Briggs & Stratton PRO8000 User manual

PRO8000 Portable Generator
Operator’s Manual
BRIGGS & STRATTON POWER PRODUCTS GROUP, LLC
JEFFERSON, WISCONSIN, U.S.A.
Manual No. 204729GS Revision A (02/25/2009)
This generator is rated and certified to be compliant with CSA (Canadian
Standards Association) standard C22.2 No. 100-04 (motors and generators).

2BRIGGSandSTRATTON.COM
Briggs & Stratton Power Products Group, LLC
900 North Parkway
Jefferson, WI 53549
Copyright © 2009. All rights reserved. No part of this material
may be reproduced or transmitted in any form by any means
without the express written permission of Briggs & Stratton
Power Products Group, LLC.
Thank you for purchasing this quality-built Briggs & Stratton generator. We are pleased that you’ve placed your confidence in
the Briggs & Stratton brand. When operated and maintained according to the instructions in this manual, your Briggs &
Stratton generator will provide many years of dependable service.
This manual contains safety information to make you aware of the hazards and risks associated with generators and how to
avoid them. This generator is designed and intended only for supplying electrical power for operating compatible electrical
lighting, appliances, tools and motor loads, and is not intended for any other purpose. It is important that you read and
understand these instructions thoroughly before attempting to start or operate this equipment. Save these instructions for
future reference.
This generator requires final assembly before use. Refer to the Assembly section of this manual for instructions on final
assembly procedures. Follow the instructions completely.
Where to Find Us
You never have to look far to find Briggs & Stratton support and service for your generator. Consult your Yellow Pages. There
are over 30,000 Briggs & Stratton authorized service dealers worldwide who provide quality service. You can also contact
Briggs & Stratton Customer Service by phone at [phone], or on the Internet at BRIGGSandSTRATTON.COM.
Generator
Model Number
Revision
Serial Number
Engine
Model Number
Type Number
Code Number
Date Purchased

3
Table of Contents
Operator Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Equipment Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety Rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Unpack Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Shipment Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Install Wheel Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Attach Negative Battery Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Add Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Add Fuel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
System Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Connecting to a Building’s Electrical System. . . . . . . . . . . . . . . . . . . . . . . 10
Generator Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Features and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Cord Sets and Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Ground Fault Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Starting the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Connecting Electrical Loads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Stopping the Engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Operating Automatic Idle Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Oil Pressure Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Charging a Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Cold Weather Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Don’t Overload Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Maintenance Schedule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Generator Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Battery Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Fuel Valve Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Engine Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Warranties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Emissions Control System Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Generator Owner Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Product Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Common Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3

Operator Safety
Equipment Description
Read this manual carefully and become familiar
with your generator. Know its applications, its
limitations and any hazards involved.
The generator is an engine–driven, revolving field, alternating
current (AC) generator. It was designed to supply electrical
power for operating compatible electrical lighting, appliances,
tools and motor loads. The generator’s revolving field is
driven at about 3,600 rpm by a twin-cylinder engine.
This generator incorporates GFCI (Ground Fault Circuit
Interrupter) outlet protection and has its neutral bonded to
ground to comply to OSHA inspections on job sites. This
generator will not function when connected to a 2 pole
transfer switch since the home or building main breaker box
also has a neutral bonded to ground. When both the
generator and the home or building breaker box contains a
neutral bonded to ground, the generators GFCI will open and
no outlets will function.
NOTICE Exceeding generators wattage/amperage capacity
can damage generator and/or electrical devices connected to
it.
• DO NOT exceed the generator’s wattage/amperage capacity. See
Don’t Overload Generator in the Operation section.
Every effort has been made to ensure that the information in
this manual is both accurate and current. However, the
manufacturer reserves the right to change, alter or otherwise
improve the generator and this documentation at any time
without prior notice.
The Emission Control System for this generator is warranted
for standards set by the Environmental Protection Agency
and the California Air Resources Board.
Important Safety Information
The manufacturer cannot possibly anticipate every possible
circumstance that might involve a hazard. The warnings in
this manual, and the tags and decals affixed to the unit are,
therefore, not all-inclusive. If you use a procedure, work
method or operating technique that the manufacturer does
not specifically recommend, you must satisfy yourself that it
is safe for you and others. You must also make sure that the
procedure, work method or operating technique that you
choose does not render the generator unsafe.
Safety Symbols and Meanings
The safety alert symbol indicates a potential personal
injury hazard. A signal word (DANGER, WARNING, or
CAUTION) is used with the alert symbol to designate a
degree or level of hazard seriousness. A safety symbol may
be used to represent the type of hazard. The signal word
NOTICE is used to address practices not related to personal
injury.
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, could
result in minor or moderate injury.
NOTICE address practices not related to personal injury.
4BRIGGSandSTRATTON.COM
WARNING Removing the neutral bond could result in
death, bodily injury and/or property damage.
• DO NOT remove the neutral bond.
Fire Explosion
Toxic Fumes
Hot Surface
Moving Parts
Electrical Shock
Kickback
Flying Objects
Operator’s Manual
Explosive Pressure Chemical Burn

5
WARNING Storage batteries give off explosive
hydrogen gas during recharging.
Hydrogen gas stays near battery for a
long time after battery has been charged.
Slightest spark will ignite hydrogen and cause explosion.
You can be blinded or severely injured.
Battery electrolyte fluid contains acid and is extremely
caustic.
Contact with battery fluid will cause severe chemical burns.
• DO NOT allow any open flame, spark, heat, or lit cigarette
during and for several minutes after charging a battery.
• Wear protective goggles, rubber apron, and rubber gloves.
WARNING Running engine gives off carbon
monoxide, an odorless, colorless, poison gas.
Breathing carbon monoxide can cause headache,
fatigue, dizziness, vomiting, confusion, seizures,
nausea, fainting or death.
• Operate generator ONLY outdoors.
• Install a battery operated carbon monoxide alarm near the
bedrooms.
• Keep exhaust gas from entering a confined area through
windows, doors, ventilation intakes, or other openings.
• DO NOT start or run engine indoors or in an enclosed area,
(even if windows and doors are open), including the generator
compartment of a recreational vehicle (RV).
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 Certain components in this product and
related accessories contain chemicals known to the State
of California to cause cancer, birth defects or other
reproductive harm. Wash hands after handling.
WARNING Starter cord kickback (rapid retraction) can
result in bodily injury. 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
and then pull rapidly to avoid kickback.
• NEVER start or stop engine with electrical devices plugged in
and turned on.
WARNING Fuel and its vapors are extremely
flammable and explosive.
Fire or explosion can cause severe
burns or death.
WHEN ADDING OR DRAINING FUEL
• Turn generator OFF and let it cool at least 2 minutes before
removing fuel cap. Loosen cap slowly to relieve pressure in
tank.
• Fill or drain fuel tank outdoors.
• DO NOT overfill tank. Allow space for fuel expansion.
• If fuel spills, wait until it evaporates before starting engine.
• Keep fuel away from sparks, open flames, pilot lights, heat, and
other ignition sources.
• DO NOT light a cigarette or smoke.
WHEN STARTING EQUIPMENT
• Ensure spark plug, muffler, fuel cap, and air cleaner are in
place.
• DO NOT crank engine with spark plug removed.
WHEN OPERATING EQUIPMENT
• DO NOT tip engine or equipment at angle which causes fuel to
spill.
• This generator is not for use in mobile equipment or marine
applications.
WHEN TRANSPORTING OR REPAIRING EQUIPMENT
• Transport/repair with fuel tank EMPTY or with fuel shutoff valve
OFF.
• Disconnect spark plug wire.
WHEN STORING FUEL OR EQUIPMENT WITH FUEL IN TANK
• Store away from furnaces, stoves, water heaters, clothes
dryers, or other appliances that have pilot light or other ignition
source because they can ignite fuel vapors.
WARNING:
• This generator does not meet U. S. Coast Guard Regulation
33CFR-183 and should not be used on marine applications.
• Failure to use the appropriate U. S. Coast Guard approved
generator could result in death or serious injury and/or property
damage.

NOTICE Exceeding generators wattage/amperage capacity
can damage generator and/or electrical devices connected to
it.
• DO NOT exceed the generator’s wattage/amperage capacity. See
Don’t Overload Generator in the Operation section.
• Start generator and let engine stabilize before connecting
electrical loads.
• Connect electrical loads in OFF position, then turn ON for
operation.
• Turn electrical loads OFF and disconnect from generator before
stopping generator.
NOTICE Improper treatment of generator can damage it
and shorten its life.
• Use generator only for intended uses.
• If you have questions about intended use, ask dealer or contact
local service center.
• Operate generator only on level surfaces.
• DO NOT expose generator to excessive moisture, dust, dirt, or
corrosive vapors.
• DO NOT insert any objects through cooling slots.
• If connected devices overheat, turn them off and disconnect them
from generator.
• Shut off generator if:
-electrical output is lost;
-equipment sparks, smokes, or emits flames;
-unit vibrates excessively.
6BRIGGSandSTRATTON.COM
WARNING Generator produces hazardous voltage.
Failure to isolate generator from power utility
can result in death or injury to electric utility
workers due to backfeed of electrical energy.
• When using generator for backup power, notify utility company.
Use approved transfer equipment to isolate generator from
electric utility.
• Use a ground fault circuit interrupter (GFCI) in any damp or
highly conductive area, such as metal decking or steel work.
• DO NOT touch bare wires or receptacles.
• DO NOT use generator with electrical cords which are worn,
frayed, bare or otherwise damaged.
• DO NOT operate generator in the rain or wet weather.
• DO NOT handle generator or electrical cords while standing in
water, while barefoot, or while hands or feet are wet.
• DO NOT allow unqualified persons or children to operate or
service generator.
WARNING Contact with muffler area can result in
serious burns.
Exhaust heat/gases can ignite
combustibles, structures or damage
fuel tank causing a fire.
• DO NOT touch hot parts and AVOID hot exhaust gases.
• Allow equipment to cool before touching.
• Keep at least 5 feet (152 cm) of clearance on all sides of
generator including overhead.
• It is a violation of California Public Resource Code, Section
4442, to use or operate the engine on any forest-covered,
brush-covered, or grass-covered land unless the exhaust
system is equipped with a spark arrester, as defined in Section
4442, maintained in effective working order. Other states or
federal jurisdictions may have similar laws.
Contact the original equipment manufacturer, retailer, or dealer
to obtain a spark arrester designed for the exhaust system
installed on this engine.
• Replacement parts must be the same and installed in the same
position as the original parts.
WARNING Unintentional sparking can result in fire or
electric shock.
WHEN ADJUSTING OR MAKING REPAIRS TO YOUR GENERATOR
• Disconnect the spark plug wire from the spark plug and place
the wire where it cannot contact spark plug.
WHEN TESTING FOR ENGINE SPARK
• Use approved spark plug tester.
• DO NOT check for spark with spark plug removed.
WARNING Starter and other rotating parts can
entangle hands, hair, clothing, or accessories.
• NEVER operate generator without protective housing or covers.
• DO NOT wear loose clothing, jewelry or anything that may be
caught in the starter or other rotating parts.
• Tie up long hair and remove jewelry.
CAUTION Excessively high operating speeds increase
risk of injury and damage to generator.
Excessively low speeds impose a heavy load.
• DO NOT tamper with governed speed. Generator supplies
correct rated frequency and voltage when running at governed
speed.
• DO NOT modify generator in any way.

Assembly
Your generator requires some assembly and is ready for use
after it has been properly serviced with the recommended oil
and fuel.
If you have any problems with the assembly of your generator,
please call the generator helpline at [phone]. If calling
for assistance, please have the model, revision, and serial
number from the identification label available. See Controls
and Features for identification label location.
Unpack Generator
1. Set the carton on a rigid, flat surface.
2. Remove everything from carton except generator.
3. Open carton completely by cutting each corner from
top to bottom.
4. Leave generator on carton to install wheel kit.
Shipment Contents
The generator is supplied with:
• Engine oil
• Operator’s manual
• Battery charge cables
• Battery float charger
• Wheel kit
• 120/240 Volt, 30 Amp locking plug
• 120 Volt, 30 Amp locking plug
Install Wheel Kit
NOTE: Wheel kit is not intended for over-the-road use.
You will need the following tools to install these
components:
• 13 mm and 3/8” wrench
• Socket wrench with a 13 mm and a 3/8” socket
• Pliers
• Safety glasses
Install the wheel kit as follows:
1. Tip generator so that engine side is down.
2. Slide axle (A) through both mounting brackets.
3. Slide a wheel (B) over axle.
NOTE: Be sure to install wheel with raised hub inboard.
4. Place a washer (C) on axle and then place an e-ring (D)
in axle groove.
5. Install e-ring with pliers, squeezing from top of e-ring
to bottom of axle.
6. Repeat steps 3 through 5 to secure second wheel.
7
N
E
D
A
H
C
M
J
K
L
G
B
F
CAUTION E-rings can cause eye injury.
E-rings can spring back and become airborne
when installing or removing.
• Always wear eye protection when installing/removing e-rings.

7. Tip generator so that engine end is up.
8. Attach clamps (E) to brackets (F) on both sides of
generator with 1/4 - 20 hex screws (G).
9. Repeat steps 2 through 5 to secure the third and fourth
wheels.
10. Attach handles (H) to brackets on generator frame as
shown, with 45 mm capscrews (J), flat washers (K),
nylon washers (L), and M8 lock nuts (M).
NOTE: DO NOT overtighten. Handles must be able to move
up and down freely.
11. Return generator to normal operating position (resting
on wheels).
12. To apply brakes, push down firmly on handle of both
clamps until it locks in the down position and engages
the wheels.
IMPORTANT: The generator is designed to be used on level
surfaces.
13. Loop handle pins (N) on generator frame just above
handle brackets.
14. Raise handles and insert handle pins to move
generator.
15. To release brakes, pull up on handle of both clamps
until it locks in the up position.
Attach Negative Battery Cable
Your unit is equipped with electric start capability but can be
started manually. If you choose not to use the electric start
feature, you do not need to connect the negative battery
cable.
The sealed battery on the generator pre–installed except for
the negative (black) battery cable.
To install:
1. Cut off tie wrap securing loose end of negative (black)
cable.
2. Using an 8 mm or 5/16” socket wrench, remove
screw (A), lock washer (B) and flat washer (C) on
negative battery terminal.
3. Slide lock washer, flat washer and negative battery cable
(D) over screw as shown.
4. Reattach screw to negative battery terminal and tighten.
5. Verify that connections to battery and generator are
tight and secure.
NOTE: If your battery is discharged, charge prior to use
following the instructions in the section Battery Charger.
8BRIGGSandSTRATTON.COM
A
D
CB
WARNING Battery posts, terminals and related
accessories contain lead and lead compounds - chemicals
known to the State of California to cause cancer and
reproductive harm. Wash hands after handling.

Add Engine Oil
1. Place generator on a flat, level surface.
2. Clean area around oil fill and remove yellow oil fill cap.
NOTE: See the section Oil to review oil recommendations.
Verify provided oil bottle is correct viscosity for current
ambient temperature.
3. Using oil funnel (optional), slowly pour contents of
both provided oil bottles into oil fill opening to the
“Full” mark on dipstick.
NOTICE Improper treatment of generator can damage it
and shorten its life.
• DO NOT attempt to crank or start the engine before it has been
properly serviced with the recommended oil. This may result in
an engine failure.
4. Replace oil fill cap and fully tighten.
Add Fuel
Fuel must meet these requirements:
• Clean, fresh, unleaded gasoline.
• A minimum of 87 octane/87 AKI (91 RON). High
altitude use, see HIgh Altitude.
• Gasoline with up to 10% ethanol (gasohol) or up to
15% MTBE (methyl tertiary butyl ether) is acceptable.
NOTICE Avoid generator damage.
Failure to follow Operator’s Manual for fuel
recommendations voids warranty.
• DO NOT use unapproved gasoline such as E85.
• DO NOT mix oil in gasoline.
• DO NOT modify engine to run on alternate fuels.
To protect the fuel system from gum formation, mix in a fuel
stabilizer when adding fuel. See Storage. All fuel is not the
same. If you experience starting or performance problems
after using fuel, switch to a different fuel provider or change
brands. This engine is certified to operate on gasoline. The
emission control system for this engine is EM (Engine
Modifications).
1. Clean area around fuel fill cap, remove cap.
2. Slowly add unleaded gasoline (A) to fuel tank (B). Be
careful not to fill above the baffle (C). This allows
adequate space for fuel expansion as shown.
3. Install fuel cap and let any spilled fuel evaporate before
starting engine.
High Altitude
At altitudes over 5,000 feet (1524 meters), a minimum
85 octane / 85 AKI (89 RON) gasoline is acceptable. To
remain emissions compliant, high altitude adjustment is
required. Operation without this adjustment will cause
decreased performance, increased fuel consumption, and
increased emissions. See a Briggs & Stratton Authorized
Dealer for high altitude adjustment information. Operation of
the engine at altitudes below 2,500 feet (762 meters) with
the high altitude kit is not recommended.
9
FUEL
TANK
CB
A
WARNING Fuel and its vapors are extremely
flammable and explosive.
Fire or explosion can cause severe
burns or death.
WHEN ADDING FUEL
• Turn generator OFF and let it cool at least 2 minutes before
removing fuel cap. Loosen cap slowly to relieve pressure in
tank.
• Fill fuel tank outdoors.
• DO NOT overfill tank. Allow space for fuel expansion.
• If fuel spills, wait until it evaporates before starting engine.
• Keep fuel away from sparks, open flames, pilot lights, heat, and
other ignition sources.
• DO NOT light a cigarette or smoke.

System Ground
The generator has a system ground that connects the
generator frame components to the ground terminals on the
AC output receptacles. The system ground is connected to
the AC neutral wire (the neutral is bonded to the generator
frame).
Special Requirements
There may be Federal or State Occupational Safety and
Health Administration (OSHA) regulations, local codes, or
ordinances that apply to the intended use of the generator.
Please consult a qualified electrician, electrical inspector, or
the local agency having jurisdiction:
• In some areas, generators are required to be registered
with local utility companies.
• If the generator is used at a construction site, there
may be additional regulations which must be observed.
Connecting to a Building’s Electrical System
Connections for standby power to a building’s electrical
system must be made by a qualified electrician. The
connection must isolate the generator power from utility
power or other alternative power sources and must comply
with all applicable laws and electrical codes.
Generator Location
Clearances and Air Movement
Place generator outdoors in an area that will not accumulate
deadly exhaust gas. DO NOT place generator where exhaust
gas (A) could accumulate and enter inside or be drawn into a
potentially occupied building. Ensure exhaust gas is kept
away from any windows, doors, ventilation intakes, or other
openings that can allow exhaust gas to collect in a confined
area. Prevailing winds and air currents should be taken into
consideration when positioning generator.
10 BRIGGSandSTRATTON.COM
A
WARNING Generator produces hazardous voltage.
Failure to isolate generator from power utility
can result in death or injury to electric utility
workers due to backfeed of electrical energy.
• When using generator for backup power, notify utility company.
Use approved transfer equipment to isolate generator from
electric utility.
• Use a ground fault circuit interrupter (GFCI) in any damp or
highly conductive area, such as metal decking or steel work.
• DO NOT touch bare wires or receptacles.
• DO NOT use generator with electrical cords which are worn,
frayed, bare or otherwise damaged.
• DO NOT operate generator in the rain or wet weather.
• DO NOT handle generator or electrical cords while standing in
water, while barefoot, or while hands or feet are wet.
• DO NOT allow unqualified persons or children to operate or
service generator.
WARNING Exhaust heat/gases can ignite
combustibles, structures or damage fuel tank
causing a fire.
• Keep at least 5 ft. (152 cm) clearance on all sides of generator
including overhead.

Features and Controls
Read this Operator’s Manual and safety rules before operating your generator.
Compare the illustrations with your generator, to familiarize yourself with the locations of various controls and
adjustments. Save this manual for future reference.
11
A - Fuel Tank — Capacity of seven (7) U.S. gallons.
B - Fuel Valve — Used to turn fuel supply on and off to engine.
C - Oil Fill Cap— Add engine oil here.
D - Oil Dipstick— Check engine oil here.
E - Engine Identification — Provides model, type and code of
engine. Please have these readily available if calling for assistance.
F - Hour Meter — Displays and records how many hours your
generator has run (up to 9,999.9).
G - 12 Volt DC Receptacle — Use this receptacle with battery
charge cables to charge a 12 Volt battery.
H - Oil Drain Plug — Drain engine oil here.
J - Ignition Switch — Push to start and stop the engine.
K - Battery Float Charger Jack — Use battery float charger jack to
keep the starting battery charged and ready for use.
L - Idle Control Switch — Use this switch to turn the idle control
feature on and off.
M - Grounding Fastener — If required, please consult a qualified
electrician, electrical inspector, or local agency having jurisdiction.
N - Identification Label – Provides model, revision and serial
number of generator. Please have these readily available if
calling for assistance.
P - 120 Volt AC, 20 Amp Duplex Receptacles — May be used to
supply electrical power for the operation of 120 Volt AC,
20 Amp, single phase, 60 Hz electrical lighting, appliance, tool
and motor loads.
Q - 120 Volt AC, 30 Amp Locking Receptacle — May be used to
supply electrical power for the operation of 120 Volt AC,
30 Amp, single phase, 60 Hz electrical lighting, appliance, tool
and motor loads.
R - 120/240 Volt AC, 30 Amp Locking Receptacle — May be used
to supply electrical power for the operation of 120 and/or
240 Volt AC, 30 Amp, single phase, 60 Hz electrical lighting,
appliance, tool and motor loads.
S - GFCI Circuit Breaker — A GFCI circuit breaker is provided to
protect against electrical ground fault and protect the generator
against electrical overload.
T - Rocker Switch Circuit Breaker — The 120/240 Volt AC, 30A
locking receptacle and the 120 Volt AC, 30A locking receptacle
is provided with a 2 pole circuit breaker to protect the generator
against electrical overload.
V - Recoil Starter — Used to start the engine manually.
W - Spark Arrester Muffler — Exhaust muffler lowers engine noise
and is equipped with a spark arrester screen.
X - Circuit Breakers (AC) — The 120 Volt AC, 20A duplex
receptacle is provided with "push to reset" circuit breakers to
protect the generator against electrical overload.
Y - Choke Control — Used when starting a cold engine.
Z - Air Cleaner — Protects engine by filtering dust and debris out
of intake air.
A
E
G
HQ
X
M
F
P
J
K
L
D
R
S
T
V
C
B
Y
W
N
Z

Cord Sets and Receptacles
Use only high quality, well-insulated, grounded extension
cords with the generator’s 120 Volt duplex receptacle.
Inspect extension cords before each use.
Check the ratings of all extension cords before you use
them. Extension cord sets used should be rated for 125 Volt
AC loads at 20 Amps or greater for most electrical devices.
Some devices, however, may not require this type of
extension cord. Check the operator’s manuals of those
devices for the manufacturer’s recommendations.
Keep extension cords as short as possible to minimize
voltage drop.
120/240 Volt AC, 30 Amp, Locking Receptacle
Use a NEMA L14-30 plug with this receptacle. Connect a
4-wire cord set rated for 250 Volt AC loads at 30 Amps (or
greater). You can use the same 4-wire cord if you plan to run
a 120 Volt load.
This receptacle powers 120/240 Volt AC, 60 Hz, single phase
loads requiring up to 7,200 watts of power (7.2 kW) at
30 Amps for 240 Volts or two independent 120 Volt loads at
30 Amps each. The outlet is protected by a rocker switch
circuit breaker and/or a 2 pole GFCI circuit breaker.
NOTICE Receptacles may be marked with rating value
greater than generator output capacity.
• NEVER attempt to power a device requiring more amperage than
generator or receptacle can supply.
• DO NOT overload the generator. See Don’t Overload Generator.
120 Volt AC, 30 Amp Locking Receptacle
Use a NEMA L5–30 plug with this receptacle. Connect a
3–wire cord set rated for 125 Volt AC loads at 30 Amps to
the plug.
Use this receptacle to operate 120 Volt AC, 60 Hz, single
phase loads requiring up to 3,600 watts (3.6 kW) of power at
30 Amps. The outlet is protected by a rocker switch circuit
breaker and/or a 2 pole GFCI circuit breaker.
120 Volt AC, 20 Amp, Duplex Receptacles
The duplex receptacle is protected against overload by a
push–to–reset circuit breaker and/or a 2 pole GFCI circuit
breaker.
Use each receptacle to operate 120 Volt AC, single-phase,
60 Hz electrical loads requiring up to 2,400 watts (2.4 kW) at
20 Amps of current. Use cord sets that are rated for 125 Volt
AC loads at 20 Amps (or greater). Inspect cord sets before
each use.
12 Volt DC, 10 Amp Receptacle
This receptacle allows you to recharge a 12 Volt automotive
or utility style storage battery with the battery charge cables
provided.
This receptacle can not recharge 6 Volt batteries and can not
be used to crank an engine having a discharged battery. See
the section Charging a Battery before attempting to recharge
a battery.
WARNING Overloaded electrical cords can overheat,
arc, and burn resulting in death, bodily injury,
and/or property damage.
• ONLY use cords rated for your loads.
• Follow all safeties on electrical cords.
4-Wire Cord Set
240V
120V 120V
W (Neutral)
X (Hot)
Y (Hot)
NEMA L14-30 Ground (Green)
12 BRIGGSandSTRATTON.COM
3-Wire Cord Set
Neutral
120V
Hot
Ground (Green)
NEMA L5-30

Ground Fault Protection
This unit is equipped with a Ground Fault Circuit Interrupter
(GFCI). This device meets applicable federal, state and local
codes.
The GFCI protects against electrical shock that may be
caused if your body becomes a path which electricity travels
to reach ground. This could happen if you touch a “Live”
appliance or wire, or are touching plumbing or other
materials that connect to the ground.
When protected by a GFCI, one may still feel a shock, but the
GFCI should cut current off quickly enough so that a person in
normal health should not suffer any serious electrical injury.
Test GFCI Circuit Breaker
Test your GFCI circuit breaker every month, as follows:
1. While generator is running, push white “Test” button.
The circuit breaker should trip (handle will move to
approximate center position), which will disconnect
power to outlets.
2. If handle moves to center, reset circuit breaker by
firmly moving handle to “Off” (down) position, then to
“On” (up) position.
During Generator Use
If circuit breaker trips during use, it usually indicates faulty
electrical equipment or cords. However, test the circuit
breaker as follows;
1. Disconnect loads, reset and test circuit breaker as
described earlier. Let generator run without any loads
for 1 minute.
2. If circuit breaker tests correctly, the electrical equipment
or extension cords may be faulty. Replace faulty
electrical equipment and cords before further use.
Battery Charger
Use battery float charger jack to keep the starting battery
charged and ready for use. Battery charging should be done in a
dry location, such as inside a garage.
1. Plug charger into unit’s “Battery Float Charger” jack,
which is located on the control panel. Plug battery
charger into a 120 Volt AC wall receptacle.
2. Unplug charger from unit and wall outlet when generator
is being started and while it is in operation.
3. Keep this charger plugged in when generator is not in
use to prolong battery life. The charger has a built in
float equalizer and will not overcharge the battery, even
when plugged in for an extended period of time.
IMPORTANT: See Battery Maintenance for additional
information.
13
CAUTION If circuit breaker does not trip:
• DO NOT use generator.
• Call a Briggs & Stratton Power Products service center.
WARNING Generator produces hazardous
voltage/current.
• The GFCI will not protect you against the following situations:
-Line-to-line shocks;
-Current overloads or line-to-line short circuits.
• The fuse or circuit breaker at the control panel must provide
such protection.
CAUTION If circuit breaker does not reset properly:
• DO NOT use generator.
• Call a Briggs & Stratton Power Products service center.
CAUTION If circuit breaker trips in the 1 minute
period:
• DO NOT use generator.
• Call a Briggs & Stratton Power Products service center.
CAUTION If circuit breaker tests correctly:
• Have qualified personnel check all electrical equipment and
cords for any defects.
• Replace electrical equipment and cords or take to a qualified
repair center.
WARNING Generator produces hazardous
voltage/current.
• DO NOT touch bare wires or receptacles.
• DO NOT use generator with electrical cords which are worn,
frayed, bare or otherwise damaged.
• DO NOT operate generator in the rain or wet weather.
• DO NOT handle generator or electrical cords while standing in
water, while barefoot, or while hands or feet are wet.
• DO NOT allow unqualified persons or children to operate or
service generator or electrical loads.

Operation
Starting the Engine
IMPORTANT: Always unplug the battery float charger before
starting the generator.
Disconnect all electrical loads from the generator. Use the
following start instructions:
1. Make sure unit is on a level surface.
IMPORTANT: Failure to start and operate the unit on a level
surface will cause the unit not to start or shut down during
operation.
2. Turn the fuel valve (A) to the “On” position.
3. Make sure idle control switch is in “Off” position.
4. Pull choke control out to close choke.
5A. For electric starting, push and hold the ignition switch
in “Start” position until generator starts. To prolong the
life of starter components, DO NOT hold ignition switch
in “Start” position for more than 15 seconds, and
pause for at least 1 minute between starting attempts.
• If engine starts, proceed to step 7.
• If engine fails to start, proceed to step 6.
NOTE: If battery is discharged, use manual starting
instructions.
5B. For manual starting, place ignition switch in “Run”
position, grasp recoil handle and pull slowly until slight
resistance is felt. Then pull rapidly one time only to
start engine.
• If engine starts, proceed to step 7.
• If engine fails to start, proceed to step 6.
6. Push in the choke handle half way, and pull recoil
handle twice or push and hold the ignition switch in the
“Start” position as described in step 5A.
• If engine fails to start, repeat steps 4 thru 5.
7. Open the choke gradually as the engine warms up by
pushing in on the choke handle.
IMPORTANT: If engine floods, place push choke handle all
the way in and crank until engine starts.
NOTE: If engine starts after 3 pulls but fails to run, or if unit
shuts down during operation, make sure unit is on a level
surface and check for proper oil level in crankcase. This unit
may be equipped with a low oil protection device. If so, oil
must be at proper level for engine to start.
Connecting Electrical Loads
1. Let engine stabilize and warm up for a few minutes
after starting.
2. Plug in and turn on the desired 120 and/or 240 Volt
AC, single phase, 60 Hz electrical loads.
A
14 BRIGGSandSTRATTON.COM
WARNING Contact with muffler area can result in
serious burns.
Exhaust heat/gases can ignite
combustibles, structures or damage
fuel tank causing a fire.
• DO NOT touch hot parts and AVOID hot exhaust gases.
• Allow equipment to cool before touching.
• Keep at least 5 feet (152 cm) of clearance on all sides of
generator including overhead.
• It is a violation of California Public Resource Code, Section
4442, to use or operate the engine on any forest-covered,
brush-covered, or grass-covered land unless the exhaust
system is equipped with a spark arrester, as defined in Section
4442, maintained in effective working order. Other states or
federal jurisdictions may have similar laws.
Contact the original equipment manufacturer, retailer, or dealer
to obtain a spark arrester designed for the exhaust system
installed on this engine.
• Replacement parts must be the same and installed in the same
position as the original parts.
WARNING Starter cord kickback (rapid retraction) can
result in bodily injury. 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
and then pull rapidly to avoid kickback.
• NEVER start or stop engine with electrical devices plugged in
and turned on.

NOTE:
• DO NOT connect 240 Volt loads to the 120 Volt duplex
receptacles.
• DO NOT connect 3-phase loads to the generator.
• DO NOT connect 50 Hz loads to the generator.
• DO NOT OVERLOAD THE GENERATOR. See Don’t
Overload Generator.
NOTICE Exceeding generators wattage/amperage capacity
can damage generator and/or electrical devices connected to
it.
• DO NOT exceed the generator’s wattage/amperage capacity. See
Don’t Overload Generator in the Operation section.
• Start generator and let engine stabilize before connecting
electrical loads.
• Connect electrical loads in OFF position, then turn ON for
operation.
• Turn electrical loads OFF and disconnect from generator before
stopping generator.
Stopping the Engine
1. Turn OFF and unplug all electrical loads from generator
panel receptacles. NEVER start or stop engine with
electrical devices plugged in and turned ON.
2. Move idle control switch to “Off” position.
3. Let engine run at no-load for several minutes to
stabilize internal temperatures of engine and generator.
4. Push ignition switch to “Stop” position.
5. Move fuel valve to “Off” position.
Operating Automatic Idle Control
This feature is designed to greatly improve fuel economy.
When this switch is turned ON, the engine will only run at
its normal high governed engine speed when electrical loads
are connected. When electrical loads are removed, the
engine will run at a reduced speed.
With the switch off, the engine will run at the normal high
engine speed. Always have the switch off when starting and
stopping the engine.
Oil Pressure Shutdown
If engine oil pressure drops below a preset level, an oil
switch will stop the engine. Check oil level with dipstick.
If oil level is between ADD and FULL mark on dipstick:
1. DO NOT try to restart the engine.
2. Contact a Briggs & Stratton Authorized Dealer.
3. DO NOT operate engine until oil pressure is corrected.
If oil level is below ADD mark on dipstick:
1. Add oil to bring level to FULL mark.
2. Restart engine and if the engine stops again a low oil
pressure condition may still exist. DO NOT try to restart
the engine.
3. Contact a Briggs & Stratton Authorized Dealer.
4. DO NOT operate engine until oil pressure is corrected.
Charging a Battery
Your generator has the capability of recharging a discharged
12 Volt automotive or utility style storage battery.
• DO NOT use the unit to charge any 6 Volt batteries.
• DO NOT use the unit to crank an engine having a
discharged battery.
To recharge 12 Volt batteries, proceed as follows:
1. Check fluid level in all battery cells. If necessary, add
ONLY distilled water to cover separators in battery
cells. DO NOT use tap water.
2. If battery is equipped with vent caps, make sure they
are installed and are tight.
3. If necessary, clean battery terminals.
4. Connect battery charge cable connector plug to panel
receptacle identified by the words “12V 10A D.C.”
5. Connect battery charge cable clamp with red handle to
the positive (+) battery terminal.
6. Connect battery charge cable clamp with black handle
to the negative (–) battery terminal.
7. Start engine. Let engine run while battery recharges.
8. When battery has charged, shut down engine.
WARNING Battery posts, terminals and related
accessories contain lead and lead compounds - chemicals
known to the State of California to cause cancer and
reproductive harm. Wash hands after handling.
15
WARNING Backfire, fire or engine damage could
occur.
• DO NOT stop engine by moving choke control to “Choke”
position ().
WARNING Storage batteries give off explosive
hydrogen gas during recharging.
Hydrogen gas stays near battery for a
long time after battery has been charged.
Slightest spark will ignite hydrogen and cause explosion.
You can be blinded or severely injured.
Battery electrolyte fluid contains acid and is extremely
caustic.
Contact with battery fluid will cause severe chemical burns.
• DO NOT allow any open flame, spark, heat, or lit cigarette
during and for several minutes after charging a battery.
• Wear protective goggles, rubber apron, and rubber gloves.

NOTE: Use an automotive hydrometer to test battery state of
charge and condition. Follow the hydrometer manufacturer’s
instructions carefully. Generally, a battery is considered to be
at 100% state of charge when specific gravity of its fluid (as
measured by hydrometer) is 1.260 or higher.
Cold Weather Operation
Under certain weather conditions (temperatures below 40°F
[4°C] combined with high humidity), your generator may
experience icing of the carburetor and/or the crankcase
breather system. To reduce this problem, you need to
perform the following:
1. Make sure generator has clean, fresh fuel.
2. Open fuel valve (turn valve to open position).
3. Use SAE 5W-30 oil.
4. Check oil level daily or after every eight (8) hours of
operation.
5. Maintain generator following Maintenance Schedule in
Maintenance section.
6. Shelter unit from elements.
Creating a Temporary Cold Weather Shelter
1. For temporary shelter, the original shipping carton can
be used.
2. Cut off top carton flaps and one long side of carton to
expose muffler side of unit. If required, tape up other
sides of carton to fit over generator as shown.
NOTE: If required, remove wheel kit to fit carton over
generator as shown.
3. Cut appropriate slots to access receptacles of unit.
4. Face exposed end away from wind and elements.
5. Locate generator as described in the section Generator
Location. Keep exhaust gas from entering a confined
area through windows, doors, ventilation intakes or
other openings.
6. Start generator as described in the section Starting the
Engine, then place carton over generator. Keep at least
5 ft. (1.5 m) clearance on all sides of generator
including overhead with shelter in place.
7. Remove shelter when temperatures are above 40°F
[4°C].
8. Turn engine OFF and let cool two (2) minutes before
refueling. Let any spilled fuel evaporate before starting
engine.
Building a Cold Weather Shelter
1. Using non combustible material with a fire rating of at
least one hour, build a shelter that will enclose three
sides and the top of the generator. Make sure muffler
side of generator is exposed.
NOTE: Contact your local building material supplier for non
combustible materials with a fire rating of at least one hour.
IMPORTANT: Be sure shelter can easily be repositioned for
change in wind direction.
2. DO NOT enclose generator any more than shown.
Shelter should hold enough heat created by the
generator to prevent icing problem.
NOTE: If a wheel kit is installed on the generator, enlarge
shelter accordingly.
3. Follow steps 3 through 8 as described previously in
Creating a Temporary Cold Weather Shelter.
WARNING Contact with muffler area can result in
serious burns.
Exhaust heat/gases can ignite
combustibles, structures or damage
fuel tank causing a fire.
• DO NOT touch hot parts and AVOID hot exhaust gases.
• Allow equipment to cool before touching.
• Keep at least 5 feet (152 cm) of clearance on all sides of
generator including overhead.
• Remove shelter when temperatures are above 40°F [4°C].
16 BRIGGSandSTRATTON.COM
Wind
Typical Generator
Shown
WARNING Running engine gives off carbon
monoxide, an odorless, colorless, poison gas.
Breathing carbon monoxide can cause headache,
fatigue, dizziness, vomiting, confusion, seizures,
nausea, fainting or death.
• Operate generator ONLY outdoors.
• Install a battery operated carbon monoxide alarm near the
bedrooms.
• Keep exhaust gas from entering a confined area through
windows, doors, ventilation intakes, or other openings.
• DO NOT start or run engine indoors or in an enclosed area,
(even if windows and doors are open), including the generator
compartment of a recreational vehicle (RV).

Don’t Overload Generator
Capacity
You must make sure your generator can supply enough
rated (running) and surge (starting) watts for the items you
will power at the same time. Follow these simple steps:
1. Select the items you will power at the same time.
2. Total the rated (running) watts of these items. This is
the amount of power your generator must produce to
keep your items running. See the table on the right.
3. Estimate how many surge (starting) watts you will need.
Surge wattage is the short burst of power needed to
start electric motor-driven tools or appliances such as a
circular saw or refrigerator. Because not all motors start
at the same time, total surge watts can be estimated by
adding only the item(s) with the highest additional surge
watts to the total rated watts from step 2.
Example:
Total Rated (Running) Watts = 3275
Highest Additional Surge Watts = 2350
Total Generator Output Required = 5625
Power Management
To prolong the life of your generator and attached devices, it
is important to take care when adding electrical loads to your
generator. There should be nothing connected to the
generator outlets before starting its engine. The correct and
safe way to manage generator power is to sequentially add
loads as follows:
1. With nothing connected to the generator, start the
engine as described in this manual.
2. Plug in and turn on the first load, preferably the largest
load you have.
3. Permit the generator output to stabilize (engine runs
smoothly and attached device operates properly).
4. Plug in and turn on the next load.
5. Again, permit the generator to stabilize.
6. Repeat steps 4 and 5 for each additional load.
NEVER add more loads than the generator capacity. Take
special care to consider surge loads in generator capacity, as
described above.
* Wattages listed are approximate only. Check tool or
appliance for actual wattage.
17
Tool or Appliance Running (Rated) Watts Additional Starting (Surge) Watts
Water Well Pump 1200 2100
Refrigerator 700 2200
Furnace Fan 800 2350
Television 500 —
Light (75 Watts) 75 —
3275 Total
Running Watts
2350 Highest
Starting Watts
Wattage Reference Guide
Tool or Appliance
Running*
(Rated)
Watts
Additional
Starting
(Surge)
Watts
Essentials
Light Bulb - 75 watt 75 —
Furnace Fan Blower - 1/2 HP 800 2350
Sump Pump - 1/3 HP 800 1300
Refrigerator/Freezer 700 2200
Water Well Pump - 1/2 HP 1000 2100
Heating/Cooling
Window AC - 10,000 BTU 1200 3600
Humidifier - 13 Gal 175 —
Central AC - 24,000 BTU 3800 11400
Kitchen
Microwave Oven - 1000 Watt 1000 —
Coffee Maker 1000 —
Electric Stove - 8” Element 2100 —
Toaster 850 —
Family Room
DVD/CD Player 100 —
VCR 100 —
Stereo Receiver 450 —
Color Television - 27 in 500 —
Personal Computer w/17 in
monitor 800 —
Other
Security System 500 —
AM/FM Clock Radio 100 —
Garage Door Opener - 1/2 HP 875 2350
Electric Water Heater 4700 11700
DIY/Job Site
Quartz Halogen Work Light 1000 —
Airless Sprayer - 1/3 HP 600 1200
Reciprocating Saw 960 —
Electric Drill - 1/2 HP, 5.4 Amps 600 900
Circular Saw - 7-1/4 in 1400 2300
Miter Saw - 10 in 1800 1800
Table Planer - 6 in 1800 1800
Table Saw/Radial Arm Saw - 10 in 2000 2000
Air Compressor - 1 HP 1600 4500

Maintenance
Maintenance Schedule
Follow the hourly or calendar intervals, whichever occurs
first. More frequent service is required when operating in
adverse conditions noted below.
1Service more often under dirty or dusty conditions.
2Change engine oil every 50 hours if you are using your generator under heavy
load, or in extremely hot weather.
General Recommendations
Regular maintenance will improve the performance and
extend the life of the generator. See any authorized dealer for
service.
The generator’s warranty does not cover items that have
been subjected to operator abuse or negligence. To receive
full value from the warranty, the operator must maintain the
generator as instructed in this manual.
Some adjustments will need to be made periodically to
properly maintain your generator.
All service and adjustments should be made at least once
each season. Follow the requirements in the Maintenance
Schedule chart above.
NOTE: Once a year you should clean or replace the spark
plug and replace the air filter. A new spark plug and clean air
filter assure proper fuel-air mixture and help your engine run
better and last longer.
Emissions Control
Maintenance, replacement, or repair of the emissions
control devices and systems may be performed by any
non-road engine repair establishment or individual.
However, to obtain ”no charge” emissions control service,
the work must be performed by a factory authorized dealer.
See the Emissions Warranty.
Generator Maintenance
Generator maintenance consists of keeping the unit clean
and dry. Operate and store the unit in a clean dry
environment where it will not be exposed to excessive dust,
dirt, moisture, or any corrosive vapors. Cooling air slots in
the generator must not become clogged with snow, leaves,
or any other foreign material.
NOTE: DO NOT use water or other liquids to clean generator.
Liquids can enter engine fuel system, causing poor
performance and/or failure to occur. In addition, if liquid
enters generator through cooling air slots, some of the liquid
will be retained in voids and cracks of the rotor and stator
winding insulation. Liquid and dirt buildup on the generator
internal windings will eventually decrease the insulation
resistance of these windings.
Cleaning
Daily or before use, look around and underneath the
generator for signs of oil or fuel leaks. Clean accumulated
debris from inside and outside the generator. Keep the
linkage, spring and other engine controls clean. Keep the area
around and behind the muffler free from any combustible
debris. Inspect cooling air slots and openings on generator.
These openings must be kept clean and unobstructed.
Engine parts should be kept clean to reduce the risk of
overheating and ignition of accumulated debris:
• Use a damp cloth to wipe exterior surfaces clean.
NOTICE Improper treatment of generator can damage it
and shorten its life.
• DO NOT expose generator to excessive moisture, dust, dirt, or
corrosive vapors.
• DO NOT insert any objects through cooling slots.
• Use a soft bristle brush to loosen caked on dirt or oil.
• Use a vacuum cleaner to pick up loose dirt and debris.
Battery Maintenance
Other than float charging, described elsewhere, no
maintenance is required for the starting battery. Keep the
battery and terminals clean and dry.
IMPORTANT: Battery charging should be performed in a dry
location, such as inside a garage.
18 BRIGGSandSTRATTON.COM
First 8 Hours
• Change engine oil
Every 8 Hours or Daily
• Clean debris
• Check engine oil level
Every 25 Hours or Yearly
• Service engine air cleaner pre-filter1
Every 50 Hours or Yearly
• Inspect muffler and spark arrester
Every 100 Hours or Yearly
• Service engine air cleaner paper filter1
• Service fuel filter
• Service spark plugs
• Change engine oil and filter2
• Clean cooling system1
Every 250 Hours or Yearly
• Check valve clearance
WARNING Battery posts, terminals and related
accessories contain lead and lead compounds - chemicals
known to the State of California to cause cancer and
reproductive harm. Wash hands after handling.

Fuel Valve Maintenance
The fuel valve is equipped with a fuel sediment cup, screen,
retaining ring and o-ring that need to be cleaned every
100 hours or once a year (whichever occurs first).
1. Move fuel valve to “Off” position.
2. Remove sediment cup (A) from fuel valve. Remove
o-ring (B), retaining ring (C) and screen (D) from fuel
valve.
3. Wash sediment cup, o-ring, retaining ring, and screen
in a nonflammable solvent. Dry them thoroughly.
4. Place screen, retaining ring, and o-ring into fuel valve.
Install sediment cup and tighten securely.
5. Move fuel valve to “On” position, and check for leaks.
Replace o-ring if there is any leakage.
Engine Maintenance
Oil Recommendations
We recommend the use of Briggs & Stratton Warranty
Certified oils for best performance. Other high-quality
detergent oils are acceptable if classified for service SF, SG,
SH, SJ or higher. DO NOT use special additives.
Outdoor temperatures determine the proper oil viscosity for
the engine. Use the chart to select the best viscosity for the
outdoor temperature range expected.
* Below 40°F (4°C) the use of SAE 30 will result in hard starting.
** Above 80°F (27°C) the use of 10W30 may cause increased oil
consumption. Check oil level more frequently.
NOTE: Synthetic oil meeting ILSAC GF-2, API
certification mark and API service symbol 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.
Checking Oil Level
Oil level should be checked prior to each use or at least
every 8 hours of operation. Keep oil level maintained.
1. Make sure generator is on a level surface.
2. Clean area around oil dipstick, remove oil dipstick and
wipe dipstick with clean cloth. Insert dipstick firmly,
then remove and check oil level.
3. Verify oil is at “Full” mark on dipstick. Insert dipstick
firmly before starting engine.
Adding Engine Oil
1. Make sure generator is on a level surface.
2. Check oil level as described in Checking Oil Level.
3. If needed, remove oil fill cap and slowly pour oil into oil
fill opening to the “Full” mark on dipstick. DO NOT
overfill.
NOTICE Overfilling with oil may cause the engine to not
start, or hard starting.
• DO NOT overfill.
• If over the FULL mark on dipstick, drain oil to reduce oil level to
FULL mark on dipstick.
4. Replace and tighten both the oil fill cap and dipstick.
19
A
B
C
D
WARNING Unintentional sparking can result in fire or
electric shock.
WHEN ADJUSTING OR MAKING REPAIRS TO YOUR
GENERATOR
• Disconnect the spark plug wire from the spark plug and place
the wire where it cannot contact spark plug.
WHEN TESTING FOR ENGINE SPARK
• Use approved spark plug tester.
• DO NOT check for spark with spark plug removed.

Changing Engine Oil and Filter
If you are using your generator under heavy load, or in
extremely hot weather, change the oil more often.
KEEP OUT OF REACH OF CHILDREN. DON’T
POLLUTE. CONSERVE RESOURCES. RETURN
USED OIL TO COLLECTION CENTERS.
Change the oil while the engine is still warm from
running, as follows:
1. Make sure unit is on a level surface.
2. Disconnect the spark plug wires from the spark plug
and place the wire where it cannot contact spark plugs.
3. Clean area around oil drain plug. The oil drain plug is
located at base of engine.
4. Remove oil drain plug and oil fill cap and drain oil
completely into a suitable container.
5. Reinstall oil drain plug and tighten securely.
6. Place a suitable container beneath oil filter and turn
filter counterclockwise to remove.
7. Lightly coat gasket of a new filter with fresh engine oil.
Turn new filter clockwise until gasket contacts filter
adapter, then tighten an additional 3/4 turn.
8. Remove oil dipstick.
9. Slowly pour 32 oz. (1 liter) of recommended oil into oil
fill opening.
10. Start and run engine for 30 seconds. Shut engine off
and wait 30 seconds for oil to settle.
11. Add more oil to “Full” mark on dipstick. Wipe dipstick
clean each time oil level is checked. DO NOT overfill.
NOTE: Engine holds approximately 48 oz. (1.4 liters) when
changing oil and filter.
12. Reinstall oil fill cap and oil dipstick. Tighten oil fill cap
securely.
13. Wipe up any spilled oil.
14. Reconnect spark plug wires to spark plugs.
Service Air Cleaner
Your engine will not run properly and may be damaged if
you run it with a dirty air cleaner. Clean or replace more
often if operating under dusty or dirty conditions.
To service the air cleaner, follow these steps:
1. Unhook latches (A) on both sides of cover (B) and
remove cover.
2. Remove knob (C) and plate (D). Carefully remove air
cleaner assembly to prevent debris from entering
carburetor.
3. Slide foam pre-cleaner (F) off cartridge (E) and wash
pre-cleaner in liquid detergent and water.
4. Squeeze the pre-cleaner dry with a clean cloth. DO NOT
TWIST.
5. Tap cartridge gently on a solid surface to loosen and
remove trapped particles.
6. Reassemble clean (or new) pre-cleaner on clean (or
new) cartridge.
7. Install clean (or new) air cleaner assembly inside cover.
Dispose of old filter properly.
8. Reinstall knob and plate.
9. Replace cover and reattach latches to cover.
Service Spark Plugs
Changing the spark plugs will help your engine to start easier
and run better.
1. Clean area around spark plugs.
2. Remove and inspect spark plugs.
3. Check electrode gap with wire feeler gauge and reset
spark plug gap to recommended gap if necessary (see
Specifications).
20 BRIGGSandSTRATTON.COM
AC
BD
F
E
CAUTION Avoid prolonged or repeated skin contact
with used motor oil.
• Used motor oil has been shown to cause skin cancer in certain
laboratory animals.
• Thoroughly wash exposed areas with soap and water.