Owner’s Manual
GENERATOR
EU3000i 
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2014 |
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Initial Use Instructions |
012 |
Honda Motor Co., Ltd. -All Rights Reserved |
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The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
California Proposition 65
This product contains or emits chemicals known to the state of California to cause cancer, birth defects or other reproductive harm
Exhaust contains poisonous carbon monoxide gas that can build up to dangerous levels in closed areas. Breathing carbon monoxide can cause unconsciousness or death.
Never run the generator in a closed, or even partly closed area where people may be present.
Keep this owner’s manual handy so that you can refer to it at any time. This owner’s manual is considered a permanent part of the generator and should remain with the generator if resold.
The information and specifications included in this publication were in effect at the time of approval for printing. Honda Motor Co., Ltd. reserves the right, however, to discontinue or change specifications or design at any time without notice and without incurring any obligation whatsoever.
INTRODUCTION
Congratulations on your selection of a Honda generator. We are certain you will be pleased with your purchase of one of the finest generators on the market.
We want to help you get the best results from your new generator and to operate it safely. This manual contains all the information on how to do that; please read it carefully.
As you read this manual, you will find information preceded by a 
symbol. That information is intended to help you avoid damage
to your generator, other property, or the environment.
We suggest you read the Distributor’s Limited Warranty (see page 76) to fully understand its coverage and your responsibilities of ownership.
When your generator needs scheduled maintenance, keep in mind that your Honda servicing dealer is specially trained in servicing Honda generators and is supported by the parts and service divisions of American Honda. Your Honda servicing dealer is dedicated to your satisfaction and will be pleased to answer your questions and concerns.
Best Wishes,
Honda Motor Co., Ltd.
1
A FEW WORDS ABOUT SAFETY
Your safety and the safety of others are very important. And using this generator safely is an important responsibility.
To help you make informed decisions about safety, we have provided operating procedures and other information on labels and in this manual. This information alerts you to potential hazards that could hurt you or others.
Of course, it is not practical or possible to warn you about all the hazards associated with operating or maintaining a generator. You must use your own good judgement.
You will find important safety information in a variety of forms, including:
•Safety Labels — on the generator.
•Safety Messages — preceded by a safety alert symbol 
and one of three signal words, DANGER, WARNING, or CAUTION.
These signal words mean:
You WILL be KILLED or SERIOUSLY HURT if you don’t follow instructions.
You CAN be KILLED or SERIOUSLY HURT if you don’t follow instructions.
You CAN be HURT if you don’t follow instructions.
•Safety Headings — such as IMPORTANT SAFETY INFORMATION.
•Safety Section — such as GENERATOR SAFETY.
•Instructions — how to use this generator correctly and safely.
This entire book is filled with important safety information — please read it carefully.
2
CONTENTS |
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GENERATOR SAFETY................................................................................ |
6 |
IMPORTANT SAFETY INFORMATION .................................................. |
6 |
Operator Responsibility..................................................................... |
6 |
Carbon Monoxide Hazards................................................................ |
6 |
Electric Shock Hazards ...................................................................... |
7 |
Fire and Burn Hazards ....................................................................... |
7 |
Refuel With Care ................................................................................ |
8 |
SAFETY LABEL LOCATIONS ................................................................. |
9 |
CONTROLS & FEATURES ....................................................................... |
10 |
COMPONENT & CONTROL LOCATIONS ........................................... |
10 |
CONTROLS........................................................................................... |
12 |
Engine Switch .................................................................................. |
12 |
Starter Grip....................................................................................... |
12 |
Fuel Filler Cap Vent Lever................................................................ |
13 |
Eco-Throttle Switch ......................................................................... |
13 |
Parallel Operation Outlets ............................................................... |
14 |
AC Circuit Protectors ....................................................................... |
14 |
DC Receptacle .................................................................................. |
15 |
DC Circuit Protector ......................................................................... |
15 |
Folding Handle ................................................................................. |
16 |
FEATURES ............................................................................................ |
17 |
Ground Terminal .............................................................................. |
17 |
Output Indicator ............................................................................... |
18 |
Overload Indicator ........................................................................... |
19 |
Oil Alert Indicator............................................................................. |
19 |
BEFORE OPERATION............................................................................... |
20 |
ARE YOU READY TO GET STARTED? ................................................ |
20 |
Knowledge........................................................................................ |
20 |
IS YOUR GENERATOR READY TO GO?.............................................. |
20 |
Check the Engine ............................................................................. |
21 |
3
CONTENTS |
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OPERATION.............................................................................. |
22 |
SAFE OPERATING PRECAUTIONS ............................................ |
22 |
STARTING THE ENGINE .......................................................... |
23 |
STOPPING THE ENGINE .......................................................... |
26 |
AC OPERATION ..................................................................... |
28 |
AC Applications .................................................................. |
29 |
AC PARALLEL OPERATION ..................................................... |
30 |
AC Parallel Operation Applications......................................... |
32 |
DC OPERATION ..................................................................... |
34 |
ECO-THROTTLE SYSTEM........................................................ |
37 |
STANDBY POWER.................................................................. |
38 |
Connections to a Building’s Electrical System ......................... |
38 |
System Ground................................................................... |
38 |
Special Requirements........................................................... |
39 |
SERVICING YOUR GENERATOR .................................................. |
40 |
THE IMPORTANCE OF MAINTENANCE ..................................... |
40 |
MAINTENANCE SAFETY ......................................................... |
41 |
Safety Precautions .............................................................. |
41 |
MAINTENANCE SCHEDULE ..................................................... |
42 |
REFUELING............................................................................ |
43 |
FUEL RECOMMENDATIONS..................................................... |
45 |
ENGINE OIL LEVEL CHECK ...................................................... |
46 |
ENGINE OIL CHANGE ............................................................. |
48 |
ENGINE OIL RECOMMENDATIONS ........................................... |
50 |
AIR CLEANER SERVICE........................................................... |
51 |
AIR FILTER CLEANING ............................................................ |
53 |
SPARK PLUG SERVICE............................................................ |
54 |
SPARK ARRESTER SERVICE .................................................... |
56 |
STORAGE................................................................................. |
58 |
STORAGE PREPARATION........................................................ |
58 |
Cleaning............................................................................. |
58 |
Fuel................................................................................... |
58 |
Engine Oil........................................................................... |
61 |
STORAGE PRECAUTIONS ....................................................... |
62 |
REMOVAL FROM STORAGE .................................................... |
62 |
4
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CONTENTS |
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TRANSPORTING........................................................................ |
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63 |
TAKING CARE OF UNEXPECTED PROBLEMS ................................ |
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64 |
ENGINE WILL NOT START....................................................... |
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64 |
ENGINE LACKS POWER .......................................................... |
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65 |
NO POWER AT THE AC RECEPTACLES .................................... |
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66 |
NO POWER AT THE DC RECEPTACLE ...................................... |
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66 |
TECHNICAL INFORMATION ........................................................ |
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67 |
Serial Number Location ........................................................ |
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67 |
Carburetor Modification for High Altitude Operation................. |
68 |
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Emission Control System Information..................................... |
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69 |
Air Index ............................................................................ |
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71 |
Specifications ..................................................................... |
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72 |
Wiring Diagram ................................................................... |
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73 |
CONSUMER INFORMATION........................................................ |
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74 |
Dealer Locator Information ................................................... |
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74 |
Honda Publications.............................................................. |
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74 |
Customer Service Information............................................... |
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75 |
Distributor’s Limited Warranty .............................................. |
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76 |
Emission Control System Warranty........................................ |
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81 |
INITIAL USE INSTRUCTIONS ...................................................... |
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86 |
ENGINE OIL ........................................................................... |
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86 |
FUEL .................................................................................... |
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87 |
BEFORE OPERATION .............................................................. |
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89 |
REGISTRATION...................................................................... |
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89 |
INDEX...................................................................................... |
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90 |
QUICK REFERENCE INFORMATION......................... |
Inside back cover |
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5
GENERATOR SAFETY
IMPORTANT SAFETY INFORMATION
Honda generators are designed for use with electrical equipment that has suitable power requirements. Other uses can result in injury to the operator or damage to the generator and other property.
Most injuries or property damage can be prevented if you follow all instructions in this manual and on the generator. The most common hazards are discussed below, along with the best way to protect yourself and others.
Operator Responsibility
•Know how to stop the generator quickly in case of emergency.
•Understand the use of all generator controls, output receptacles, and connections.
•Be sure that anyone who operates the generator receives proper instruction. Do not let children operate the generator without parental supervision.
Carbon Monoxide Hazards
A generator's exhaust contains toxic carbon monoxide, which you cannot see or smell. Breathing carbon monoxide can KILL YOU IN MINUTES. To avoid carbon monoxide poisoning, follow these instructions when operating a generator:
•Only run a generator OUTSIDE, far away from windows, doors, and vents.
•Never operate a generator inside a house, garage, basement, crawl space, or any enclosed or partially enclosed space.
•Never operate a generator near open doors or windows.
•Get fresh air and seek medical attention immediately if you suspect you have inhaled carbon monoxide.
Early symptoms of carbon monoxide exposure include headache, fatigue, shortness of breath, nausea, and dizziness. Continued exposure to carbon monoxide can cause loss of muscular coordination, loss of consciousness, and then death.
6
GENERATOR SAFETY
To alert you to potentially dangerous levels of carbon monoxide coming from a generator operating outside or from other sources, install battery operated carbon monoxide alarms or plug-in carbon monoxide alarms with battery back-up on every level of the home and outside sleeping areas, according to the manufacturer's instructions.
Electric Shock Hazards
•The generator produces enough electric power to cause a serious shock or electrocution if misused.
•Using a generator or electrical appliance in wet conditions, such as rain or snow, or near a pool or sprinkler system, or when your hands are wet, could result in electrocution. Keep the generator dry.
•If the generator is stored outdoors, unprotected from the weather, check all of the electrical components on the control panel before each use. Moisture or ice can cause a malfunction or short circuit in electrical components that could result in electrocution.
•Do not connect to a building’s electrical system unless an isolation switch has been installed by a qualified electrician.
•Use only a Honda approved parallel operation cable kit (optional equipment) when connecting two EU3000i generators for parallel operation.
•Never connect different generator models.
Fire and Burn Hazards
•The exhaust system gets hot enough to ignite some materials.
–Keep the generator at least 3 feet (1 meter) away from buildings and other equipment during operation.
–Do not enclose the generator in any structure.
–Keep flammable materials away from the generator.
•The muffler becomes very hot during operation and remains hot for a while after stopping the engine. Be careful not to touch the muffler while it is hot. Let the engine cool before storing the generator indoors.
7
GENERATOR SAFETY
Refuel With Care
Gasoline is extremely flammable, and gasoline vapor can explode. Allow the engine to cool if the generator has been in operation. Refuel only outdoors in a well-ventilated area with the engine off. Do not refuel during operation.
Do not overfill the fuel tank.
Never smoke near gasoline, and keep other flames and sparks away. Always store gasoline in an approved container.
Make sure that any spilled fuel has been wiped up before starting the engine.
8
GENERATOR SAFETY
SAFETY LABEL LOCATIONS
These labels warn you of potential hazards that can cause serious injury. Read them carefully. If a label comes off or becomes hard to read, contact your Honda servicing dealer for a replacement.
9
CONTROLS & FEATURES
COMPONENT & CONTROL LOCATIONS
Use the illustrations on these pages to locate and identify the most frequently used controls.
OVERLOAD INDICATOR
OUTPUT INDICATOR |
OIL ALERT INDICATOR |
|
30 A AC CIRCUIT |
30 A TWIST LOCK |
PROTECTOR |
RECEPTACLE |
20 A AC CIRCUIT |
|
PROTECTOR |
PARALLEL |
|
OPERATION |
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OUTLETS |
20 A RECEPTACLES |
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|
DC CIRCUIT |
|
PROTECTOR |
GROUND TERMINAL |
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DC RECEPTACLE |
ENGINE SWITCH |
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ECO-THROTTLE SWITCH |
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FUEL FILLER CAP
VENT LEVER
FUEL FILLER CAP 
FOLDING HANDLE
STARTER GRIP
10
CONTROLS & FEATURES
AIR CLEANER COVER
MUFFLER
FILTERS
SPARK PLUG MAINTENANCE
COVER
SPARK PLUG
OIL MAINTENANCE COVER
OIL FILLER CAP
11
CONTROLS & FEATURES
CONTROLS
Engine Switch
The engine switch controls the ignition system, fuel valve and choke valve.
OFF – Stops the engine and closes the fuel valve.
ON – Running position; opens the fuel valve and allows the engine to be started.
CHOKE – Closes choke valve. The choke is used to provide proper starting mixture when the engine is cold.
Starter Grip
Pulling the starter grip operates the recoil starter to crank the engine.
Do not allow the starter grip to snap back against the generator. Return it gently to prevent damage to the starter.
CHOKE
ON
OFF 
ENGINE SWITCH
Direction to pull 
STARTER GRIP
12
CONTROLS & FEATURES
Fuel Filler Cap Vent Lever
The fuel filler cap is provided with a vent lever to seal the fuel tank.
The vent lever must be in the ON position for the engine to run.
When the engine is not in use, leave the vent lever in the OFF position to reduce the possibility of fuel leakage. Allow the engine to cool well before turning the vent lever to the OFF position.
OFF
ON
FUEL FILLER CAP
FUEL FILLER CAP VENT LEVER
Eco-Throttle™ Switch
The Eco-Throttle™ system automatically reduces engine speed when loads are turned off or disconnected. When appliances are turned on or reconnected, the engine returns to the proper speed to power the electrical load.
If high electrical loads are connected simultaneously, turn the Eco-Throttle switch to the OFF position to reduce voltage changes. When using the DC output, turn the Eco-Throttle switch to the OFF position.
ON: Recommended to minimize fuel consumption and further reduce noise levels when less than a full load is applied to the generator.
OFF: The Eco-Throttle system does not operate.
ON
OFF
ECO-THROTTLE SWITCH
13
CONTROLS & FEATURES
Parallel Operation Outlets
These outlets are used for connecting two EU3000i generators for parallel operation (see page 30). A Honda approved parallel operation cable kit (optional equipment) is required for parallel operation. This kit can be purchased from an authorized Honda generator dealer.
PARALLEL OPERATION
OUTLETS
AC Circuit Protectors
The AC circuit protectors will automatically switch to OFF if there is a short circuit or a significant overload of the generator at the 120 V 20 A receptacle or 120 V 30 A twist lock receptacle. If an AC circuit protector switches OFF automatically, check that the appliance is working properly and does not exceed the rated load capacity of the circuit before resetting the AC circuit protector ON.
AC CIRCUIT PROTECTOR |
AC CIRCUIT PROTECTOR |
AC CIRCUIT PROTECTOR |
(30 A) |
(20 A) |
|
|
|
ON |
OFF 
PUSH
30 A RECEPTACLE |
20 A RECEPTACLES |
14
CONTROLS & FEATURES
DC Receptacle
The DC receptacle should ONLY be used for charging 12-volt automotive type batteries. The DC charging output is not regulated.
DC Circuit Protector
The DC circuit protector automatically shuts off the DC battery charging circuit when the DC charging circuit is overloaded, when there is a problem with the battery, or when the connections between the battery and the generator are improper. However, the DC circuit protector does not prevent overcharging.
DC RECEPTACLE
OFF 
PUSH
ON
DC CIRCUIT PROTECTOR
15
CONTROLS & FEATURES
Folding Handle
The foldable handle is intended for ease of transportation and should be folded when the generator is stationary. Do not rest objects on the handle when in the transport position.
To Extend The Handle
Lift the handle upward with both hands.
To Fold The Handle
Lower the handle with both hands until it clicks into place.
FOLDING HANDLE
Handle transport position
CATCH
Generator stationary position
To avoid overturning or damage:
•Do not use the folding handle when moving the generator over rough surfaces.
•When two people carry the generator, close the folding handle.
•Do not place any objects on the generator.
: CORRECT |
: INCORRECT |
16
CONTROLS & FEATURES
FEATURES
Ground Terminal
The generator ground terminal is connected to the frame of the generator, the metal non-current-carrying parts of the generator, and the ground terminals of each receptacle.
Before using the ground terminal, consult a qualified electrician, electrical inspector, or local agency having jurisdiction for local codes or ordinances that apply to the intended use of the generator.
GROUND TERMINAL
17
CONTROLS & FEATURES
Output Indicator
The output indicator (green) is illuminated when the generator is operating normally. It indicates that the generator is producing electrical power at the receptacles.
In addition, the output indicator has a simplified hour meter function. When you start the engine, the indicator blinks according to the generator’s cumulative operating hours as follows:
• No blinks: |
0–100 hours |
• 1 blink: |
100–200 hours |
•2 blinks: 200–300 hours
•3 blinks: 300–400 hours
•4 blinks: 400–500 hours
•5 blinks: 500 or more hours
OUTPUT INDICATOR (GREEN)
18
CONTROLS & FEATURES
Overload Indicator
If the generator is overloaded (in excess of 3.0 kVA), or if there is a short circuit in a connected appliance, the overload indicator (red) will come on. If the overload indicator (red) stays on continuously for more than 4 seconds, current to the connected appliance(s) will shut off, and the output indicator (green) will go off. However, the engine will continue to run.
OVERLOAD INDICATOR (RED) 
Oil Alert® Indicator
The Oil Alert® system is designed to prevent engine damage caused by an insufficient amount of oil in the crankcase. Before the oil level in the crankcase can fall below a safe limit, the Oil Alert indicator (red) comes on and the Oil Alert system automatically will stop the engine (the engine switch will remain in the ON position).
If the engine stops or the Oil Alert indicator (red) comes on when you pull the starter grip, check the engine oil level (see page 46) before troubleshooting in other areas.
OIL ALERT INDICATOR
(RED)
19
BEFORE OPERATION
ARE YOU READY TO GET STARTED?
Your safety is your responsibility. A little time spent in preparation will significantly reduce your risk of injury.
Knowledge
Read and understand this manual. Know what the controls do and how to operate them.
Familiarize yourself with the generator and its operation before you begin using it. Know how to quickly shut off the generator in case of an emergency.
If the generator is being used to power appliances, be sure that they do not exceed the generator’s load rating (see pages 29 and 33).
IS YOUR GENERATOR READY TO GO?
For your safety, to ensure compliance with environmental regulations, and to maximize the service life of your equipment, it is very important to take a few moments before you operate the generator to check its condition. Be sure to take care of any problem you find, or have your servicing dealer correct it, before you operate the generator.
Improperly maintaining this generator, or failing to correct a problem before operation, could cause a malfunction in which you could be seriously injured.
Always perform a pre-operation inspection before each operation, and correct any problem.
20
BEFORE OPERATION
To prevent a possible fire, keep the generator at least 3 feet (1 meter) away from building walls and other equipment during operation. Do not place flammable objects close to the engine.
Before beginning your pre-operation checks, be sure the generator is on a level surface and the engine switch is in the OFF position.
Check the Engine
•Before each use, look around and underneath the engine for signs of oil or gasoline leaks.
•Check the oil level (see page 46). A low oil level will cause the Oil Alert system to shut down the engine.
•Check the air filter (see page 51). A dirty air filter will restrict air flow to the carburetor, reducing engine and generator performance.
•Check the fuel level (see page 43). Starting with a full tank will help to eliminate or reduce operating interruptions for refueling.
21
OPERATION
SAFE OPERATING PRECAUTIONS
Before operating the generator for the first time, review chapters
GENERATOR SAFETY (see page 6) and BEFORE OPERATION (see page 20).
For your safety, do not operate the generator in an enclosed area such as a garage. Your generator’s exhaust contains poisonous carbon monoxide gas that can collect rapidly in an enclosed area and cause illness or death.
Exhaust contains poisonous carbon monoxide gas that can build up to dangerous levels in closed areas. Breathing carbon monoxide can cause unconsciousness or death.
Never run the generator in a closed, or even partly closed area where people may be present.
Before connecting an AC appliance or power cord to the generator:
•Use grounded 3-prong extension cords, tools, and appliances, or double-insulated tools and appliances.
•Inspect cords and plugs, and replace if damaged.
•Make sure that the appliance is in good working order. Faulty appliances or power cords can create a potential for electric shock.
•Make sure the electrical rating of the tool or appliance does not exceed the rated power of the generator or the receptacle being used.
•Operate the generator at least 3 feet (1 meter) away from buildings and other equipment.
•Do not operate the generator in an enclosed structure.
•Do not place flammable objects close to the engine.
22
OPERATION
STARTING THE ENGINE
To prevent a possible fire, keep the generator at least 3 feet (1 meter) away from building walls and other equipment during operation. Do not place flammable objects close to the engine.
Operating this generator less than 3 feet (1 meter) from a building or other obstruction can cause overheating and damage the generator. For proper cooling, allow at least 3 feet (1 meter) of empty space above and around the generator.
Refer to SAFE OPERATING PRECAUTIONS on page 22 and perform the IS YOUR GENERATOR READY TO GO checks (see page 20). Refer to AC OPERATION (see page 28) or DC OPERATION (see page 34) for connecting loads to the generator.
1.Make sure that all appliances connected to the generator are turned off. The generator may be hard to start if a load is connected.
2.Turn the fuel filler cap vent lever to the ON position.
ON
FUEL FILLER CAP VENT LEVER
23
OPERATION
3.Make sure the Eco-Throttle switch is in the OFF position.
4.Turn the engine switch to the ON position.
To start a cold engine, turn the engine switch to the CHOKE position.
To restart a warm engine, leave the engine switch in the ON position.
OFF
ECO-THROTTLE SWITCH
CHOKE
ON
ENGINE SWITCH
5.Pull the starter grip lightly until you feel resistance; then pull briskly in the direction of the arrow as shown.
Do not allow the starter grip to snap back against the generator. Return it gently to prevent damage to the starter.
Direction to pull
STARTER GRIP
24
OPERATION
6.If the engine switch was turned to the CHOKE position to start the engine, turn it to the ON position as the engine warms up.
7.If you wish to use the Eco-Throttle system, turn the Eco-Throttle switch to the ON position after the engine has warmed up for 2 or 3 minutes.
ON CHOKE
ON
ECO-THROTTLE SWITCH
25
OPERATION
STOPPING THE ENGINE
To stop the engine in an emergency, simply turn the engine switch to the OFF position. Under normal conditions, use the following procedure.
1.Turn off or disconnect all appliances that are connected to the generator.
2.Turn the engine switch to the OFF position.
OFF 
ENGINE SWITCH
3.Allow the engine to cool, and then turn the fuel filler cap vent lever to the OFF position.
OFF
FUEL FILLER CAP VENT LEVER
26
OPERATION
4.If two generators were connected for parallel operation, disconnect the parallel operation cable after stopping the engines if you do not wish to resume parallel operation.
PARALLEL OPERATION CABLE (optional equipment)
27
OPERATION
AC OPERATION
Before connecting an appliance to the generator, make sure that the appliance is in good working order and that its electrical rating does not exceed that of the receptacle.
Most motorized appliances require more than their electrical rating for startup. When an electric motor is started, the overload indicator (red) may come on. This is normal if the overload indicator (red) goes off within 9 seconds. If the overload indicator (red) stays on, consult your generator dealer.
1.Start the engine (see page 23) and make sure the output indicator (green) comes on.
2.Plug an appliance into the appropriate receptacle.
3.Turn on the appliance.
OUTPUT INDICATOR
(GREEN)
OVERLOAD INDICATOR (RED)
PLUG
If the generator is overloaded (see page 29), or if there is a short circuit in a connected appliance, the overload indicator (red) will come on. If the overload indicator (red) stays on continuously for more than 4 seconds, current to the connected appliance(s) will shut off, and the output indicator (green) will go off. Stop the engine and investigate the problem.
Determine if the cause is a short circuit in a connected appliance or an overload. Correct the problem and restart the generator.
28
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