine will be damaged beyond repair and will not
be covered under warranty.
Rotating parts can contact or entangle
hands, feet, hair, clothing, or
accessories.
Traumatic amputation or severe lac-
eration can result.
Oil capacity is about 2.3 liter (80 ounces)*
*Approximate amount when changing oil and filter.
Type of Oil to use
Use a high quality detergent oil classified ꢀFor Service
SF, SG, SH, SJ" or higher such as Briggs & Stratton 30,
Part Number 100005 (20 oz) or 100028 (48 oz).
•
•
•
•
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.
•
•
•
Use no special additives with recommended oils.
Do not mix oil with gasoline.
WARNING
Choose the SAE viscosity grade of oil from this chart that
matches the starting temperature anticipated before the
next oil change.
Wear eye protection when doing repair
work.
WARNING
Frostbite can result from skin/eye con-
tact with leaking LP liquid.
Engines give off carbon monoxide, an
odorless, colorless, poison gas.
Fig. 2
Breathing carbon monoxide can
cause nausea, fainting or death.
*
CAUTION: 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.
•
•
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.
•
•
Start and run engine outdoors.
Do not start or run engine in enclosed area, even if
doors or windows are open.
** CAUTION: Use of SAE 30 oil below 40° F (4° C) will
result in hard starting and possible engine damage due
to inadequate lubrication.
2
supplied by the equipment manufacturer to determine
which way your engine is equipped.)
SeeOIL PRESSURE in the MAINTENANCE SECTION for
Note: Synthetic oil meeting ILSAC GF-2, API certi-
fication mark and API service symbol (shown at
left) with ꢀSJ/CF ENERGY CONSERVING" or high-
er, is an acceptable oil at all temperatures. Use of
synthetic oil does not alter required oil change
intervals.
ADDING FUEL
Read the operating instructions supplied by the equipment
manufacturer for information on refueling natural or LP gas
engine.
oil filling instructions.
TO START ENGINE
Insert key and turn to START.
STARTING IN COLD WEATHER:
♦ Use correct type of oil for expected starting
CHECKING AND ADDING OIL
temperature. See Oil.
♦ Use fresh gasoline, which has higher volatility to
CAUTION:
To prolong starter life, use short starting cycles
(5 seconds maximum, then wait one minute). Follow
equipment manufacturer’s recommendations for
charging.
improve starting.
♦ Remove external equipment/engine loads.
Fig. 3
(See equipment operating instructions.)
♦ Open fuel shut-off valve, if equipped, before
•
•
•
•
Check oil level before starting the engine.
Check level daily, or after every eight (8) hours Ê.
Keep oil level at FULL Ë.
starting engine.
♦ Allow engine to warm up several seconds to
TO STOP ENGINE
Turn key OFF. Remove key and store out of reach of
children.
several minutes, depending on outside temperature.
♦ Gradually open choke.
Do not overfill.
Oil filling procedure:
♦ For maximum performance and life, operate engine
with choke in OPEN and throttle in FAST.
1. First add 2 liters (67 ounces).
2. Start and run engine at idle for 30 seconds. See Starting
Instructions.
3. Shut engine off and wait 30 seconds.
4. Then add more oil slowly to bring level to Full mark on
dipstick.
MAINTENANCE
Regular maintenance will improve the performance and
extend the life of the engine. See any Authorized Briggs &
Stratton Dealer for service. Use only genuine Briggs &
Stratton parts. Other parts may not perform as well,
may damage the engine, and may result in injury. In
addition, use of other parts may void your warranty.
TO START ENGINE
Fig. 4
1. Open fuel shut-off valve Ê (if equipped).
2. Move choke control to CHOKE or START Ë.
3. Move throttle (if equipped ) to FAST Ì.
4. Push rocker switch (if equipped ) to ON or RUN Í.
5. Insert key and turn to START Î.
Oil checking procedure:
ENGINE AND ENGINE PARTS
1. Place engine level. Clean around oil fill and dipstick Ì.
2. Remove dipstick and wipe clean with cloth.
3. Then push dipstick back in and remove to check oil level.
Oil should be at FULL line on dipstick Ë.
4. If oil is needed, add slowly.
5. Fill to FULL line on dipstick − recheck.
6. Replace dipstick firmly.
We recommend that you see an authorized Briggs &
Stratton Service Dealer for all maintenance and service of
the engine and engine parts. Use only genuine Briggs &
Stratton parts.
Perform the following at recommended intervals:
Every 8 hours or daily
CAUTION:
To prolong starter life, use short starting cycles
(5 seconds maximum, then wait one minute). Follow
equipment manufacturer’s recommendations for
charging.
D
D
Check oil level
Check for oil leaks
FUEL RECOMMENDATIONS
Every 50 hours
6. Allow engine to warm up.
If choke equipped:
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.
D
D
Check valve clearance *
Clean spark arrester (if equipped)
Slowly adjust toward RUN position. Wait until engine
runs smoothly before each choke adjustment.
Every 100 hours or every season
D
D
D
D
Change oil *
•
•
•
Do not use gasoline which contains Methanol.
Do not mix oil with gasoline.
WARNING
Change oil filter *
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.
Clean air cleaner **
For engine protection use Briggs & Stratton Gasoline
Additive available from your Authorized Briggs &
Stratton Dealer (P/N 5041 or single use pouch).
Check valve clearance on NG / LPG Engines.
Every 250 hours
This engine is certified to operate on gasoline. Exhaust
Emission Control System: EM (Engine Modifications).
D
D
Check valve clearance
Check battery electrolyte
TO STOP ENGINE
CAUTION:
Every 400 hours
Some fuels, called oxygenated or reformulated
gasoline, are gasoline blended with alcohols or
ethers. Excessive amounts of these blendscan
damage the fuel system or cause perfor-
manceproblems. If any undesirable operating
symptoms occur,use gasoline with a lower percent-
age of alcohol or ether.
Fig. 4
D
D
Replace air cleaner cartridge **
Change fuel filter
1. Move throttle to SLOW Ì (if equipped)
2. Turn key OFF Î. Remove key and store out of reach of
children.
3. Push rocker switch Í (if equipped) to OFF or STOP.
4. Close fuel shut-off valve Ê (if equipped).
Every 600 hours
D
Replace safety filter cartridge
Yearly
D
Change spark plugs
NATURAL / LIQUID PROPANE
GAS POWERED ENGINES
ADDING FUEL
*
Change oil and filter after first 5 to 8 hours of use,
then every 100 hours or every season. Change oil
every 50 hours when operating the engine under
heavy load or in high temperatures.
Check valve clearance after first 50 hours of use,
then every 250 hours.
1. Remove cap. Fill tank to
FUEL RECOMMENDATIONS
Use clean, dry fuel, free of moisture or any particulate
material. Using fuels outside the following recommended
values may cause performance problems.
WARNING
approximately 1-1/2 inches
below top of neck to allow for
fuel expansion. Be careful
not to overfill.
•
** Clean more often under dusty conditions or when
airborne debris is present. Replace air cleaner parts,
if very dirty.
•
In engines set up to run on LPG, commercial grade HD5
LPG is recommended. Recommended fuel composition
2. Replace cap before starting.
3
is fuel with a minimum fuel energy of 2500 BTU’s/ft with
STARTING/STOPPING
maximum propylene content of 5% and butane and
heavier gas content of 2.5% and minimum propane
content of 90%.
CHANGING OIL AND OIL FILTER
WARNING
•
NG or LPG engines are certified to operate on natural or
liquid propane gas.
Fig. 5
WARNING
Change oil and filter after first 5 to 8 hours and every 100
hours thereafter.
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.
1. With engine OFF but still warm, remove oil drain plug
Ê
OIL PRESSURE SWITCH
and drain oil into appropriate receptacle. Reinstall drain
plug.
If engine is equipped with an oil pressure switch, the switch
will either activate a warning light or stop the engine when
the engine runs low on oil. (Read the operating instructions
2. Remove oil filter Ë. Before installing new filter, lightly oil
filter gasket with fresh, clean oil.
3
run engine until it stops from lack of fuel, or b) if fuel tank
contains gasoline, either run engine until it stops from
lack of fuel, or add a gasoline additive to the gas in the
tank. (See parts list. Single-use pouches of gas additive
are available from your service dealer.) If you use a gas
additive, run the engine for several minutes to circulate
the additive through the carburetor. Then, engine and
fuel can be stored up to 24 months.
3. Screw filter on by hand until gasket contacts oil filter
adapter. Tighten 1/2 to 3/4 turn more.
AIR CLEANER
Fig. 7
Fig. 3
CAUTION:
4. Place engine level. Remove oil fill cap Í and add fresh
oil. Oil filling procedure: First, add 67 ounces (2 liters).
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 Ë. Do not overfill.
Do not use pressurized air or solvents to clean
cartridge. Pressurized air can damage cartridge;
solvents will dissolve cartridge.
2. While engine is still warm, change oil.
3. Remove spark plugs and pour about 1 oz. (30 ml) of
engine oil into each cylinder. Replace spark plugs and
crank slowly to distribute oil.
5. Replace oil fill cap and dipstick.
Clean Air Filter Cartridge every 100 hours. To clean
cartridge, gently tap on end with handle of screwdriver.
Replace cartridge every 400 hours. Clean and replace
more often under dusty conditions.
1. Remove cover Ê.
2. Remove cartridge Ë , and inspect. Replace if very dirty
or any damage occurs to cartridge.
3. Carefully clean out air cleaner cover.
4. Install cartridge in.
5. Install cover
On Gasoline Engine: Install cover and lock clamps with
rubber valve Ì down.
4. Clean engine of surface debris, chaff or grass.
CAUTION:
Store in a clean, dry area. Do not
WARNING
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.
store in same area as a stove,
furnace, water heater, or other ap-
pliance that uses a pilot light or has a
device that can create a spark.
OIL PRESSURE
If oil pressure drops below 1-4 psi (.1-.2 kg/cm ), an oil
2
SERVICE
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.
We recommend that you see an authorized Briggs &
Stratton Service Dealer for all maintenance and service of
the outboard and outboard parts. Use only genuine Briggs
& Stratton parts.
Each Authorized Briggs & Stratton Service Dealer 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 recognized as ꢀAuthorized Briggs & Stratton" meet
the higher Briggs & Stratton service standards.
Gasoline Engine:
Replace Safety Filter Cartridge Í every 600 hours, or with
every other air filter cartridge replacement.
To replace cartridge, pull carefully to remove from air
cleaner body, ensure no debris enters engine. Install new
safety cartridge first, then install air filter cartridge over
safety filter.
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.
Note: Oil pressure gauge, if engine is equipped, is sup-
plied by manufacturer of equipment.
CLEANING DEBRIS
When you purchase equipment
powered by a Briggs & Stratton
engine, you are assured of highly
skilled, reliable service at more than
30,000 Authorized Service Dealers
worldwide, including more than
6,000 Master Service Technicians.
Look for these signs wherever
Briggs & Stratton service is offered.
Fig. 8
EMISSION CONTROL
Daily or before every use, clean accumulated debris from
engine. Keep linkage, springs and controls clean. Keep area
around and behind muffler free of any combustible debris.
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.
Remove front carburetor cover Ê , and clean around
intake manifold and carburetor.
CAUTION: Do not use water to clean engine parts.
Water could contaminate fuel system. Low pressure
compressed air may be used, be careful not to damage
radiator fins.
You may locate your nearest Authorized Briggs &
Stratton Service Dealer in our dealer locator map on our
low Pagest " directory under ꢀEngines,
WARNING
If you perform any maintenance on the
engine, first disconnect the spark plug wires
from the spark plugs, and disconnect the
battery at the negative terminal (electric
starter engines only) to prevent unintentional
sparking. Unintentional sparking can result
in fire or electric shock. Unintentional start-
up can result in entanglement, traumatic
amputation or laceration. Use only correct
tools.
Gasoline" or ꢀGasoline Engines," or ꢀLawn
Mowers" or similar category.
™
Engine parts should be kept
WARNING
clean to reduce the risk of
overheating and ignition of ac-
cumulated debris.
An illustrated shop manual in-
cludes common specifications
and detailed information cover-
ing adjustment, tune-up and re-
pair of Briggs & Stratton OHV,
twin cylinder, 4 cycle engines. It
is available for purchase from an
Authorized Briggs & Stratton
Service Dealer or you can order
it from the factory. Write:
FUEL FILTER
WARNING
WARNING
Briggs & Stratton Corporation
Attn: Service Division
P. O. Box 1144,
•
•
Do not strike the flywheel with hammer or hard
object. If done, the flywheel may shatter during
operation.
Drain fuel tank or close fuel shut-off valve before replacing fuel
filter. Otherwise, fuel can leak out, creating a fire/explosion
hazard.When replacing fuel filter, ensure clamps are tight and
fuel flows into the same direction as the arrow marked FLOW.
Milwaukee, WI 53201
Do not tamper with governor spring, links or other
parts to increase engine speed.
PARTIAL LIST OF
GENUINE BRIGGS & STRATTON PARTS
MUFFLER/FUEL SYSTEM
SPARK PLUGS
Replacement parts for the muf-
WARNING
PART
PART NO.
fler must be the same and
Air cleaner cartridge . . . . . . . . . . . . . . . . . . . . . . 809670
Safety air cleaner cartridge . . . . . . . . . . . . . . . . . . 821136
Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100028
Oil filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 492932
Fuel filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 691035
Fuel pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 809669
Gas additive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5041
Resistor spark plug . . . . . . . . . . . . . . . . . . . . . . . 692051
Spark plug wrench . . . . . . . . . . . . . . . . . . . . . . . . . 19374
Spark tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19368
installed in the same position as
the original parts, otherwise fire
can occur.
Fig. 6
Change spark plugs yearly. Use only Briggs & Stratton
Spark Tester (part number 19368) to check for spark.
Replacement parts for fuel system (cap, hoses, tanks,
filters, etc.) must be the same as original parts,
otherwise fire can occur.
Gap spark plug to 0.76 mm (.030 in.) gap Ê.
Note: In some areas, local law requires using resistor
spark plug to suppress ignition signals. If this engine was
originally equipped with resistor spark plugs, use same
type for replacement.
STORAGE
Engines stored over 30 days need special attention.
1. To prevent gum from forming in fuel system or on
essential carburetor parts:
a) if fuel tank contains oxygenated or reformulated
VALVE CLEARANCE
Check valve clearance every 250 hours.
(See Tune-up Specifications on page 1).
Oil pump kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5056
(uses standard electric drill to remove oil from engine quickly)
gasoline (gasoline blended with an alcohol or an ether), Repair manual . . . . . . . . . . . . . . . . . . . . . . . . . . 272144
4
Briggs & Stratton Emissions Control
Defects Warranty Provisions
Briggs & Stratton Corporation (B&S),
the California Air Resources Board (CARB)
and the United States
Look For Relevant Emission
Durability Period and
Air Index Information On
Your Engine Emission Label
The following are specific provisions relative to your Emis-
sions 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.
Environmental Protection Agency (U.S. EPA)
Emissions Control System Warranty Statement
(Owner’s Defect Warranty Rights and Obligations)
Engines that are certified to meet the California Air Re-
sources Board (CARB) Tier 2 Emissions Standards must
display information regarding the Emissions Durability
Period and the Air Index. Briggs & Stratton makes this in-
formation available to the consumer on our emissions la-
bels. The engine emissions label will indicate certification
information.
1. Warranted Parts
California, United States and Canada Emissions
Control Defects Warranty Statement
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.
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, ne-
glect or improper maintenance of your small off-road en-
gine.
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 diagno-
sis, parts and labor.
a. Fuel Metering System
•
•
•
•
•
•
Cold start enrichment system (soft choke)
Carburetor and internal parts
Fuel pump
The Emissions Durability Period describes the number
of hours of actual running time for which the engine is cer-
tified to be emissions compliant, assuming proper mainte-
nance in accordance with the Operating & Maintenance
Instructions. The following categories are used:
Fuel line, fuel line fittings, clamps
Fuel tank, cap and tether
Carbon canister
b. Air Induction System
Moderate:
Engine is certified to be emissions compliant for 125 hours
of actual engine running time.
•
•
•
Air cleaner
Intake manifold
Purge and vent line
Intermediate:
Engine is certified to be emissions compliant for 250 hours
of actual engine running time.
c. Ignition System
•
•
Spark plug(s)
Magneto ignition system
d. Catalyst System
Extended:
•
•
•
Catalytic converter
Exhaust manifold
Air injection system or pulse valve
Engine is 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. There-
fore, the Emissions Durability Period of an engine with
an intermediate rating would equate to 10 to 12 years.
Briggs & Stratton Emissions Control
Defects Warranty Coverage
e. Miscellaneous Items Used in Above Systems
Small off-road engines are warranted relative to emis-
sions control parts defects for a period of two years, sub-
ject to provisions set forth below. If any covered part on
your engine is defective, the part will be repaired or re-
placed by B&S.
•
Vacuum, temperature, position, time sensitive
valves and switches
Connectors and assemblies
Certain Briggs & Stratton engines will be certified to meet
the United States Environmental Protection Agency
(USEPA) Phase 2 emissions standards. For Phase 2 cer-
tified engines, the Emissions Compliance Period referred
to on the Emissions Compliance label indicates the num-
ber of operating hours for which the engine has been
shown to meet Federal emissions requirements.
•
2. Length of Coverage
B&S warrants to the initial owner and each subsequent
purchaser that the Warranted Parts shall be free from de-
fects in materials and workmanship which caused the fail-
ure of the Warranted Parts for a period of two years from
the date the engine is delivered to a retail purchaser.
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 rec-
ommends that you retain all your receipts covering main-
tenance on your small off-road engine, but B&S cannot
deny warranty solely for the lack of receipts or for your fail-
ure to ensure the performance of all scheduled mainte-
nance.
As the small off-road engine owner, you should however
be aware that B&S may deny you warranty coverage if
your small off-road engine or a part has failed due to
abuse, neglect, improper maintenance or unapproved
modifications.
For engines less than 225 cc displacement.
Category C = 125 hours
Category B = 250 hours
3. No Charge
Repair or replacement of any Warranted Part will be per-
formed at no charge to the owner, including diagnostic la-
bor 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.
Category A = 500 hours
For engines of 225 cc or more displacement.
Category C = 250 hours
Category B = 500 hours
Category A = 1000 hours
You are responsible for presenting your small off-road en-
gine 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 ex-
ceed 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.
4. Claims and Coverage Exclusions
Warranty claims shall be filed in accordance with the pro-
visions of the B&S Engine Warranty Policy. Warranty cov-
erage shall be excluded for failures of Warranted Parts
which are not original B&S parts or because of abuse, ne-
glect or improper maintenance as set forth in the B&S En-
gine Warranty Policy. B&S is not liable to cover failures of
Warranted Parts caused by the use of add-on, non-origi-
nal, or modified parts.
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.
5. Maintenance
Any Warranted Part which is not scheduled for replace-
ment 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 war-
ranty 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 re-
pairs. 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 en-
gine components caused by the failure of any Warranted
Part still under warranty.
5
BRIGGS & STRATTON ENGINE OWNER WARRANTY POLICY
Effective 12/06
LIMITED WARRANTY
Briggs & Stratton Corporation will repair or replace, free of charge, any part(s) of the engine that is defective in material or workmanship or both.
Transportation charges on parts submitted for repair or replacement under this warranty must be borne by purchaser. This warranty is effective for
and is subject to the time periods and conditions stated below. For warranty service, find the nearest Authorized Service Dealer in our dealer
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 IM-
PLIED WARRANTIES ARE EXCLUDED. LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARE EXCLUDED TO THE EXTENT
EXCLUSION IS PERMITTED BY LAW. Some states or countries do not allow limitations on how long an implied warranty lasts, and some states or
countries do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation and exclusion may not apply to
you. This warranty gives you specific legal rights and you may also have other rights which vary from state to state and country to country.
WARRANTY TERMS **
Brand/Product Type
Vanguard
Consumer Use
2 years
Commercial Use
2 years
t
Extended Life Seriest , I/CR , Intek I/CR , Intek Pro
t
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 pur-
poses 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 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 han-
dled routinely, but sometimes requests for warranty service may
not be appropriate. For example, warranty would not apply if en-
gine damage occurred because of misuse, lack of routine main-
tenance, shipping, handling, warehousing or improper installa-
tion. 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 mis-
understanding 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.
This warranty covers engine related defective material and/
or workmanship only, and not replacement or refund of the
equipment to which the engine may be mounted. Nor does
the warranty extend to repairs required because of:
1. PROBLEMS CAUSED BY PARTS THAT ARE NOT
ORIGINAL BRIGGS & STRATTON PARTS.
2. Equipment controls or installations that prevent starting,
cause unsatisfactory engine performance, or shorten en-
gine life. (Contact equipment manufacturer.)
3. Leaking carburetors, clogged fuel pipes, sticking valves,
or other damage, caused by using contaminated or stale
fuel. (Use clean, fresh, lead-free gasoline and Briggs &
Stratton Fuel Stabilizer, Part No. 5041.)
4. Parts which are scored or broken because an engine was
operated with insufficient or contaminated lubricating oil,
or an incorrect grade of lubricating oil (check oil level daily
or after every 8 hours of operation. Refill when necessary
and change at recommended intervals.) OIL GARD may
not shut down running engine. Engine damage may occur
if oil level is not properly maintained. Read Operating &
Maintenance Instructions.
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, im-
proper attachment of equipment to engine crankshaft,
over-speeding or other abuse in operation.
9. A bent or broken crankshaft, caused by striking a solid ob-
ject with the cutter blade of a rotary lawn mower, or exces-
sive 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.
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 be-
cause of improper maintenance, is not covered by warranty.
5. Repair or adjustment of associated parts or assemblies
such as clutches, transmissions, remote controls, etc.,
which are not manufactured by Briggs & Stratton.
6. Damage or wear to parts caused by dirt, which entered
the engine because of improper air cleaner maintenance,
re-assembly, or use of a non-original air cleaner element
or cartridge. (At recommended intervals, clean and re-oil
the Oil-Foam element or the foam pre-cleaner, and
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 Mow-
ers," or similar category.
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
6
Fig. 4
Fig. 7
Ê
Î
Í
Ì
Ë
Í
Ë
Ê
Fig. 5
Ê
Ì
Ë
Ë
Ê
Fig. 6
Fig. 8
Ê
Ê
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