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...

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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
 7DK-9-11_a  11.3.21 15:19  Page 7 

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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...

– 9–
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...

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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...

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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...

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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...

– 13– 1Upper level
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...

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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...

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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...