Yamaha EF2200iS User manual

OWNER’S MANUAL
Read this manual carefully before
operating your Yamaha generator.
LIT-19626-02-81
Printed in China
2021.03×1 !
(E)
EF2200iS
7PC-F8199-12
7PC-F8199-12_cover.indd 1-2 2021/03/18 13:42:41

Cover2
Read this manual carefully before operating your Yamaha generator. This man-
ual should stay with this generator if it is sold.
7PC-F8199-12_cover.indd 3-4 2021/03/18 13:42:41

Introduction
Congratulations on your purchase of your new Yamaha Generator.
This manual will provide you with a good basic understanding of the operation and main-
tenance of this generator.
If you have any questions regarding the operation or maintenance of your generator,
please consult a Yamaha dealer.
TIP
• Yamaha continually seeks advancements in product design and quality.
Therefore, while this manual contains the most current product information available at
the time of printing, there may be minor discrepancies between your generator and this
manual. If there is any question concerning this manual, please consult a Yamaha
dealer.
• This manual should be considered a permanent part of this generator and should
remain with this generator when resold.
* Product and specifications are subject to change without notice.
PLEASE READ AND UNDERSTAND THIS MANUAL COMPLETELY BEFORE OPER-
ATING THE GENERATOR.
WARNING
EF2200iS
OWNER’S MANUAL
©2021 by Yamaha Motor Corporation, U.S.A.
1st Edition, March 2021
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Corporation, U.S.A.
is expressly prohibited.
Printed in China
P/N LIT-19626-02-81
7PC-F8199-12.book 1 ページ ２０２１年３月１６日 火曜日 午後４時４６分

Important Manual Information
Particularly important information is distinguished in this manual by the following nota-
tions.
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury
or death.
A WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
A NOTICE indicates special precautions that must be taken to avoid damage to the
generator or other property.
A TIP provides key information to make procedures easier or clearer.
WARNING
NOTICE
TIP
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Contents
Safety Information ................. 1-1
General Safety Information .............. 1-1
Exhaust Fumes are Poisonous ........ 1-1
Carbon Monoxide Poisoning ............ 1-1
Fuel is Highly Flammable and 
Poisonous ........................................ 1-2
Engine and Muffler May be Hot........ 1-2
Electric Shock Prevention ................ 1-2
Connection Notes............................. 1-3
Connection ....................................... 1-3
Extension Cord Notes ...................... 1-3
Location of Important Labels............ 1-4
Controls and Features .......... 2-1
Description ....................................... 2-1
Control Function............................... 2-5
Engine Switch ............................... 2-5
Oil Level Warning Light (Red)....... 2-5
CO SENSOR ................................ 2-5
AC Switch (N.F.B.)........................ 2-9
Fuel Tank Cap .............................. 2-9
Ground (Earth) Terminal............... 2-9
Economy Control Switch............... 2-9
Power Supply Display................. 2-10
Overload Indicator Light (Red).... 2-10
Reset Button ............................... 2-11
Fuel Tank Cap Air Vent Lever .... 2-11
Fuel Level Gauge ....................... 2-11
Hour Meter.................................. 2-11
Boost Mode Switch ..................... 2-12
Twin Tech (Parallel Running 
Terminal)..................................... 2-12
Accessory Socket ....................... 2-13
AC Receptacle............................ 2-13
Carburetor Fuel Drain Cock........ 2-14
Recoil Starter .............................. 2-14
Before Operation ................... 3-1
Preparation....................................... 3-1
Fuel............................................... 3-1
Engine Oil ..................................... 3-2
Pre-Operation Check ....................... 3-4
Operation................................ 4-1
Precautions For Use ........................ 4-1
Starting The Engine ......................... 4-1
Stopping The Engine ....................... 4-3
Connecting Devices Via Alternating
Current (AC) Receptacles................ 4-4
Connecting Devices Via The 
Accessory Socket ............................ 4-6
Application Range............................ 4-7
High Altitude Operation.................... 4-8
Periodic Maintenance............ 5-1
The Importance of Maintenance ...... 5-1
Check Before Use............................ 5-1
Maintenance Chart........................... 5-1
Engine Oil Replacement .................. 5-3
Spark Plug Inspection ...................... 5-5
Air Filter Cleaning ............................ 5-7
Muffler Screen and Spark Arrester
Cleaning........................................... 5-9
Fuel Tank Strainer Cleaning .......... 5-12
Carburetor Adjustment................... 5-12
Storage ................................... 6-1
Drain The Fuel ................................. 6-1
Engine.............................................. 6-3
Trouble Recovery .................. 7-1
Troubleshooting ............................... 7-1
Specifications ........................8-1
EF2200iS ......................................... 8-1
Consumer Information .......... 9-1
Generator Identification.................... 9-1
Identification Number Records......... 9-1
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Contents
Exhaust Emission Control
System and Components ... 10-1
Wiring Diagram.................... 11-1
Yamaha Extended Service
(Y.E.S.).................................. 12-1
Index..................................... 13-1
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1-1
1
2
3
4
5
6
7
8
9
10
11
12
Safety Information
General Safety Information
• This generator is not designed for on-board use.
Do not use it while installed on the vehicle.
• Do not modify the generator or use it with its parts
removed.
• Do not allow children to operate the generator.
• Do not place any obstacles on the generator.
Exhaust Fumes are Poisonous
• Using a generator indoors CAN KILL YOU IN MIN-
UTES. Generator exhaust contains carbon monox-
ide. This is a poison you cannot see or smell.
• NEVER use inside a home or garage, EVEN IF
doors and windows are open.
• Only use OUTSIDE and far away from windows,
doors, and vents with engine exhaust directed away
from any structures.
Carbon Monoxide Poisoning
• CO gas is toxic and can cause serious injury or
death.
• Get fresh air and seek medical care immediately, if
you are suspected to be inhaled carbon monoxide.
• Early symptoms of carbon monoxide exposure
include headache, fatigue, shortness of breath, nau-
sea, and dizziness and so on. Continued exposure to
carbon monoxide can cause loss of muscular coordi-
nation, loss of consciousness, and then result in
death.
• This generator is equipped with the CO SENSOR
system that automatically stops the engine before
the surrounding carbon monoxide concentration
increases to a dangerous concentration.
• Do not remove or modify the CO SENSOR system.
• Make sure that the CO SENSOR system works cor-
rectly.
• The CO SENSOR cannot prevent all danger associ-
ated with or caused by carbon monoxide. Pay careful
attention to the location of the generator.
• If the CO SENSOR stopped the generator, relocate
the generator and address symptoms of carbon
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1-2
Safety Information
monoxide poisoning prior to restart the generator.
• Install battery-operated or plug-in carbon monoxide
alarms to alert you to potentially dangerous levels of
carbon monoxide in accordance with the alarm’s
instructions.
Fuel is Highly Flammable and Poison-
ous
• Always turn off the engine when refuelling.
• Never refuel while smoking or in the vicinity of an
open flame.
• Take care not to spill any fuel on the engine or muf-
fler when refueling.
• Do not leave the generator inside the vehicle or in the
trunk.
• If you swallow any fuel, inhale fuel vapor, or allow any
to get in your eye(s), see your doctor immediately. If
any fuel spills on your skin or clothing, immediately
wash with soap and water and change your clothes.
• When operating or transporting the generator, be
sure it is kept upright. If it tilts, fuel may leak from the
carburetor or fuel tank.
Engine and Muffler May be Hot
• Place the generator in a place where pedestrians or
children are not likely to touch the generator.
• Avoid placing any flammable materials near the
exhaust outlet during operation.
• In order to prevent overheating, ensure adequate air-
flow by keeping the generator at least 1 m (3 ft) from
objects or other equipment.
• Do not operate the engine with a dust cover or other
objects covering it.
• When covering the generator, be sure to do so only
after the engine and muffler have completely cooled
down.
Electric Shock Prevention
• Never operate the engine in rain or snow.
• Never touch the generator with wet hands or electri-
cal shock will occur.
• When the connected electric device is grounded
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1-3
Safety Information
(earthed), always ground (earth) the generator.
• Connect the ground (earth) terminal to a ground
source. In order to prevent electrical shock, the gen-
erator must be grounded when using an electrical
device with a ground plug.
Connection Notes
• Avoid connecting the generator to commercial power
outlet.
• Avoid connecting the generator in parallel with any
other generator.
Connection
Extension Cord Notes
Extension cords should be protected by a tough flexible
rubber sheath (IEC 245) or the equivalent to withstand
mechanical stresses.
1
1. Ground (earth) terminal
1
2
1
2
1. Correct
2. Incorrect
Before the generator can be connected to a build-
ing’s electrical system, a licensed electrician must
install an isolation (transfer) switch in the build-
ing’s main fuse box. The switch is the connection
point for generator power and allows selection of
generator or main line power to the building. This
will prevent the generator from charging the main
power line (backfeeding) when the main power
supply has failed or has been turned off for line
repair. Backfeeding can electrocute or injure line
maintenance personnel. Also, generator and build-
ing electrical system damage can occur when nor-
mal operating power returns if unit is used without
an isolation switch.
WARNING
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1-4
Safety Information
Location of Important Labels
Please read the following labels carefully before operating this generator.
TIP
Maintain or replace safety and instruction labels, as necessary.
6
7
8
9
10
11
1
2
4
3
5
1
2
3
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1-5
Safety Information
****
************
************ ************
4
5
6
7
8
9
10
11
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2-1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Controls and Features
Description
1 Carrying handle 6 Choke knob
2 Fuel tank cap air vent lever (p. 2-11) 7 Recoil starter (p. 2-14)
3 Fuel tank cap (p. 2-9) 8 Fuel level gauge (p. 2-11)
4 Control panel 9 Muffler (p. 5-9)
5 Engine switch (p. 2-5) 10 Carburetor fuel drain cock (p. 2-14)
1
3
4
5
6
7
2
8
9
10
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2-2
Controls and Features
Control Panel
1 Accessory socket (p. 2-13) 6 ERR (Error) indicator light (Orange) (p. 2-5)
2 Economy control switch (p. 2-9) 7 Twin Tech (parallel running terminal) 
(p. 2-12)
3 Multi-function LED meter 8 Ground (earth) terminal (p. 2-9)
4Boost mode switch/Reset button 
(p. 2-12/p. 2-11) 9 AC receptacle (p. 2-13)
5 WARNING indicator light (Red) (p. 2-5) 10 AC switch (N.F.B.) (p. 2-9)
4
1
234 65
8
7
9910
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2-3
Controls and Features
Multi-Function LED Meter
1 Oil level warning light (Red) (p. 2-5) 3 Overload indicator light (Red) (p. 2-10)
2 Output indicator (Green) (p. 2-10)
23 1
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2-4
Controls and Features
This generator has an integrated multi-function LED meter. Its functions are described as
below.
Function Display Description Page
Power supply meter
Output indicator(s) come on
according to the current power
supply.
2-10
Operating time meter
Output indicator(s) flash ac-
cording to the accumulated
operation time.
2-11
Overload warning
Overload indicator light comes
on after output indicators
come on, when an overload or
some malfunctions of connect-
ed devices are detected.
2-10
Oil warning
Oil level warning light flashes
when the engine oil level is too
low.
2-5
Boost mode
Output indicators come on
consecutively when the gener-
ator is in boost mode.
2-12
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2-5
Controls and Features
Control Function
Engine Switch
The engine switch controls the ignition system and the
fuel cock.
TIP
The engine switch of this generator opens and closes
the fuel cock simultaneously. You don’t need to operate
the fuel cock separately.
“” (RUN)
Ignition circuit is switched on, and the fuel cock opens.
The engine can be started.
“” (STOP)
Ignition circuit is switched off, and the fuel cock closes.
The engine will not run.
Oil Level Warning Light (Red)
When the oil level falls below the lower level, the oil
level warning light flashes and then the engine stops
automatically. If the light flashes, stop the engine imme-
diately, and add engine oil up to the specified level.
Unless you refill with oil, the engine will not start again.
TIP
If the oil level warning light flashes even though the
engine oil level is sufficient, make sure to place the
generator horizontally.
CO SENSOR
The CO SENSOR is a system that automatically stops
the engine before the surrounding CO concentration
exceeds a certain level.
13
2
1. Engine switch
2. “”(RUN)
3. “”(STOP)
1
1. Oil level warning light (Red)
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2-6
Controls and Features
There are two indicator lights in relation to the CO
SENSOR.
WARNING indicator light (Red)
If the CO SENSOR detects a high carbon monoxide
concentration, the engine will stop and the WARNING
indicator light will flash for approximately 5 minutes.
If the engine is stopped by the CO SENSOR system,
change the operating location of the generator to well-
ventilated area.
TIP
• Place the generator so that the muffler is pointed in
the same direction as the wind is blowing, and the
exhaust gas is directed away from buildings, other
structures, or vehicles.
• Avoid placing the generator near devices that emit
carbon monoxide, such as other generators.
• When operating generators in parallel (Twin Tech)
• Do not remove or modify the CO SENSOR sys-
tem.
•The CO SENSOR cannot prevent all danger asso-
ciated with or caused by carbon monoxide. Pay
careful attention to the location of the generator.
• Do not spray any organic solvent on the CO SEN-
SOR.
WARNING
12
1. WARNING indicator light (Red)
2. ERR (Error) indicator light (Orange)
Continuous use of the generator in areas with high
concentrations of carbon monoxide can cause
serious health hazards due to carbon monoxide
poisoning. If you are in the same area as the gener-
ator, evacuate the area immediately. Get fresh air
and seek medical attention immediately, if you feel
sick or suspect you have inhaled carbon monox-
ide. Ventilate the area or space where the generator
is located.
WARNING
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2-7
Controls and Features
operation, place the generators so that the exhaust
from one generator is not directed to the other.
While this indicator light is flashing and the CO SEN-
SOR is activated, the engine cannot be restarted for
approximately 5 minutes. Restarting the generator is
possible only after the WARNING indicator light is
turned off.
ERR (Error) indicator light (Orange)
If the CO SENSOR detects a system malfunction or
service life over, the engine will stop automatically and
the ERR (Error) indicator will come on approximately 5
minutes.
TIP
• The CO SENSOR has a limited service life and must
be replaced when it no longer functions. The battery
is non-replaceable battery.
• The generator stopping period and storage period
are also in the useful service life of the CO SENSOR.
• The lithium battery adopted on this sensor contains
perchlorate, a toxic substance controlled in perchlo-
rate Best Management Practices (BMP) regulations
passed by the California legislature. When you dis-
card the lithium battery in California, USA, please fol-
low the related regulations in advance.
Perchlorate material-special handling may apply, see
www.dtsc.ca.gov/hazardouswaste/perchlorate
• Consult a Yamaha dealer for the CO SENSOR
replacement.
• Do not operate the generator in an enclosed or
partly enclosed area such as a garage.
• Do not enclose or cover the generator with
boards or a tent, even if it is outside and away
from of a building.
WARNING
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2-8
Controls and Features
On starting the engine
Each indicator light flashes 5 times upon starting.
When starting the engine, make sure that each indica-
tor light flashes 5 times.
TIP
If the indicator lights come on or flash abnormally, refer
to the “Troubleshooting”. (See page 7-1)
• If the indicator lights do not flash 5 times upon
starting, discontinue generator use immediately
and consult a Yamaha dealer. The CO SENSOR
system may be malfunctioning.
• If the CO SENSOR WARNING indicator light (red)
is flashing, immediately clear the area of all peo-
ple and animals while moving the generator to an
open, outdoor area. Once the generator is relo-
cated to a well-ventilated area, it can be restarted
after 5 minutes. Be sure to point the exhaust
away from people and buildings. Thoroughly
ventilate the location where the generator had
stopped.
• If the CO SENSOR system is malfunctioning, it
cannot warn you of potential high concentrations
of carbon monoxide. Move the generator to a
well-ventilated location and consult a Yamaha
dealer.
• While the CO SENSOR is activated, the engine
cannot be restarted for approximately 5 minutes.
Relocate the generator and address symptoms
of carbon monoxide poisoning prior to restart
the generator.
If you stop the engine in the following situations,
the CO SENSOR system may not be able to restart
the engine immediately. Wait approximately 15 sec-
onds before restarting the engine.
• By the engine switch.
• By the oil level warning device.
• By running out of gasoline.
WARNING
NOTICE
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2-9
Controls and Features
AC Switch (N.F.B.)
The AC switch (Non-Fuse Breaker) turns off automati-
cally when the load exceeds the generator AC rated
output.
Fuel Tank Cap
Remove the fuel tank cap by turning it counterclock-
wise.
Ground (Earth) Terminal
Ground (earth) terminal connects the earth line for pre-
vention of electric shock.
When the electric device is grounded, be sure to
ground the generator, too.
For the grounding, consult a Yamaha dealer.
Economy Control Switch
In order to reduce fuel consumption and operating
noise, use the economy control switch.
“” (ON)
When the economy control switch is turned to “ ” (ON),
the economy control unit regulates the engine speed
according to the connected load. The results are better
fuel consumption and less noise.
“” (OFF)
When the economy control switch is turned to “ ”
1
1. AC switch (N.F.B.)
Reduce the load to the specified generator AC
rated output if the AC switch (N.F.B.) turns off. If it
turns off again, consult a Yamaha dealer.
NOTICE
OFF
ON
1
FE
FE
1. Fuel tank cap
1
1. Ground (earth) terminal
123
1. Economy control switch
2. “”(ON)
3. “”(OFF)
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