Yamaha Ef2000is 2 Manual

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4
6 2
5
WARNINGq
8Read the owner’s manual and all labels before operating.8Only operate in well-ventilated areas. Exhaust gas contains poisonous carbon monoxide.
8Check for spilled fuel or fuel leaks.
8Stop engine before refueling.
8Do not operate near flammable materials.
8Electrocution can occur if generator is used in rain, snow, or near water. Keep this unit dry at all times.
8Electrocution 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.
8When 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.
7DK-24162-10
The air index of this engine is 3(California only)
MOST CLEAN LEAST CLEAN0246810
Note: The lower the air index, the less the pollution.This engine is certified to be emissions compliantfor the following use:
Check owners manual for further details.(  *** HOURS) (  *** HOURS) (  *** HOURS)MODERATE INTERMEDIATE EXTENDEDX
EMISSION CONTROL INFORMATIONYAMAHA MOTOR POWERED PRODUCTS CO., LTD.
emission regulations for small off-road engines. This engine meets  20**  California exhaust and evaporativeTHIS ENGINE MEETS U.S. EPA EXHEVP 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 : **
HOT  EXHAUST7WL-28176-10
3
NOTICE
Use the specified spark plug only.
Specified plug:BPR6HS(NGK)
7DK-24164-10
OILEF2000IS
YAMAHA MOTOR POWERED PRODUCTS CO.,LTD.MADE IN JAPAN
AC output          60Hz
      Rated          1.6kVA
                         
 120V
      Phase          Single
DC output         12V 8A
Fuel                   Gasoline
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1
2
3
4
7DK-015
DESCRIPTION
1Carrying handle
2Fuel tank cap air vent knob
3Fuel tank cap
4Recoil starter
5Fuel gauge
6Muffler
7Oil filler cap
AE00103
Control panel
1Oil warning light
2AC pilot light
3Overload indicator light
4Economy control switch
(Black)
5Engine switch (Red)
6Fuel cock knob
7Choke knob
8Twin Tech (parallel running
terminal)
9AC receptacle
0DC protector (breaker)
qGround (earth) terminal
wDC receptacle
123 45
6
7
8
9
0 q w
7DK-017



7DK-016
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12
7DK-018
700-115
AE00111
Oil warning light (Red)
When the oil level falls below the lower level, the oil
warning light comes on and then the engine stops auto-
matically. 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.
AE00101
CONTROL FUNCTION
AE00121
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.
DC protector
The DC protector turns off 2automatically when elec-
tric device being connected to the generator is operat-
ing and current above the rated flows. To use this equip-
ment again, turn on the DC protector by pressing its
button to “ON”1.
1
27DK-052
1“ON”
Direct current is output. (This is the default position.)
2“OFF”
Direct current is not output.
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AE00142
Economy control switch
1I  “ON”
When the economy control switch is turned to “ON”1,
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”2,
the engine runs at the rated r/min (4,500 r/min) regard-
less of whether is a load connected or not.
TIP
The economy control switch must be turned to “OFF”2
when using electric devices that require a large starting
current, such as a compressor of a submersible pump.
AC pilot light (Green)
The AC pilot light 1comes on when the engine starts
and produces power.
12
7DK-020
1
7DK-048
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
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AE01087
Overload indicator light (Red)
The overload indicator light 1comes on when an over-
load of a connected electrical device is detected, the
inverter control unit overheats, or the AC output voltage
rises. Then, the AC protector will trip, stopping power
generation in order to protect the generator and any
connected electric devices. The AC pilot light (Green)
will go off and the overload indicator light (Red) will stay
on, but the engine will not stop running.
When the overload indicator light comes on and power
generation stops, proceed as follows:
1. Turn off any connected electric devices and stop
the engine.
2. Reduce the total wattage of connected electric
devices within the rated output.
3. Check for blockages in the cooling air inlet and
around the control unit. If any blockages are found,
remove them.
4. After checking, restart the engine.
TIP
The overload indicator light may come on for a few sec-
onds at first when using electric devices that require a
large starting current, such as a compressor or a sub-
mersible pump. However, this is not a malfunction.
1
7DK-021
7DK-022
Fuel tank cap
Remove the fuel tank cap by turning it counterclock-
wise.
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12
7DK-023
2 1
7DK-024
1
7DK-011
Fuel cock knob
The fuel cock supplies fuel from the fuel tank to the car-
buretor.
The fuel cock has two positions.
1“ON”
With the knob in this position, fuel flows to the carbure-
tor. Normal using is done with the knob in this position.
2“OFF”
With the knob in this position, fuel will not flow. Always
turn the knob to this position when the engine is not
running.
Ground (earth) terminal
Ground (earth) terminal 1connects the earth line for
prevention of electric shock.
When the electric device is grounded, be sure to
ground the generator also.
7DK-042a
Twin Tech
(Terminal for Connecting special cables for
parallel running)
This is the terminal for connecting special cables for
parallel running of two EF2000iS. The parallel running
requires two EF2000iS and the special cables. (The
rated output in parallel running is 3.0 kVA and the rated
current is 25.0 A.)
The handling, operation procedure and the notes on
usage are described in the PARALLEL RUNNING KIT
OWNER’S MANUAL included in the Parallel Running
Kit. Consult a Yamaha dealer for this Parallel Running
Kit.
Fuel tank cap air vent knob
The fuel tank cap 2is provided with an air vent knob
1to stop fuel flow.
The air vent knob must be turned to “ON”. This will
allow fuel to flow to the carburetor and the engine to
run. When the engine is not in use, turn the air vent
knob to “OFF”to stop fuel flow.
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Remove the fuel tank cap and fill the fuel into the tank
up to the red level 2.
The fuel level in the fuel tank can be checked through
the fuel level gauge 1.
1Fuel level gauge
2Red line
3Fuel level
Your Yamaha engine has been designed to use regular
unleaded gasoline with a pump octane number ((R +
M)/2) of 86 or higher, or research octane number of 91
or higher.
7DK-026
127DK-037
7DK-091
3
7DK-028
4
5
7DK-093
707-095
PREPARATION
AE00856
Fuel
9Fuel is highly flammable and poisonous. Check
“SAFETY INFORMATION”(See page 2) careful-
ly before filling.
9Do not overfill the fuel tank, otherwise it may
overflow when the fuel warms up and expands.
9After fill the fuel, make sure the fuel tank cap is
tightened securely.
9Immediately wipe off spilled fuel with a clean,
dry, soft cloth, since fuel may deteriorate paint-
ed surfaces or plastic parts.
9Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts.
NOTICE
WARNING
Recommended fuel:
Unleaded gasoline
Fuel tank capacity:
Total:
4.2 L (1.11 US gal, 0.92 Imp gal)
4“F”Full
5“E”Empty
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5. Install the cover and tighten the screws.
7DK-031
1
7DK-033
700-119
1
AE00222
Engine oil
The generator has been shipped without engine oil.
Do not start the engine until you have filled it with
the sufficient engine oil.
1. Place the generator on a level surface.
2. Remove the screws 1, and then remove the cover
2.
NOTICE


7DK-030
4. Fill the specified amount of the recommended
engine oil, and then install and tighten the oil filler
cap.
Recommended engine oil:
åYAMALUBE 4 (10W-40), 
SAE 10W-30 or 10W-40
∫SAE #30çSAE #20∂SAE 10W
Recommended engine oil grade:
API Service SE type or higher
Engine oil quantity:
0.4 L (0.42 US qt, 0.35 lmp qt)0°C
å
 YAMALUBE 4 (10W-40)
∂
 SAE 10Wç
 SAE #20∫
 SAE #30
32°F25°C
80°F
3. Remove the oil filler cap 1.
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AE00845
PRE-OPERATION CHECK
If any item in the Pre-operation check is not work-
ing properly, have it inspected and repaired before
operating the generator.
The condition of a generator is the owners responsibil-
ity. Vital components can start to deteriorate quickly
and unexpectedly, even if the generator is unused.
TIP
Pre-operation checks should be made each time the
generator is used.
Pre-operation check
Fuel (See page 12)
9Check fuel level in fuel tank.
9Refuel if necessary.
Fuel line
9Check fuel hose for crack or damage.
9Replace if necessary.
Engine oil (See page 13)
9Check oil level in engine.
9If necessary, add recommended oil to specified
level.
9Check generator for oil leakage.
The point where abnormality was recognized by
use
9Check operation.
9If necessary, consult a Yamaha dealer.
WARNING
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7DK-047
1
7DK-038
AE00846
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 venti-
lated area.
9Before starting the engine, do not connect any
electric devices.
9Clean dusts, dirt or water off the receptacle
before use.
The generator has been shipped without engine oil.
Do not start the engine until you have filled it with
the sufficient engine oil.
NOTICE
WARNING
Starting the engine
1. Turn the economy control switch (Black) to “OFF”
1.
13“OFF”1
7DK-034
1
7DK-035
3. Turn the fuel cock knob to “ON”1.
1“ON”
2. While holding the fuel tank cap so that it will not
move, turn the air vent knob to “ON”1.
1“ON”
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