Briggs & Stratton Fource 21000, Fource 21100 Operating & Maintenance Instructions
GB
Operating & Maintenance Instructions
E
Instrucciones de Mantenimiento & Operación
F
Instructions d’utilisation et de maintenance
Fource
21000, 21100
Briggs & Stratton Corporation
Milwaukee, Wisconsin 53201
www.briggsandstratton.com
Copyright 2004 by Briggs & Stratton Corporation
FORM NO. MS-5532-02/04
PRINTED IN U.S.A.
Fig. 1
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6
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9
3
Fig. 2
Fig. 3
5
12
4
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-20 0 20 40 60 80 100
°F
-30 -20 - 10 0 10 20 30 40
°C
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Fig. 4
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➊
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GBDDKE FGRI NNLPSSF
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.
ENGINE COMPONENTS
Fig. 1
1
Carburetor
2
Stop switch
3
Rope handle
4
Fuel fill
5
Air cleaner
6
Choke
7
Resistor spark plug
8
Fuel return hose
9
Fuel intake hose
10
Engine Model / Type / Code number
XXXXXX XXXX-XX
11
Oil fill / dipstick
12
Primer bulb
Record your engine Model, Type and Code numbers
here for future use.
Record your date of purchase here for future use.
TECHNICAL INFORMATION
Power Ratings
The power ratings for an individual engine model are initially
developed by starting with SAE (Society of Automotive
Engineers) code J1940 (Small Engine Power & TorqueRating
Procedure) (Revision 2002-05). Given both the wide array of
products on which our engines are placed, and the variety of
environmentalissues applicable to operating the equipment, it
may be that the engine you have purchased will not develop
the rated horsepower when used in a piece of power
equipment (actual “on-site” power). This difference is due to a
variety of factors including, but not limited to, the following:
differences in altitude, temperature, barometric pressure,
humidity, fuel, engine lubrication, maximum governed engine
speed, individual engine to engine variability, design of the
particular piece of power equipment, the manner in which the
engine is operated, engine run-in to reduce friction and clean
out of combustion chambers, adjustments to the valves and
carburetor, and other factors. The power ratings may also be
adjusted based on comparisons to other similar engines
utilized in similar applications, and will therefore not
necessarily match the values derived using the foregoing
codes.
GENERAL INFORMATION
In the U.S.A., the 21000 and 21100 series engines covered in
this manual are certified by the California Air Resources Board
to meet emissions standards for 50 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 Series 21000
Bore 40 mm (1.575 in.)......................
Stroke 27 mm (1.065 in.)....................
Displacement 34 cc (2.074 cu. in.).............
Model Series 21100
Bore 40 mm (1.575 in.)......................
Stroke 32 mm (1.250 in.)....................
Displacement 40 cc (2.44 cu. in.)..............
TUNE-UP SPECIFICATIONS
Spark plug gap 0.76 mm (0.25 in.).............
Armature air gap 0.25 -- 0.36 mm.............
(0.010 -- 0.014 in.).........................
Intake valve clearance 0.05 -- 0.10 mm..........
(0.002 -- 0.004 in.).........................
Exhaust valve clearance 0.05 -- 0.10 mm........
(0.002 -- 0.004 in.).........................
Note: 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).
SAFETY SPECIFICATIONS
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.
* 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.
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.
Hazard Symbols and Meanings
Fire
Kickback
Explosion
Toxic Fumes
Shock
Moving Parts
International Symbols and Meanings
Safety Alert
Read Operator’s
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.
On Off
Manual
DANGER indicates a hazard which, if not avoided,
will result in death or serious injury.
WARNINGindicates 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
indicates a situation that could result in damage to
the engine.
Oil
, when used without the alert symbol,
WARNING
The engine exhaust from this product contains chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
WARNING
Briggs & Stratton does not approve or authorize
the use of these engines on 3-wheel All Terrain
Vehicles (ATVs), motor bikes, 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.
Stop
Fuel
Open
Choke
GB
Hot Surface
Full
Choke
Primer
bulb
1
GBDDKE FGRI NNLPSSF
WARNING
Gasoline and its vapors are extremely
flammable and explosive.
Fire or explosion can cause severe
burns or death.
WHEN ADDING FUEL
• Turn engine OFF and let engine cool at least 2
minutes before removing gas cap.
• Fill fuel tank outdoors or in well-ventilated
area.
• Do not overfill fuel tank.
• Keep gasoline away from sparks, open
flames, pilot lights, heat, and other ignition
sources.
• Check fuel lines, tank, cap, and fittings
frequently for cracks or leaks. Replace if
necessary.
WHEN STARTING ENGINE
• Make sure spark plug, muffler,fuel cap and air
cleaner are in place.
• Do not crank engine with spark plug removed.
• If fuel spills, wait until it evaporates before
starting engine.
• If engine floods, set choke to OPEN/RUN
position, place throttle in FASTand crank until
engine starts.
WHEN OPERATING EQUIPMENT
• Do not choke carburetor to stop engine.
WHEN TRANSPORTING EQUIPMENT
• Transport with fuel tank EMPTY.
WHEN STORING GASOLINE OR EQUIPMENT WITH
FUEL IN TANK
• Store away from furnaces, stoves, water
heaters or other appliances that have pilot
light or other ignition source because they can
ignite gasoline vapors.
WARNING
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
Rapid retraction of starter cord (kickback) will pull hand and arm toward
engine faster than you can let go.
Broken bones, fractures, bruises or
sprains could result.
• When starting engine, pull cord slowly until
resistance is felt, then pull rapidly.
• Direct coupled equipment components such
as, but not limited to, blades, impellors,
pulleys, sprockets, etc., must be securely
attached.
WARNING
Rotating parts can contact or entangle hands, feet, hair, clothing, or
accessories.
Traumatic amputation or severe
laceration can result.
• Operate equipment with guards in place.
• Keep hands and feet away from rotating parts.
• Tie up long hair and remove jewelry.
• Do not wear loose-fitting clothing, dangling
drawstrings or items that could become
caught.
WARNING
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 forestcovered, grass-covered, brush-covered
unimproved land. The state of California
requires this (Section 4442 of the California
Public Resources Code). Other states may
have similar laws. Federal laws apply on
federal land.
WARNING
Unintentional sparking can result
in fire or electric shock.
Unintentional start-up can result in
entanglement, traumatic amputation, or laceration.
BEFORE PERFORMING ADJUSTMENTS OR
REPAIRS
• Disconnect spark plug wire and keep it away
from spark plug.
WHEN TESTING FOR SPARK
• Use approved spark plug tester.
• Do not check for spark with spark plug
removed.
OIL RECOMMENDATIONS
CAUTION:
Engine shipped from Briggs & Stratton without oil. Before
starting engine
Use a high quality detergent oil classified “For Service SF, SG,
SH, SJ” or higher such as Briggs & Stratton 30, Part Number
100005. Use no special additives with recommended oils. Do
not mix oil with gasoline.
Fig. 2
, fill with oil. Do not over-fill.
Choose the SAE viscosity grade of oil
from this chart that matches the starting
temperature anticipated before the next
oil change.
CAUTION: Air cooled engines run hotter than
automotive engines. The use of non-synthetic
multi-viscosity oils (5W-30, 10W-30, etc.) in
temperatures above 40° F(4°C) will result in higher
than normal oil consumption. When using a
multi-viscosity oil, check oil level more frequently.
* CAUTION: Synthetic oil must be used
when operating engine under 40° F(4° C) or
engine damage will occur.
** CAUTION: SAE 30 oil, if used below 50° F
(10° C), will result in hard starting and possible
engine bore damage due to inadequate
lubrication.
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.
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.
2
GBDDKE FGRI NNLPSSF
Checking or Adding Oil
CAUTION:
To check oil, engine must be level,
with oil fill facing up. if not level, dipstick reading
will not be accurate and could lead to possible
over/under filling of oil. This may lead to possible
engine damage.
• Check oil level before starting the engine.
• Check oil level before every use.
• Keep oil level at FULL.
• DO NOT overfill, use oil measure cup for filling.
• Add only 30ml (1 oz)
a time.
➊_-- 15ml (0.5 oz) ➋ ofoil at
➊
➋
Fig. 3
1. Place engine level. Remove dipstick. Using oil
measure cup, pour oil slowly. Do not overfill.
2. Tocheck oil level, remove dipstick and wipe clean
with cloth. Replace dipstick and tighten down.
3. Remove and check oil level. Level should be at
FULL mark.
4. Verify FULL level of oil by the presence of oil in
hole on dipstick, or by measure line.
5. If oil is required, add 15ml (0.5oz) oil at a time.
Recheck level.
OIL PROCEDURE
➊.
Note: Engine holds approximately 90 ml.
➋
FUEL RECOMMENDATIONS
Use clean, fresh, lead-free gasoline with a minimum of
85 octane. Leaded gasoline may be used if it is
commercially available and if unleaded is unavailable.
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.
Fig. 4
Tilt engine at angle shown to properly refuel. Clean
around fuel fill before removing cap. Fill tank to
approximately 1-1/2 inches below top of neck to allow
for fuel expansion. Be careful not to overfill.
ADDING FUEL
WARNING
Before refueling, allow
engine to cool 2 minutes.
STARTING
WARNING
CAUTION
Check oil level before starting engine. Oil level
should be at Full mark on dipstick before starting
engine. If started without oil, engine damage will
occur.
CAUTION
Operating engine at an excessive speed without
proper engine loading will cause damage. Do not
operate a string trimmer with a line shorter than 10”
(25 cm) diameter.
Fig. 5
1. Add oil and fuel as instructed in this manual.
2. Push
ENGINE, 8 times for all consecutive starts.
3. Red choke lever ➋ should be in the FULL
CHOKE
4. Squeeze throttle trigger
➎ sharply until engine runs.
5. Wait a maximum 10 seconds, then move choke
lever to HALF CHOKE
6. Run the engine at HALF CHOKE for 20 seconds
or until unit accelerates smoothly. Move choke to
OFF
require a longer warm-up period on HALF
CHOKE)
7. Wait a minimum of 20 seconds, then release
throttle trigger.
STARTING A WARM ENGINE
H Follow steps under Starting, with the exception of
squeezing throttle trigger. It is not necessary
squeeze and hold throttle trigger to restart a
engine.
STOPPING
Fig. 5
• Depress stop switch ➑ to stop engine.
STARTING THE ENGINE
➊ primer bulb 15 times FOR NEW
➌ position.
➍ and pull starter handle
➏ position.
➐ position. (Colder temperatures will
warm
WARNING
DO NOT close choke to
stop engine.
MAINTENANCE
WARNING
To prevent accidental starting, remove
spark plug wire and ground it before
servicing.
Regular maintenance improves performance and
extends engine life. More frequent service is required
when operating in adverse conditions.
See any Authorized Briggs & Stratton Service Dealer
for correct replacement parts. Other parts may not
perform as well, may damage the engine, result in
injury, or void your warranty.
WARNING
Do not strike the flywheel with hammer or hard
object. If done, the flywheel may shatter during
operation.
Do not tamper with links or other parts to increase
engine speed.
Follow the hourly or calendar intervals, whichever
occur first. More frequent service is required when
operating in adverse conditions noted below.
Before Every Use
D Check oil level
First 4 Hours
D Change oil
Every 8 Hours or Every Season
D Change oil
D Service air cleaner *
Every 50 Hours or Every Season
D Replace spark plug**
D Check valve clearance
* Clean more often under dusty conditions, or when
airborne debris is present or after prolonged operation
cutting tall, dry grass.
** 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.
Fig. 6
1. Change oil while the engine is warm, ensure fuel
to
cap is tightened securely.
2. Remove dipstick, and drain oil
shown.
3. Place engine level. Using oil measure cup pour oil
slowly adding 0.5 oz. at a time
4. Tocheck oil level, remove dipstick and wipe clean
with cloth. Replace dipstick and tighten down.
5. Remove and check oil level. Level should be at
FULL mark.
6. Verify FULL level of oil by the presence of oil in
hole on dipstick, or by measure line.
7. If oil is required, add 15ml (0.5oz) oil at a time.
Recheck level.
8. Replace dipstick tightly before starting engine.
CHANGING OIL
& CHECKING LEVEL
➊ in direction
➋. Do not overfill.
Note: Engine holds approximately 90 ml.
➌
3
GBDDKE FGRI NNLPSSF
Fig. 7
AIR CLEANER MAINTENANCE
Replace Oil-Foam element if very dirty or damaged.
• Push cover tab
away from engine to service air filter.
➊ to release cover, then pull cover
• Check and clean the intake chamber for dirt.
• Wash Oil-Foam element ➋ in liquid detergent
and water. Squeeze dry in a clean cloth. Saturate
Oil-Foam element in engine oil and squeeze in a
clean cloth to remove excess oil.
• Engine will smoke if too much oil is left on filter.
CAUTION:
Do not use pressurized air or solvents to clean.
Pressurized air can damage filter; solvents will
dissolve filter.
Fig. 8
SPARK PLUG MAINTENANCE
WARNING
DO NOT check for spark with spark
plug removed. Use only Briggs & Stratton Spark Tester, to check for spark. DO
NOT crank engine with spark plug
removed.
• The electrodes on a spark plug must be clean and
sharp to produce the powerful spark required for
ignition. If the spark plug is worn or dirty the harder
it is to start your engine. Replace the spark plug
each season.
• Spark plug gap should be .64 mm or 0.025 in.
➋
KEEP ENGINE CLEAN
Periodically remove grass and chaff build-up from
engine. Clean finger guard.
Do not spray engine with water to clean because water
could contaminate fuel. Clean with a brush or
compressed air.
WARNING
Engine should be kept clean to
reduce risk of overheating and
ignition of accumulated debris.
Clean engine when engine is cold.
STORAGE
The following precautions should be taken if storing
your trimmer unit for a period exceeding 30 days, or for
seasonal storage.
• While engine is still warm, change oil.
• Clean engine of surface debris, chaff or grass.
• Drain all fuel from fuel tank into proper receptacle
for storage.
• Press the primer bulb 15 times to purge fuel from
carburetor and fuel lines. Drain remaining fuel into
proper receptacle. If fuel is to be disposed, please
refer to local rules for proper disposal.
• Remove spark plug. Place 1 teaspoon or 5 cc of oil
into spark plug hole.
• Pull starter rope slowly 8-10 times to properly coat
the cylinder bore and piston for storage. Replace
spark plug and tighten. Any residual oil may burn
off in subsequent starts. This may result in white
smoke emission from muffler.
• This trimmer may be stored in a variety of
positions. It is best to store in horizontal position
with the spark plug up. Do not store or transport
with the spark plug down.
Note: Storing or transporting with the spark plug down
will result in hard starting and/or engine smoking.
WARNING
Store in a clean, dry area. DO NOT store
near a stove, furnace or water heater
which uses a pilot light or any device that
can create a spark.
• When removing the unit from storage, only use
fresh gasoline. Perform operation checks, see
maintenance schedule, before starting engine.
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.
Partial List of Genuine Briggs & Stratton Parts
Oil 100005..............................
Synthetic Oil 100074......................
Oil pump kit (uses standard electric drill 5056.....
to remove oil from engine quickly)
Gas additive 5041.........................
Fuel hose assembly 696935.................
Air filter-foam 696923......................
Resistor spark plug 696876..................
Spark tester 19368........................
Spark plug wrench 89838 -or- 5023............
Repair manual 275072.....................
To purchase, or view other produc ts Briggs &
Stratton has available, see an Authorized Briggs &
Stratton Service Dealer. Use our web site at
www.briggsandstratton.com to find a dealer
nearest you, or check the “Yellow Pages”.
Walking fingers logo and “Yellow Pages” are registered
trademarks in various jurisdictions.
Need Assistance? Go to the website or call,
1-800-233-3723, (U.S.A. and Canada) to hear a
menu of pre-recorded messages offering engine
maintenance information.
4
GBDDKE FGRI NNLPSSF
Briggs & Stratton Corporation (B&S),
the California Air Resources Board (CARB)
Environmental Protection Agency (U.S. EPA)
Emission Control System Warranty Statement
(Owner’s Defect Warranty Rights and Obligations)
and the United States
EMISSION CONTROL WARRANTY COVERAGE IS APPLICABLE TO CERTIFIED ENGINES PURCHASED IN
CALIFORNIA IN 1995 AND THEREAFTER, WHICH ARE
USED IN CALIFORNIA, AND TO CERTIFIED MODEL
YEAR 1997 AND LATER ENGINES WHICH ARE PURCHASED AND USED ELSEWHERE IN THE UNITED
STATES (AND AFTER JANUARY 1, 2001 IN CANADA).
California, United States and Canada Emission Con-
trol Defects Warranty Statement
The California Air Resources Board (CARB), U.S. EPA
and B&S arepleased to explain the Emission Control System Warranty on your model year 2000 and later small offroad engine (SORE). In California, new small off-road
engines must be designed, built and equipped to meet the
State’s stringent anti-smog standards. Elsewhere in the
UnitedStates, 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
emission 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 emission control system includes parts such as the
carburetor, air cleaner, ignition system, muffler and catalytic converter. Also included may be connectors and other emission related assemblies.
Where a warrantablecondition exists, B&S will repair your
small off-road engine at no cost to you including diagnosis, parts and labor.
Briggs & Stratton Emission Control
Defects Warranty Coverage
Small off-road engines are warranted relative to emission
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 you warranty coverage if
your small off-road engine or a part has failed due to
abuse, neglect, improper maintenance or unapproved
modifications.
Youare 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 emission warranty is a defects warranty. Defects are
judged on normal engine performance. The warranty is
not related to an in-use emission test.
Briggs & Stratton Emission Control
Defects Warranty Provisions
The following are specific provisions relativeto your Emission 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 emission control systems parts) to the
extent these parts were present on the engine purchased.
a. Fuel Metering System
• Cold start enrichment system (soft choke)
• Carburetor and internal parts
• Fuel Pump
b. Air Induction System
• Air cleaner
• Intake manifold
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 per-
formed 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 pro-
visions of the B&S Engine WarrantyPolicy.Warranty coverage shall be excluded for f ailures 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 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 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 en-
gine components caused by the failure of any Warranted
Part still under warranty.
Look For Relevant Emission
Durability Period and
Air Index Information On
Your Engine Emission Label
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 label will indicate certification
information.
The Emission Durability Period describes the number
of hours of actual running time for which the engine is
certified to be emission 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.
Forexample, a typical walk-behind lawn mower is used 20
to 25 hours per year. Therefore, the Emission Durability
Period of an engine with an intermediate rating would
equate to 10 to 12 years.
The Air Index is a calculated number describing the
relative level of emission for a specific engine family. The
lower the Air Index, the cleaner the engine. This
information is displayed in graphical form on the emission
label.
In the state of California, the 120000 series engines
covered in this manual are certified by the California Air
Resources Board to meet emissions standards for 125
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
productand emissions warrantiesstatedelsewhere in this
manual.
After July 1, 2000, Look For Emissions
Compliance Period On Engine Emissions
Compliance Label
After July 1, 2000 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.Forengines less than 225 cc displacement,
Category C = 125 hours, B = 250 hours and A = 500 hours.
For engines of 225 cc or more, Category C = 250 hours, B
= 500 hours and A = 1000 hours.
The displacement of Model Series 21000 engines is 34cc.
The displacement of Model Series 21100 engines is 40cc.
This is a generic representation of the emission label typically found
on a certified engine.
5
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