Briggs & Stratton Engine Model 400000 440000 MS3874 Instructions Manual

							Operating & Maintenance Instructions
Èíñòðóêöèè çà ðàáîòà è òåõíè÷åñêî îáñëóæâàíå
Upute za koričtenje i odrďavanje
Návod k obsluze a údrďbì
Kasutus− ja hooldusjuhend
Kezelési és karbantartási útmutató
Naudojimo ir aptarnavimo instrukcija
LietoĠanas un apkopes instrukcija
Instrukcja Obs³ugi i Konserwacji
Instrucþiuni de utilizare ºi de întreþinere
Èíñòðóêöèè ïî ýêñïëóàòàöèè è òåõíè÷åñêîìó îáñëóæèâàíèþ
Navodila za uporabo & vzdrďevanje
GB
BG
CZ
CR
EE
LT
PL
RO
SL
RU
LV
H
BRIGGSandSTRATTON.com Copyright Briggs & Stratton Corporation
Milwaukee, Wisconsin 53201 U.S.A.Form No. MS-3874-3/07
Printed in U.S.A.
Intek 
Extended Life SeriesModel 400000 Model 440000Intek 
Extended Life Series 
						

							






 




°C -30°F-20 020 40 60 80 100
-20 -10 0 10 20 30 40
*
**
32
2
1
7
3
4
5
6
891011
12
13
13
14
2
6 
						

							GB
GB
1
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.
How To Use Manual Figures
−refer to figures inside covers.
− refer to engine components in figure
 .
−refer to part/action in figures.
191
Record your engine
 Model, Type and Code numbers
here for future use.
Record your date of purchase here for future use.
In the state of California, OHV Model 400000 and
440000 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 opera-
tional life of this engine. This engine is warranted solely
according to the product and emissions warranties
stated elsewhere in this manual.
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 perfor-
mance 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 condi-
tions (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.
Engine Components (see fig. )
1
Rotating screen
2
Oil fill/Dipstick
3
12V electric starter
4
Fuel filter (if equipped)
5
Oil drain plug
6
Spark plug wire
7
Fuel pump
8
Air cleaner
9
Intake manifold
10
Choke control bracket
11
Carburetor
12
Throttle control bracket
13
Engine Model Type Code
xxxxxx xxxx xx xxxxxxxx
14
Oil filter
Hazard Symbols and Meanings
Explosion
Toxic Fumes
Moving PartsShock Hot Surface
Kickback Fire
International Symbols and Meanings
On Off
Fuel Shutoff Read Owner’s
ManualStop
FuelChoke Safety Alert
Oil
Safety Precautions
* Briggs & Stratton does not necessarily know what
equipment 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.
BEFORE OPERATING ENGINE
•Read entire Operating & Maintenance Instructions
AND the instructions for the equipment this engine
powers.*
•Failure to follow instructions could result in serious
injury or death.
THE OPERATING & MAINTENANCE
INSTRUCTIONS CONTAIN SAFETY
INFORMATION TO
•Make you aware of hazards associated with engines
•Inform you of the risk of injury associated with those
hazards, and
•Tell you how to avoid or reduce the risk of injury.
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.
The engine exhaust from this product contains
chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.
WARNING
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. Fill tank to approximately
1-1/2 inches below top of neck to allow for fuel
expansion.
•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 tip engine or equipment at angle which
causes gasoline to spill.
•Do not choke carburetor to stop engine.
WHEN TRANSPORTING EQUIPMENT
•Transport with fuel tank EMPTY or with fuel shut-off
valve OFF.
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. 
						

							GB
2
Unintentional  sparking can result in fire or electric
shock.
Unintentional start-up can result in entanglement,
traumatic amputation, or laceration.
BEFORE PERFORMING ADJUSTMENTS OR RE-
PA I R S
•Disconnect spark plug wire and keep it away from
spark plug.
•Disconnect battery at negative terminal (only
engines with electric start).
WHEN TESTING FOR SPARK
•Use approved spark plug tester.
•Do not check for spark with spark plug removed.
WARNING
Engines give off carbon monoxide, an odorless,
colorless, poison gas.
Breathing carbon monoxide can cause nausea,
fainting or death.
•Start and run engine outdoors.
•Do not start or run engine in enclosed area, even if
doors or windows are open.
WARNING
Starting engine creates sparking.
Sparking can ignite nearby flammable gases.
Explosion and fire could result.
•If there is natural or LP gas leakage in area, do not
start engine.
•Do not use pressurized starting fluids because
vapors are flammable.
WARNING
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.
•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
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.
•Remove all external equipment/engine loads
before starting engine.
•Direct coupled equipment components such as, but
not limited to, blades, impellors, pulleys, sprockets,
etc., must be securely attached.
WARNING
Oil Recommendations (see fig. )
Engine shipped from Briggs & Stratton without
 oil.
Before starting engine, fill with oil. Do not over-fill.
Use a high quality detergent oil classified For Service
SF, SG, SH, SJ" or higher such as Briggs & Stratton
30W, Part Number 100005 (20 oz.) or 100028 (48 oz.).
Use no special additives with recommended oils. Do
not mix oil with gasoline.
Choose the SAE viscosity grade of oil from this chart
that matches the starting temperature anticipated
before the next oil change. (see fig. 
)
Note:Synthetic oil meeting ILSAC
GF-2, API certification mark and API ser-
vice 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.
*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.
**Use of SAE 30 oil below 40° F (4° C) will result in
hard starting and possible engine damage due to
inadequate lubrication.
Check oil level (see fig. 
)
Oil capacity is about 1.8 liters (60 ounces) if engine is
not
 equipped with oil filter. Oil capacity is about 1.9 liters
(64 ounces) if engine is equipped with oil filter.
Note: Oil capacity will be greater if engine is equipped
with remote
 oil filter.
Place engine level and clean around oil fill 
.
Remove dipstick 
, wipe with clean cloth, insert and
tighten down again. Remove dipstick and check oil level.
Oil should be at FULL mark 
. If oil is required, add
slowly. Tighten dipstick firmly before starting engine.
After filling with or changing oil, start and run engine at
idle for 30 seconds. Shut engine off. Wait 30 seconds
and check oil level. Check for oil leaks. Add oil, if
required, to bring level to FULL mark on dipstick.
Fuel Recommendations
Use clean, fresh, regular lead-free gasoline with a
minimum of 85 octane. Leaded gasoline may be used if
it is commercially available and if unleaded is unavail-
able. Purchase fuel in quantity that can be used within
30 days. See Storage.
In U.S.A. leaded gasoline may not be used. Some
fuels, called oxygenated or reformulated gasolines, are
gasolines 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.
This engine is certified to operate on gasoline. Exhaust
Emission Control System: EM (Engine Modifications).
Do not use gasoline which contains Methanol. Do not
mix oil with gasoline.
For engine protection, we recommend using Briggs &
Stratton Fuel Stabilizer available from an Authorized
Briggs & Stratton Service
 Dealer. 
						

							GB
3
Check fuel level.
Before refueling, allow
engine to cool 2 minutes.
Clean around fuel fill before removing cap to refuel.
Remove cap. Fill tank to approximately 1-1/2 inches
below top of neck to allow for fuel expansion. Be careful
not to overfill.
Starting (see figs. )
ALWAYS KEEP HANDS AND FEET
CLEAR OF EQUIPMENT MOVING PARTS.
Do not use a pressurized starting
fluid. Vapors are flammable.
Start, store and fuel lawn mower in level position. Start
lawn mower on hard surface or over previously cut
grass.
Check oil level.
Open fuel shut-off valve, if equipped.
Before starting engine
 (see fig. )
If engine runs low on oil, an oil pressure switch (if
engine is equipped) will activate a warning light. (Read
the operating instructions supplied by the equipment
manufacturer.) See Oil pressure.
1. Open fuel shut-off valve, if equipped.
2. Move choke control to CHOKE position 
.
Note: If engine does not start, remove air cleaner to check
choke. Choke must fully close. If not, see Adjustments.
3. Move throttle control 
 to FAST position.
Electric starter
 (see fig. )
Turn key to START position 
 or press button .
Repeat if necessary with choke off and throttle control
in FAST position. Operate engine with choke off and
throttle in FAST position.
Note: If equipment manufacturer has supplied battery,
charge it before trying to start engine, as equipment
manufacturer recommends. Use short starting cycles
(15 secs. per min.) to prolong starter life. Extended
cranking can damage starter motor.
CAUTION:If engine is equipped with battery for electric
starter, do not operate engine with battery disconnected.
Stopping (see fig. )
Do not move choke control to CHOKE to stop engine.
Backfire or engine damage may occur. Move throttle
control to IDLE or SLOW position, then to STOP 
 or
turn key to OFF 
.
Always remove key from switch when equipment is not
in use or left unattended.
When engine or equipment is trans-
ported, close fuel shut-off valve, if
equipped, to prevent fuel leakage.
Maintenance (see figs. 	)
Also, see Maintenance Schedule. Follow the hourly or
calendar intervals, whichever occur first
. More frequent
service is required when operating in adverse conditions.
See any Authorized Briggs & Stratton Dealer for correct
replacement parts.
To prevent acci-
dental starting, re-
move spark plug
wire  and
ground it before
servicing, and dis-
connect battery at negative terminal, if equipped.
Oil service
 (see fig. )
Check oil level regularly.
Be sure correct oil level is maintained. Check every 8
hours or daily, before starting engine. See oil filling
procedure, Oil Recommendations.
Change oil.
Change oil after first 8 hours of operation. Change oil
while engine is warm. Refill with new oil of recom-
mended SAE viscosity grade. (see fig. 
)
Change oil filter 

Replace oil filter after every 100 hours of operation or
every season, whichever occurs first. Before installing
new filter, lightly oil filter gasket with fresh, clean engine
oil. Screw filter on by hand until gasket contacts oil filter
adapter. Tighten 1/2 to 3/4 turn more. Start and run
engine at IDLE to check for oil leaks. Stop engine.
Recheck oil level and add oil if required.
Oil pressure
If oil pressure drops below 4-6 psi (.2-.4 kg/cm
2), 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.
Note: Oil pressure gauge, if engine is equipped, is
supplied by manufacturer of equipment.
Spark plug service
 (see fig. )
DO NOT check for spark
with spark plugs removed.
Use only Briggs & Stratton
Spark Tester , to check
for spark.
DO NOT crank engine with spark plug removed. If
engine is flooded, place throttle in FAST and crank until
engine starts.
Spark plug gap 
 should be .76 mm or 0.030 in.
Replace spark plugs every season. Spark tester and
spark plug wrench are available from any Authorized
Briggs & Stratton Service Dealer.
Note: In some areas, local law requires using a resistor
spark plug to suppress ignition signals. If this engine
was originally equipped with resistor spark plug, use
same type of spark plug for replacement.
Maintenance Cont’d
Air cleaner, dual element
Replace pre-cleaner or cartridge if very dirty or damaged.
To service pre-cleaner, wash in liquid detergent and
water. Squeeze dry in a clean cloth. Saturate in engine
oil. Squeeze in clean, absorbent cloth to remove
excess oil.
1. See illustrations (see fig.
 	) for disassembly
and reassembly of your air cleaner style.
2. Carefully remove air cleaner cartridge and pre-
cleaner, preventing debris from entering carbure-
tor.
3. Install pre-cleaner (if equipped) in base with
mesh side up.
4. Install cartridge on pre-cleaner.
5. Replace cover. To ensure proper fit, tabs must be
hooked into slots. Tabs are painted a different
color in some instances.
6. Latch handle or tighten knobs completely to
secure cover.
CAUTION: Improper installation of air cleaner
cover may cause damage to engine.
EXTENDED LIFE 
SERIES™ CARTRIDGE ONLY
This filter, IF STAMPED
‘WASHABLE’, can be
washed with mild soap in
warm water. IMPORTANT:
Rinse in tap water with
SCREEN side up allowing
dirt and debris to filter out.
Leave filter to dry overnight
before reinstalling.
Keep engine clean (see fig. )
Periodically remove grass/chaff buildup from engine.
Do not spray engine with water because water could
contaminate fuel. Use a brush or compressed air.
Accumulation of debris around ex-
haust manifold/muffler 
 could
cause a fire. Inspect and clean
before every use.
Keep linkage, springs and controls 
 free of debris.
If muffler is equipped with spark arrester screen, remove
spark arrester screen for cleaning and inspection every 50
hours or every season. Replace if damaged.
Replace in-line fuel filter  every
season. Drain fuel tank or close fuel
shut-off valve before replacing filter.
Grass or chaff may clog engine’s air cooling system,
especially after prolonged service cutting tall, dry grass.
Every 100 hours or every season remove rotating
screen, air cleaner cover
 and blower housing  to clean
internal cooling fins and surfaces to prevent overheat-
ing and engine damage. To prevent debris from
entering carburetor, it is important to cover the carbure-
tor air intake 
 located above and behind carburetor
(inset) when cleaning cooling system.
Check valve clearance (intake and exhaust .10-.15mm) 
						

							GB
4
 Maintenance Schedule
Follow the hourly or calendar intervals, whichever
occur first. More frequent service is required when
operating in adverse conditions noted below.
First 8 Hours

Change oil
Every 8 hours or daily

Check oil level

Clean around muffler, linkage and springs
Every 25 hours or every season

Change oil if operating under heavy load or
high ambient temperature

Replace air cleaner pre-cleaner*
Every 50 hours or every season

Change oil

Clean Extended Life Series™ air cleaner
cartridge.*

Clean and inspect spark arrester, if equipped
Every 100 hours or every season

Service air cleaner cartridge*

Replace oil filter, if equipped

Clean cooling system*
Every 200 hours or every season

Replace Extended Life Series™ air cleaner
cartridge*
Every season

Replace spark plugs

Replace in-line fuel filter

Check valve clearance
*Clean more often under dusty conditions, or
when airborne debris is present or after
prolonged operation cutting tall, dry grass.
Partial List of Genuine Briggs & Stratton Parts
Part
Part No.
Oil (20 oz.) 100005. . . . . . . . . . . . . . . . . . . . . . . . 
Oil (48 oz.) 100028. . . . . . . . . . . . . . . . . . . . . . . . 
Extended Life Series™ Oil filter 696854. . . . . . . . . . 
Oil filter (6 cm long) 492932 -or- 5049. . . . . . . . . . . 
Oil pump kit (uses standard electric drill  5056. . . . 
to remove oil from engine quickly)
Fuel stabilizer (1 oz., 30 ml single use pouch) 992030
Fuel stabilizer (4.2 oz., 125 ml bottle) 5041. . . . . . . 
Fuel filter 493629. . . . . . . . . . . . . . . . . . . . . . . . . 
Oval Air cleaner cartridge 792105. . . . . . . . . . . . . . 
Extended Life Series™ air cleaner cartridge 695667. 
Air cleaner cartridge 499486. . . . . . . . . . . . . . . . . . 
Air cleaner pre-cleaner 273638. . . . . . . . . . . . . . . . 
Resistor spark plug 691043 -or- 491055. . . . . . . . . 
Long life platinum spark plug 5066. . . . . . . . . . . . 
(used on most OHV engines)
Spark tester 19368. . . . . . . . . . . . . . . . . . . . . . . 
Spark plug wrench 19374. . . . . . . . . . . . . . . . . . . 
Storage
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.
For engine protection, we recommend use of Briggs &
Stratton Fuel Stabilizer available from an Authorized
Briggs & Stratton Service Dealer. Mix stabilizer with fuel
in fuel tank or storage container. Run engine for a short
time to circulate stabilizer through carburetor. Engine
and fuel can be stored up to 24 months.
Note: If stabilizer is not used or if engine is operating on
gasoline containing alcohol, e.g. gasohol, remove all fuel
from tank and run engine until it stops from lack of fuel.
1. Change oil. See Oil service. (see figs. 
)
2. Remove spark plugs and pour about 30 ml (1 oz)
of engine oil into cylinders. Replace spark plugs
and crank slowly to distribute oil.
3. Clean grass/chaff from cylinders and cylinder
head fins and behind muffler.
4. Store in a clean and dry area, but NOT near a
stove, furnace or water heater which uses a pilot
light or any device that can create a spark.
Service
See 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 pow-
ered 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 Techni-
cians. Look for these signs wherever
Briggs & Stratton service is offered.
You may locate your nearest Authorized Briggs & Stratton
Service Dealer in our dealer locator map 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.
An illustrated shop manual includes Theories of
Operation," common specifications and detailed
information covering adjustment, tune-up and repair of
Briggs & Stratton V-twin cylinder OHV, 4 cycle engines.
Order P/N 273521 from an Authorized Briggs &
Stratton Service Dealer.
Insist on Genuine Briggs & Stratton replacement parts
with our logo on the box and/or part. Non-original parts
may not perform as well and may void your warranty. 
						

							GB
5
California, United States and Canada Emissions Con-
trol Defects Warranty Statement
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 Califor-
nia, 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 im-
proper 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 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.
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
failure to ensure the performance of all scheduled main-
tenance.
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.
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 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.
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 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 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.
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 pur-
chased.
a. Fuel Metering System
•Cold start enrichment system (soft choke)
•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 or pulse valve
e. Miscellaneous Items Used in Above Systems
•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 diag-
nostic 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 Autho-
rized 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. Warran-
ty 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 replace-
ment as required maintenance or which is scheduled
only for regular inspection to the effect of repair or re-
place 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 de-
fined in the B&S Operating and Maintenance Instruc-
tions.
6. Consequential Coverage
Coverage hereunder shall extend to the failure of any
engine components caused by the failure of any War-
ranted Part still under warranty.
Briggs & Stratton Emissions Control
Defects Warranty Provisions
Engines that are certified to meet the California Air
Resources Board (CARB) Tier 2 Emissions Standards
must display information regarding the Emissions
Durability Period and the Air Index. Briggs & Stratton
makes this information available to the consumer on our
emissions labels. The engine 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 emissions compliant for 125
hours of actual engine running time.
Intermediate:
Engine is certified to be emissions compliant for 250
hours of actual engine running time.
Extended:
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. 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.
Look For Relevant Emissions 
Durability Period and 
Air Index Information On 
Your Engine Emissions Label 
						

							GB
6
BRIGGS & STRATTON ENGINE OWNER WARRANTY POLICY
Effective 12/06
LIMITED WARRANTYBriggs & 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 ef-
fective 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 limitatio n an d ex c l u s i o n
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 Pro2 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 en-
gine 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 PROD-
UCT 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 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 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.
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 ordirty 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.
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. 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.
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.
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.
Warranty is available only through service dealers which
have been authorized by Briggs & Stratton Corporation.
your nearest Authorized Service Dealer is listed in the Yel-
low Pages™" of your telephone directory under Engines,
Gasoline" or Gasoline Engines," Lawn Mowers," or simi-
lar 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
6,542,0746,520,141
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
6,347,6146,325,036
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
6,202,6166,145,487
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
6,014,8086,012,420
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
5,809,9585,803,035
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
5,497,6795,548,955
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
5,265,7005,243,878
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
5,150,6745,138,996
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
4,895,1194,875,448
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
4,430,984D 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 
						

							

0.030”
(.76mm)



ÌÌ ÌÌ
ÌÌ ÌÌÌÌ ÌÌ
ÌÌ
ÌÌ ÌÌ ÌÌ
ÌÌ