Yamaha EF1000iS User manual

Generator
LIT-19626-01-67
7CG-28199-14
PRINTED ON RECYCLED PAPER
PRINTED IN JAPAN
2011.04-0.5×1 !
(E)
EF1000iS
OWNER’S MANUAL
Read this manual carefully before operating this machine.
7CG-28199-14_hyoshi 11.4.18 10:14 Page 1

Read this manual carefully before operating this machine. This manual
should stay with this machine if it is sold.
7CG-28199-14_hyoshi 11.4.18 10:14 Page 2

AE00012
IDENTIFICATION NUMBER RECORDS
Record your Primary I.D., and serial num-
bers in the spaces provided, to assist you
in ordering spare parts from a Yamaha
dealer.
Also record and keep these I.D. numbers
in a separate place in case your machine
is stolen.
AE00011
MACHINE IDENTIFICATION
The machine serial number is stamped in
the location as shown.
TIP
The first three digits of these numbers are
for model identification; the remaining dig-
its are the unit production number. Keep a
record of these numbers for reference
when ordering parts from a Yamaha deal-
er.
AE00002
INTRODUCTION
Congratulations on your purchase of your new Yamaha.
This manual will provide you with a good basic understanding of the operation and
maintenance of this machine.
If you have any questions regarding the operation or maintenance of your machine,
please consult a Yamaha dealer.
PRI-I.D. NUMBER
PRI-I.D.
CODE SERIAL No.
EF1000iS
OWNER’S MANUAL
© 2011 by Yamaha Motor Corporation, U.S.A.
1st Edition, February 2011
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Corporation, U.S.A.
is expressly prohibited.
Printed in Japan.
P/N LIT-19626-01-67
MODEL
790-065b
7CG-24163-00
AE00022
7CG-28199-14 11.3.21 14:56 Page A-1

Particularly important information is distin-
guished in this manual by the following
notations.
This is the safety alert symbol. It is
used to alert you to potential personal
injury hazards. Obey all safety mes-
sages that follow this symbol to avoid
possible injury or death.
A WARNING indicates a hazardous sit-
uation which, if not avoided, could
result in death or serious injury.
A NOTICE indicates special precau-
tions that must be taken to avoid dam-
age to the machine or other property.
TIP
A TIP provides key information to make
procedures easier or clearer.
NOTICE
WARNING
AE00032
PLEASE READ AND UNDERSTAND
THIS MANUAL COMPLETELY BEFORE
OPERATING THE MACHINE.
TIP
9Yamaha continually seeks advance-
ments 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 engine and this manual. If there
is any question concerning this manu-
al, please consult a Yamaha dealer.
9This manual should be considered a
permanent part of this engine and
should remain with this engine when
resold.
* Product and specifications are subject to
change without notice.
WARNING
7CG-28199-14 11.3.21 14:56 Page A-2

AE00041
CONTENTS
SPARK PLUG INSPECTION .............24
CARBURETOR ADJUSTMENT.........25
ENGINE OIL REPLACEMENT ..........25
MUFFLER SCREEN AND SPARK
ARRESTER .......................................27
AIR FILTER........................................29
FUEL TANK FILTER..........................30
TROUBLESHOOTING..........................31
STORAGE.............................................33
DRAIN THE FUEL .............................33
ENGINE .............................................35
EXHAUST EMISSION CONTROL
SYSTEM AND COMPONENTS ............36
SPECIFICATIONS ................................37
DIMENSIONS ....................................37
ENGINE .............................................37
GENERATOR ....................................37
WIRING DIAGRAM...............................38
YAMAHA MOTOR CORPORATION,
U.S.A.
EF SERIES GENERATORS
3-YEAR LIMITED WARRANTY............39
YAMAHA OUTDOOR POWER
EQUIPMENT
CALIFORNIA EVAPORATIVE
EMISSION CONTROL
WARRANTY STATEMENT ..................42
YAMAHA MOTOR CORPORATION,
U.S.A.
SMALL OFF ROAD ENGINES
CALIFORNIA EMISSION
CONTROL WARRANTY.......................43
YAMAHA EXTENDED SERVICE
(Y.E.S.)..................................................47
LOCATION OF IMPORTANT
LABELS ..................................................1
SAFETY INFORMATION........................2
EXHAUST FUMES ARE
POISONOUS .......................................2
FUEL IS HIGHLY FLAMMABLE AND
POISONOUS .......................................3
ENGINE AND MUFFLER MAY
BE HOT................................................3
ELECTRIC SHOCK PREVENTION .....4
CONNECTION NOTES .......................5
CONNECTION.....................................5
EXTENSION CORD NOTES ...............5
DESCRIPTION........................................6
CONTROL PANEL...............................6
ENGINE SWITCH ................................7
OIL WARNING LIGHT (red).................7
ECONOMY CONTROL SWITCH.........7
DC PROTECTOR ................................8
FUEL TANK CAP AIR VENT KNOB ....8
FUEL COCK KNOB .............................9
PRE-OPERATION CHECK...................10
FUEL..................................................10
ENGINE OIL ......................................12
GROUND (earth) TERMINAL ............12
OPERATION .........................................13
STARTING THE ENGINE..................13
APPLICATION RANGE .....................15
CONNECTION...................................16
OVERLOAD INDICATOR LIGHT
(red) ..................................................17
BATTERY CHARGING ......................18
STOPPING THE ENGINE .................21
PERIODIC MAINTENANCE .................22
MAINTENANCE CHART ...................22
7CG-28199-14 11.3.21 14:56 Page A-3

– 1 –
4583 2
671
HOT EXHAUST
7VV-28176-10
AE00062
LOCATION OF IMPORTANT LABELS
Please read the following labels carefully before oper-
ating this generator.
TIP
Maintain or replace safety and instruction labels, as
necessary.
WARNING
q
7CG-24162-10
Read the owner’s manual and all labels before operating.
8
Only operate in well-ventilated areas.
Exhaust gas contains poisonous carbon monoxide.
8
Check for spilled fuel or fuel leaks.
8
Stop engine before refueling.
8
Do not operate near flammable materials.
8
Electrocution can occur if generator is used in rain, snow,
or near water. Keep this unit dry at all times.
8
Electrocution or property damage can occur:
Do not connect this generator to any building’s electrical
system unless an isolation switch has been installed by a
licensed electrician. Refer to the owner’s manual.
8
When operating the generator:
Never place a partition or other barrier around the generator.
Do not cover the generator with a box.
Do not place any objects on the generator.
8
26
The air index of this engine is 3
(California only)
MOST CLEAN LEAST CLEAN
0246810
Note: The lower the air index, the less the pollution.
This engine is certified to be emissions compliant
for the following use:
Check owner's manual for further details.
( *** HOURS) ( *** HOURS) ( *** HOURS)
MODERATE INTERMEDIATE EXTENDED
X
EMISSION CONTROL INFORMATION
YAMAHA MOTOR POWERED PRODUCTS CO.,LTD.
emission regulations for small off-road engines.
This engine meets 20** California exhaust and evaporative
THIS ENGINE MEETS U.S. EPA EXH EVP REGS FOR 20**.
EVAP F: ********
EF: ***********
EMISSION CONTROL SYSTEM: **
DISPLACEMENT: *** cc
EMISSION COMPLIANCE PERIOD : *** HOURS
This engine is certified to operate on unleaded gasoline.
No other adjustments needed.
ENGINE OIL: SAE***** TYPE : **
5
4
OIL
EF1000is
AC output 60Hz
Rated 900VA
120V
Phase Single
DC output 12V 8A
Fuel Gasoline
YAMAHA MOTOR POWERED PRODUCTS CO.,LTD.
MADE IN JAPAN
7VV-24164-11
3
STARTING INSTRUCTION
8Disconnect all
electrical devices.
Turn ECON. switch to OFF
Open fuel cap vent
Turn fuel knob ON
Turn engine switch to ON
Pull choke knob out
Pull recoil starter
Push choke knob in
8
8
8
8
8
8
8
7CG-25134-10
7
1
DANGER
Using a generator indoors CAN KILL YOU IN MINUTES.
Generator exhaust contains carbon monoxide.
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,
door, and vents.
NOTICE
Use the specified spark plug only.
Specified plug:CR4HSB(NGK)
8
7CG-28199-14 11.3.21 14:56 Page 1

–2 –
AE00071
SAFETY INFORMATION
9This generator is not designed for on-board use.
Do not use it while installed on the vehicle.
9Do not modify the generator or use it with its parts
removed.
9Do not allow children to operate the generator.
741-077
1
9Be sure to carry the generator only by its carrying
handle.
1Carrying handle
9Do not place any obstacles on the generator.
741-080
AE00072
EXHAUST FUMES ARE POISONOUS
9Never operate the engine in a closed area or it
may cause unconsciousness and death within a
short time. Operate the engine in a well ventilated
area.
7CG-28199-14 11.3.21 14:56 Page 2

–3 –
AE01018
FUEL IS HIGHLY FLAMMABLE AND POISONOUS
9Always turn off the engine when refuelling.
9Never refuel while smoking or in the vicinity of an
open flame.
9Take care not to spill any fuel on the engine or
muffler when refuelling.
9Do not leave the generator inside the vehicle or in
the trunk.
9If you swallow any fuel, inhale fuel vapor, or allow
any to get in your eye(s), see your doctor immedi-
ately. If any fuel spills on your skin or clothing,
immediately wash with soap and water and
change your clothes.
9When operating or transporting the generator, be
sure it is kept upright. If it tilts, fuel may leak from
the carburetor or fuel tank.
Also, be sure the fuel tank cap air vent knob is
tightened when transporting the generator.
741-081
741-082
741-083
741-084
741-085
AE01019
ENGINE AND MUFFLER MAY BE HOT
9Place the generator in a place where pedestrians
or children are not likely to touch the generator.
9Avoid placing any flammable materials near the
exhaust outlet during operation.
741-086
a
9Keep the generator at least 1 m (3 ft) from build-
ings or other equipment, or the engine may over-
heat.
a1 m (3 ft)
7CG-28199-14 11.3.21 14:56 Page 3

–4 –
741-088
741-089
AE01020
ELECTRIC SHOCK PREVENTION
9Never operate the engine in rain or snow.
9Do not operate the engine with a dust cover or
other objects covering it.
9When covering the generator, be sure to do so
only after the engine and muffler have completely
cooled down.
9Never touch the generator with wet hands or elec-
trical shock will occur.
741-087
1
9Connect the ground lead of the generator to the
ground terminal and connect the end to the
ground electrode buried in the ground.
1Ground (earth) terminal
7CG-28199-14 11.3.21 14:56 Page 4

–5 –
1
2
1
2
741-090
AE00088
CONNECTION NOTES
9Avoid connecting the generator to commercial
power outlet.
9Avoid connecting the generator in parallel with any
other generator.
1Correct
2Incorrect
AE00091
CONNECTION
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
AE00086
EXTENSION CORD NOTES
9Extension cords should be protected by a tough
flexible rubber sheath (IEC 245) or the equivalent
to withstand mechanical stresses.
7CG-28199-14 11.3.21 14:56 Page 5

–6 –
793-104a
1
6
34
7
8
5
2
9
1
793-105a
w
0
2
q
3
5
AE00101
DESCRIPTION
1234
q09 8 7 793-106a
56
AE00103
CONTROL PANEL
1Overload indicator light
2AC pilot light
3Oil warning light
4Engine switch
5Choke knob
6Fuel cock knob
7Ground (earth) terminal
8Economy control switch
9DC protector
0AC receptacle
qDC receptacle
1Fuel tank
2Fuel tank cap
3Fuel tank cap air vent knob
4Spark plug
5Carrying handle
6Fuel cock knob
7Choke knob
8Ground (earth) terminal
9Recoil starter
0Air filter cover
qOil filler cap
wMuffler
7CG-28199-14 11.3.21 14:56 Page 6

AE00111
OIL WARNING LIGHT (red)
When the oil level falls below the lower level, the oil
warning light (red) comes on and then the engine
stops automatically. Unless you refill with oil, the
engine will not start again.
TIP
If the engine stalls or does not start, turn the engine
switch to “ON”and then pull the recoil starter. If the oil
warning light flickers for a few seconds, the engine oil
is insufficient. Add oil and restart.
–7 –
763-221
1
2
700-115
763-220
1
2
AE00939
ENGINE SWITCH
The engine switch controls the ignition system.
17“ON”
Ignition circuit is switched on.
The engine can be started.
25“STOP”
Ignition circuit is switched off.
The engine will not run.
AE00988
ECONOMY CONTROL SWITCH
1I “ON”
When the economy control switch is turned to “ON”,
the economy control unit controls the engine speed
according to the connected load. The results are better
fuel consumption and less noise.
23“OFF”
When the economy control switch is turned to “OFF”,
the engine runs at the rated r/min (5,000 r/min) regard-
less of whether there is a load connected or not.
7CG-28199-14 11.3.21 14:56 Page 7

–8 –
TIP
The economy control switch must be turned to “OFF”
when using electric devices that require a large start-
ing current, such as a compressor or a submersible
pump.
AE01099
DC PROTECTOR
The DC protector turns “OFF”automatically when
electric device being connected to the generator is
operating and current above the rated flows. To use
this equipment again, turn on the DC protector by
pressing its button to “RESET”.
1I“RESET”
Direct current is output. (This is the default position.)
23“OFF”
Direct current is not output.
Reduce the load of the connected electric device
below the specified rated output of the generator if
the DC protector turns off. If the DC protector
turns off again, stop using the device immediately
and consult a Yamaha dealer.
NOTICE
763-224a
763-238a
1
2
707-096
2
1
AE01021
FUEL TANK CAP AIR VENT KNOB
The fuel tank cap is provided with an air vent knob to
stop fuel flow.
The air vent knob must be turned 1 turn counterclock-
wise from the tightened position. This will allow fuel to
flow to the carburetor and the engine to run.
When the engine is not in use, tighten the air vent
knob clockwise until it is finger-tight to stop fuel flow.
1Air vent knob
2Fuel tank cap
7CG-28199-14 11.3.21 14:56 Page 8

–9 –
763-227
12
3
707-098
OFF
ON
54
AE01034
FUEL COCK KNOB
The fuel cock knob is used to supply fuel from the fuel
tank to the carburetor.
1Fuel cock knob
2“ON”
With the knob in this position, fuel flows to the carbure-
tor. Normal using is done with the knob in this position.
3“OFF”
With the knob in this position, fuel will not flow. Always
turn the knob to this position when the engine is not
running.
TIP
If for some reason the fuel cock knob cannot be
turned, use the fuel cock lever inside the cover to sup-
ply fuel.
4Fuel cock lever
5Cover
7CG-28199-14 11.3.21 14:56 Page 9

741-091
AE00845
PRE-OPERATION CHECK
Pre-operation checks should be made each time the
generator is used.
The engine and muffler will be very hot after the
engine has been run.
Avoid touching the engine and muffler while they
are still hot with any part of your body or clothing
during inspection or repair.
AE00212
FUEL
Make sure there is sufficient fuel in the tank.
Your Yamaha engine has been designed to use regu-
lar unleaded gasoline with a pump octane number ((R
+ M)/2) of 86 or higher, or research octane number of
91 or higher.
WARNING
–10 –
707-091
Recommended fuel:
Unleaded gasoline
Fuel tank capacity:
Total: 2.5 L (0.66 US gal, 0.55 Imp gal)
7CG-28199-14 11.3.21 14:56 Page 10

–11 –
707-095
9Fuel is highly flammable and poisonous.
Check “SAFETY INFORMATION”(See page 3)
carefully before refueling.
9Do not fill above the “LEVEL”mark (red) in the
fuel filter or it may overflow when the fuel
heats up later and expands.
9After refueling, make sure the tank cap is tight-
ened securely.
1“LEVEL”mark (red)
9Immediately wipe off spilled fuel with a clean,
dry, soft cloth, since fuel may deteriorate
painted surfaces or plastic parts.
9Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts.
NOTICE
WARNING
707-092
1
7CG-28199-14 11.3.21 14:56 Page 11

700-116
700-119
1
1
AE01158
ENGINE OIL
Make sure the engine oil is at the upper level of the oil
filler hole. Add oil as necessary.
TIP
Place the generator on a level surface and check the
oil level of the oil filler hole.
1Upper level
2Oil filler guide
9The generator has been shipped without
engine oil. Do not start the engine until you
have filled it with the sufficient engine oil.
9Do not tilt the generator when adding engine
oil. This could result in overfilling and damage
to the engine.
NOTICE
–12 –
0°C
åYAMALUBE 4 (10W-40)
∂SAE 10W çSAE #20 ∫SAE #30
32°F
25°C
80°F
700-126
2
AE00241
GROUND (earth) TERMINAL
Make sure to ground (earth) terminal the generator.
Check “SAFETY INFORMATION”(see page 4).
1Ground (earth) terminal
Recommended engine oil:
åYAMALUBE 4 (10W-40),
SAE 10W-30 or 10W-40
∫SAE #30
çSAE #20
∂SAE 10W
Recommended engine oil grade:
API Service SE type or higher
Engine oil quantity:
0.32 L (0.34 US qt, 0.28 lmp qt)
7CG-28199-14 11.3.21 14:56 Page 12

–13 –
AE01109
OPERATION
9Never operate the engine in a closed area or it
may cause unconsciousness and death within
a short time. Operate the engine in a well ven-
tilated area.
9Before starting the engine, do not connect any
electric devices.
9Clean dusts, dirt or water off the receptacle
before use.
9The generator has been shipped without
engine oil. Do not start the engine until you
have filled it with the sufficient engine oil.
9Do not tilt the generator when adding engine
oil. This could result in overfilling and damage
to the engine.
1Upper level
NOTICE
WARNING
AE01104
STARTING THE ENGINE
1. Turn the economy control switch to “OFF”.
13“OFF”
3. Turn the fuel cock knob to“ON”.
1“ON”
2. While holding the fuel tank cap so that it will not
move, turn the air vent knob 1 turn counterclock-
wise to open the fuel tank air vent.
1Air vent knob
700-127
1
705-071c
1
ON
OFF
761-078
763-222
1
707-097
1
7CG-28199-14 11.3.21 14:56 Page 13

–14 –
4. Turn the engine switch to “ON”.
17“ON”
763-223
1
5. Pull the choke knob fully out.
1Choke knob
TIP
The choke is not required to start a warm engine.
Push the choke knob in to the original position.
6. Pull slowly on the recoil starter until it is engaged,
then pull it briskly.
TIP
Grasp the carrying handle firmly to prevent the gener-
ator from falling over when pulling the recoil starter.
7. After the engine starts, warm up the engine until
the engine does not stop when the choke knob is
returned to the original position.
8. Push the choke knob back to the original position.
TIP
When starting the engine, with the economy control
switch “ON”, and there is no load on the generator:
9in ambient temperature below 3°C (37°F), the
engine will run at the rated r/min (5,000 r/min) for
5 minutes to warm up the engine.
9in ambient temperature above 3°C (37°F), the
engine will run at the 4,000 r/min for 3 minutes to
warm up the engine.
The economy control unit operates normally after the
above time period, while the economy control switch is
“ON”.
701-049c
704-017
701-049b
1
7CG-28199-14 11.3.21 14:56 Page 14

TIP
9“–” means below.
9Application wattage indicates when each device is
used by itself.
9The simultaneous usage of AC and DC power is
possible but total wattage should not exceed the
rated output.
EX:
9The overload indicator light comes on when total
wattage exceeds the application range. (See page
17 for more details.)
1Overload indicator light
–15 –
AE01000
APPLICATION RANGE
763-225
1
Generator rated output 900VA
Frequency Power factor
1.0 –800W
AC 0.8 –620W
96W
DC —(12V/8A)
9Do not overload. The total load of all electrical appliances must not exceed
the supply range of the generator. Overloading will damage the generator.
9When supplying precision equipment, electronic controllers, PCs, electronic
computers, microcomputer-based equipment or battery chargers, keep the
generator a sufficient distance away to prevent electrical interference from
the engine. Also ensure that electrical noise from the engine does not inter-
fere with any other electrical devices located near the generator.
9If the generator is to supply medical equipment, advice should first be
obtained from the manufacturer, a medical professional or hospital.
9Some electrical appliances or general-purpose electric motors have high
starting currents, and cannot therefore be used, even if they lie within the
supply ranges given in the above table. Consult the equipment manufacturer
for further advice.
NOTICE
DC
AC
Power factor 1 0.8–0.95 0.4–0.75
(Efficiency 0.85)
EF1000iS –900W –720W –300W
Rated voltage
12V
Rated current
8A
7CG-28199-14 11.3.21 14:56 Page 15