Briggs & Stratton 470000 User Manual

Operator’s Manual

Model 470000 Model 610000

Vanguard

Vanguard

BRIGGSandSTRATTON.com

ECopyright Briggs & Stratton Corporation

Milwaukee, Wisconsin 53201 U.S.A.

Form No. 277111-9/06

Printed in U.S.A.

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.

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.

Fire

Explosion

Kickback

Hot Surface

Toxic F u mes

Moving Parts

Shock

Stop

Slow Fast

Read
Manual

Oil

Fuel

Hot Liquid or
Steam

Fuel Shutoff

On Off

Run

Choke

Table of Contents

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

Engine Features 3. . . . . . . . . . . . . . . . . . .

Starting Engine and Safety 4. . . . . . . . . .

Operating Engine 5. . . . . . . . . . . . . . . . . .

Stopping Engine 5. . . . . . . . . . . . . . . . . . .

Troubleshooting 6. . . . . . . . . . . . . . . . . . . .

Oil 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fuel 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Coolant 10. . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications/Emission Information 11.

Engine Maintenance 12. . . . . . . . . . . . . . .

Service/Storage 16. . . . . . . . . . . . . . . . . . .

Warranty Information/Emission 17. . . . . .

2

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.

Engine Features

1. Oil Pressure Sensor

2. Spark Plug (2 locations)

3. Choke Control

4. Muffler

5. Throttle Control (2 possible locations)

6. Fuel Pump (Model 470000 equipped with 1;
Model 610000 equipped with 2)

7. Air Cleaner

8. Radiator and Radiator Cap

9. Radiator Screen and Handle

10. Fuel Filter

4

3

2

1

5

7

11. Oil Fill Cap

12. Dipstick

13. Oil Drain Plug (2 locations)

14. Starter

15. Starter Solenoid

16. Fan Belt

17. Radiator Drain Plug

18. Radiator Reservoir

19. Oil Filter

20. Engine Model Label
Model − Type − Code

8

9

20

19

13

18

17

6

11

10

2

16

12

15

14

13

3

Before Starting Engine

Safety − When Starting Engine

1. This engine is shipped without coolant and oil.
Follow the instructions on adding coolant (page

10) and oil (page 7) before starting or running
engine.

Starting Engine

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

3. Move choke control to CHOKE or START.

4. Move throttle (if equipped) to FAST.

CAUTION

If you start the engine without oil and/or
coolant, the engine may be damaged beyond
repair and will not be covered under warranty.

WARNING

• DO NOT crank engine with spark plug
removed.

• DO NOT start engine if there is a
natural or LP gas leak in area.

• Make sure spark plug, muffler, fuel cap
and housings are in place and firmly
secured by equipped fasteners.

• Do not use pressurized starting fluids
because vapors are flammable.

WARNING

Broken bones, fractures, bruises or
sprains could result.

Rapid retraction of starter cord
(kickback) will pull hand and arm
toward engine faster than you can
let go.

5. Push rocker switch (if equipped) to ON or RUN.

6. Insert key and turn to START. Release key when
engine starts.

7. Let engine warm up before using equipment.

Note: If choke equipped, slowly adjust toward RUN

position. Wait until engine runs smoothly before
each choke adjustment.

• 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.

CAUTION

To prolong starter life, use short starting cycles
(5 seconds maximum, then wait one minute).
Follow equipment manufacturer’s
recommendations for charging battery.

4

Operating Engine

• 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

Running engines produce heat.
Engine parts, especially muffler,
become extremely hot.

Severe thermal burns can occur
on contact.

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

• Allow muffler, engine cylinder and fins to cool
before touching.

• Remove accumulated combustibles from
muffler area and cylinder area.

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

WARNING

Rotating parts can contact or
entangle hands, feet, hair,
clothing, or accessories.

Traumatic amputation or severe
laceration can result.

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.

WARNING

Engines give off carbon monox­ide, an odorless, colorless, poison
gas.

Breathing carbon monoxide can
cause nausea, fainting or death.

WARNING

• The manufacturer of equipment on
which this engine is installed specifies
top speed at which engine will be
operated. DO NOT EXCEED this speed.

Stopping Engine

1. Move throttle to SLOW (if equipped).

2. Turn key to OFF. Remove key and store out of
reach of children.

3. Push rocker switch (if equipped) to OFF or STOP.

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

WARNING

• Do not stop engine by moving choke
control to CHOKE. Backfire, fire or
engine damage could occur.

5

Troubleshooting

Engine Will Not Start

Out of Fuel

• Add fuel to tank.

• Prime engine.

• Open shut-off valve

CAUTION

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

Engine Flooded

• Set choke (if equipped) to OPEN/RUN position,
throttle to FAST and crank engine.

Spark Plug Fouling

• Check to ensure the spark plug is clean. Check
the gap with a wire gage and reset to .51 mm or
.020 in. if necessary.

• Replace the spark plug if the electrode is burned
or worn.

Engine is Smoking or Running
Rough

Engine may have been tipped during
transport.

• Check for fouled spark plug.

• Check air cleaner filter. If filter is dirty see the

Maintenance section of this manual.

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.

CAUTION

If engine is tipped to transport equipment, to
remove debris, to drain oil, etc., keep the spark

plug side of engine up.

Need assistance? 1-800-233-3723

(USA and Canada ONLY, Pre-recorded message.)

www.briggsandstratton.com

6

Oil

Capacity

The engine holds approximately 2.5 quarts (2.4 liters).

Oil Recommendation

• Use a high quality detergent oil classified “For
Service SG, SH, SJ, SL” or higher, such as Briggs &
Stratton 30, Part Number 100005 (20 oz) or 100028
(48 oz).

• Do not use special additives.

• Do not mix gasoline with oil.

• Choose a viscosity according to the table.

Checking Oil Level

• Check oil level before starting the engine.

• Keep oil level at FULL. Do not overfill.

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







SAE Viscosity Grades

**

**

*

*

32

-20 0 20 40 60 80 100

-20 0 20 40 60 80 100

°F

°F

-30 -20 -10 0 10 20 30 40

-30 -20 -10 0 10 20 30 40

°C

°C

STARTING TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

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.

32

CAUTION

* Use of SAE 30 oil below 40° F (4° C) will result in hard

starting and possible engine damage due to inadequate
lubrication.

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.



1. Place engine level. Clean around oil fill  and oil

fill cap

.

2. Remove dipstick  and wipe clean with cloth.

3. Push dipstick back in and remove to check oil
level. Oil level should be at FULL mark  on
dipstick.

4. If oil is needed, add it slowly.

5. Fill to FULL mark  on dipstick − recheck.

6. Replace oil fill cap and dipstick firmly.

Adding Oil to New Engine or After
Filter Change

1. First add 2 quarts (2 liters).

2. Start and run engine at idle for 30 seconds. See

Starting Instructions.

3. Shut engine off and wait 30 seconds.

4. Add more oil slowly to bring level to FULL mark
on dipstick.

5. Replace oil cap and dipstick.

7

Changing Oil and Oil Filter

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. With engine OFF but still warm, remove oil drain
plug

 and drain oil into appropriate receptacle.

Reinstall drain plug.

2. Remove oil filter . Before installing new filter,
lightly oil filter gasket with fresh, clean oil.

3. Screw filter on by hand until gasket contacts oil
filter adapter. Tighten 1/2 to 3/4 turn more.

4. Place engine level and follow Adding Oil
Instructions (page 7) to add fresh oil.

5. Replace oil fill cap and dipstick.

CAUTION

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

Oil Pressure

If oil pressure is low, an oil pressure switch (if 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.

Note: Oil pressure gage (if equipped) is supplied by

manufacturer of equipment.

8

Fuel

Type of Fuel to Use

• Use clean, fresh, regular unleaded gasoline with a
minimum of 85 octane. Fresh fuel prevents gum from
forming in the fuel system or on essential carburetor
parts. Purchase fuel in quantity that can be used
within 30 days.

• 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. Remove cap. Fill tank to approximately 1-1/2
inches below top of neck to allow for fuel
expansion. Be careful not to overfill.

2. 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.

WARNING

Starting engine creates sparking.
Fuel vapors are extremely
flammable and explosive. Fire or
explosion can cause severe
burns or death.

• Do not use pressurized starting fluids

• Fuel equipment outdoors, away from

open flames, sparks and other ignition
sources, such as appliances with pilot
lights.

• Store fuel away from ignition sources.

WARNING

• Turn engine OFF and let engine
cool at least 2 minutes before
removing fuel cap.

• Fill fuel tank outdoors or in
well-ventilated area.

• Do not overfill fuel tank. Fill tank to
approximately 1-1/2 inches below
top of neck to allow for fuel
expansion.

• If fuel spills, wait until it evaporates
before starting engine.

• Keep gasoline away from sparks,
open flames, pilot lights, heat, and
other ignition sources.

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

9

Coolant

• A 50/50 mixture is required of phosphate-free
antifreeze and tap water for heat dissipation, rust
resistance and lubrication.

• Normal reading on coolant temperature gauge (if
equipped) should be 175_ to 195_F (80_ to 90_C)
when engine is running.

• If coolant temperature rises above 220_ F (105_ C),
the temperature light (if equipped) will illuminate.
Idle engine down for a while. Then stop engine.
Once engine is cooled, check coolant level, fan belt
tension and clean any clogged radiator fins.

Adding Coolant

1. Fill radiator to bottom of filler neck and fill
reservoir between FULL and LOW
radiator cap.



2. Start and run engine for 30 seconds. See Starting
Instructions.

3. Shut engine off to allow it to cool. Recheck
coolant levels in radiator and reservoir.

Changing Coolant

Coolant should be replaced every year, unless an
approved extended life coolant is used. Then replace
every 3000 hours.

. Replace

WARNING

• Do not touch radiator or open radiator
cap, or open radiator reservoir when
engine is hot or running.

• Allow engine to cool before changing
or adding coolant.

WARNING

Never remove radiator cap or
radiator reservoir cap while the
engine is hot or running. Severe
thermal burns or injury can occur by
escaping steam or hot engine
coolant.

• Stop engine and allow to cool before
removing radiator or reservoir cap.

• To remove reservoir cap after engine is
cool, place a thick cloth over the cap
and remove it slowly.

• To remove radiator cap after engine is
cool, place a thick cloth over cap and
rotate it slowly counter-clockwise to the
first stop. Pressurized steam may emit
from the cap, stand back to avoid injury.
Once all pressure is released, rotate
cap counter-clockwise while pushing
down on cap to remove.







1. Remove drain plug . As coolant is running out,

open radiator cap  to allow any trapped coolant
to drain. Replace drain plug.

2. Remove reservoir bottle

3. Fill radiator to bottom of filler neck and reservoir
bottle between FULL and LOW. Replace radiator
cap.

4. Start and run engine for 30 seconds.

5. Shut engine off and allow it to cool. Recheck
coolant levels in radiator and reservoir.

, drain it and reinstall.

CAUTION

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

10

Engine Specifications

We recommend that you contact 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 470000 engines are
certified by the California Air Resources Board to meet
emissions standards for 250 hours. Model 610000
engines are certified 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.

Model 470000

Bore 3.19 in. (81 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Stroke 2.87 in. (73 mm). . . . . . . . . . . . . . . . . . . . . . . . . . .

Displacement 45.9 cu. in. (752 cc). . . . . . . . . . . . . . . . . .

Model 610000

Bore 3.36 in. (85.5 mm). . . . . . . . . . . . . . . . . . . . . . . . . . .

Stroke 3.40 in. (86.5 mm). . . . . . . . . . . . . . . . . . . . . . . . .

Displacement 60.6 cu. in. (993 cc). . . . . . . . . . . . . . . . . .

Tune up Specifications

Armature air gap 0.005 − 0.007 in. (0.13 − 0.18 mm). .

Spark plug gap 0.020 in. (0.51 mm). . . . . . . . . . . . . . . . .

Valve clearance with valve springs installed and piston 1/4
in. (6 mm) past top dead center (check when engine is
cold).

Intake 0.007 − 0.010 in. (0.18 − 0.25 mm). . . . . . . . . . . .

Exhaust 0.007 − 0.010 in. (0.18 − 0.25 mm). . . . . . . . . .

Note: For practical operation, the horsepower loading

should not exceed 85% of rated horsepower. Engine
power will decrease 3-1/2% for each 1,000 feet (300
meters) above sea level and 1% for each 10° F (5.6° C)
above 77° F (25° C). It will operate satisfactorily at an
angle up to 25°.

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, see Engine Features
(page 3).

Model

Type

Code

Month/Day/Year

Technical Information

Engine Power Rating Information

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

Emission Information

Engines that are certified to meet the California Air
Resources Board (CARB) Tier 2 Emission Standards
must display information regarding the Emissions
Durability Period and the Air Index. Briggs & Stratton
makes this information available to the consumer on
our emission labels. The engine emission label will
indicate certification information.

The Emissions Durability Period describes the
number of hours of actual running time for which the
engine is certified to be emissions compliant, assuming
proper maintenance in accordance with the Operating
& Maintenance Instructions. The following categories
are used:

Moderate:

Engine is certified to be emission compliant for 125
hours of actual engine running time.

Intermediate:

Engine is certified to be emission compliant for 250
hours of actual engine running time.

Extended:

Engine is certified to be emission compliant for 500
hours of actual engine running time. For example, a
typical walk-behind lawn mower is used 20 to 25 hours
per year. Therefore, the Emissions Durability Period
of an engine with an intermediate rating would equate
to 10 to 12 years.

Certain Briggs & Stratton engines will be certified to
meet the United States Environmental Protection
Agency (USEPA) Phase 2 emission standards. For
Phase 2 certified engines, the Emissions Compliance
Period referred to on the Emissions Compliance label
indicates the number of operating hours for which the
engine has been shown to meet Federal emission
requirements.

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

11

Engine Maintenance

Regular maintenance will improve the performance and
extend the life of the engine. Contact 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.

Follow the instructions and
schedule below.

Task

Perform task at hourly
or calendar interval,
whichever comes first.

Check oil level

Clean radiator

Check coolant level

Clean spark arrestor (if equipped)

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.

Change oil and oil filter **

Clean air filter cartridge*

Check fan belt

Check valve clearance

Check battery electrolyte

Replace air filter cartridge*

Change fuel filter

Change spark plugs

Change coolant ***

Replace safety air filter cartridge
(if equipped)*

* Clean more often under dusty conditions or when airborne debris is present. Replace air filter, 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. Check valve clearance after first 50 hours of use, then every
250 hours.

*** If an extended life coolant is used, interval may be increased to once every 3000 hours.

12

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.

• 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.

CAUTION

Operation of this engine is for the application it
was intended for. All the components used to
build this engine assembly must remain in
place for the proper operation of this engine.

Air Cleaner

Clean air filter cartridge every 100 hrs. To clean cartridge,
gently tap on end with handle of screwdriver. Replace
cartridge every 400 hours. Clean and replace more often
under dusty conditions. Do not remove inner safety

cartridge
entering carburetor when outer cartridge is removed.
Replace safety cartridge every 1200 hrs.

 (if equipped), which prevents dirt from

1. Unlock clamps

2. Remove cartridge
and inspect. Replace if very dirty or any damage
occurs to cartridge.

3. Carefully clean out cover.

4. Install cartridge in body.

5. Install cover with rubber valve down and lock
clamps.

 and remove cover .

 from air cleaner body, 

CAUTION

Do not use pressurized air or solvents to clean
cartridge. Pressurized air can damage
cartridge; solvents will dissolve cartridge.













13

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 gage  and reset to .51 mm or 0.020 in.

if necessary.

 is burned



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.

Fan Belt

• Check condition of fan belt for fraying, cracking or
cuts.

• Replace if damaged or worn.

To Adjust Fan Belt Tension

1. Loosen bolt  and bolt .

2. Fit torque wrench in the square torque hole
located on the bracket.

3. Apply 115 in-lbs of torque in direction shown.

4. Hold tension per step 3 and torque bolt
bolt

 to 135 in-lbs.



 and











Fuel Filter

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 in same direction as FLOW arrow on
filter.

14

WARNING

Replacement parts for fuel system (cap,
hoses, tanks, filters, etc.) must be the
same as original parts, otherwise fire can
occur.

Cleaning Debris

Daily or before every use, clean accumulated debris
from engine. Keep linkage, spring and controls clean.

Use handle
cleaning. Clean screen thoroughly and clean radiator
fins.

 on the radiator screen  to lift off for





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.

WARNING

• Engine parts should be kept clean
to reduce the risk of overheating
and ignition of accumulated debris.

Muffler

WARNING

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

Valve Clearance

Check valve clearance every 250 hours. Contact an
Authorized Briggs & Stratton Service Dealer for this
maintenance.

Need assistance? 1-800-233-3723

(USA and Canada ONLY, Pre-recorded message.)

www.briggsandstratton.com

15

Service

Contact an Authorized Briggs & Stratton Service
Dealer. Each one carries a stock of genuine Briggs &
Stratton parts and is equipped with special service
tools. Trained mechanics assure expert repair service
on all Briggs & Stratton engines. Only dealers
advertising as “Authorized Briggs & Stratton” are
required to meet Briggs & Stratton
standards.

When you purchase equipment powered by a Briggs &
Stratton engine, you are assured of highly skilled,
reliable service at more than 30,000 Authorized Service
Dealers worldwide, including more than 6,000 Master
Service Technicians. Look for these signs wherever
Briggs & Stratton service is offered.

You can find your nearest Authorized Briggs & Stratton
Service Dealer through our Dealer Locator on our web
site

www.briggsandstratton.com

or in the “Yellow Pages™” directory under “Engines,
Gasoline” or “Gasoline Engines,” or “Lawn Mowers” or
similar category.

Note: Walking fingers logo and “Yellow

™

Pages” are registered trademarks in
various jurisdictions.

PARTIAL LIST OF

GENUINE BRIGGS & STRATTON

MAINTENANCE PARTS

PART PART NO.

Air Cleaner Cartridge (Model 473100) 820263. . . . . . . .

Air Filter Cartridge (all other Models) 841497. . . . . . . . .

Safety Cartridge, if equipped 821136. . . . . . . . . . . . . . . .

Oil 100028. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Oil Filter 492932. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fuel Filter (1-1/4 in.) 691035 or (2-1/4 in.) 695666. . . .

Fan Belt 807243. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gas Additive 5041. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Resistor Spark Plug 692051. . . . . . . . . . . . . . . . . . . . . . .

Spark Plug Wrench 19374. . . . . . . . . . . . . . . . . . . . . . . . .

Spark Tester 19368. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Repair Manual 275429. . . . . . . . . . . . . . . . . . . . . . . . . . . .

An illustrated shop manual includes common
specifications and detailed information covering
adjustment, tune-up and repair of Briggs & Stratton
liquid-cooled V-Twin OHV engines. It is available for
purchase from an Authorized Briggs & Stratton Service
Dealer or you can order it from

www.briggsandstratton.com.

Storage

If engine is to be stored over 30 days, prepare as
follows:

1. 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. If you use a gasoline
additive, run the engine for several minutes to
circulate through the carburetor. Engine and
fuel can be stored up to 24 months with
additive.

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. Re-install spark
plugs and crank engine slowly to distribute oil.

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

WARNING

When storing gasoline or equipment
with fuel in the tank:

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

When Transporting Equipment:

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

16

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

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.

3. Leaking carburetors, clogged fuel pipes, sticking
valves, or other damage, caused by using
contaminated or stale fuel.

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 and 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.

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 and/or replace
the filter as stated in the Operator’s Manual.

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.)

, and not

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 engine debris
at recommended intervals as stated in the
Operator’s Manual.

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 service is available only through
authorized service dealers by Briggs & Stratton
Corporation. Locate your nearest Authorized
Service Dealer in our dealer locator map on
www.briggsandstratton.com or by calling
1-800-233-3723, or as listed in the ’Yellow Pagest’.

18

BRIGGS & STRATTON ENGINE OWNER WARRANTY POLICY

Effective September 1, 2006

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 product submitted for repair or replacement
under this warranty must be borne by purchaser. This warranty is effective for and is subject to the time
periods and conditions stated below. For warranty service, find the nearest Authorized Service Dealer in
our dealer locator map at 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 2 years 1 year
I/C, or Intek I/C, Intek Pro 2 years 180 days
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