Cobra IG10SI User manual

4-Stroke Engine
INVERTER GENERATOR
USER MANUAL
Model：IG10SI

IMPORTANT SAFETY NOTICE:
●Cobra reserves the right of modification of product and revision of the manual without any notice.
●Take this manual as a part of the generator. If the generator is resold, it is required to take the manual along
with the generator.
●This manual contains how to correctly operate the generator, please read carefully before using the generator.
Correct and safe operation will guarantee your safety and extend the working life of generator.
●Cobra will continuously innovate and develop its products both in design and quality. The content of this
manual may have minor difference from the updated product. Please contact your supplier for further support.
Thank you for purchasing Cobra Inverter Generator
The emission of engines contains poisonous carbon monoxide. Use the generator
only outdoors and away from people.
NEVER use petrol powered equipment in a home, garage, tent, camper-van,
caravan, motor-home or boat. Even if doors, windows or vents are open. Only use
outdoors, well away from doors, widows and openings. Prevent inhaling exhaust
fumes.

CONTENTS
08.Maintenance
1)Change oil
2)Air cleaner service
3)Spark plug service
09.Transporting/Storing
1)Environment correction
2)Noise and access
14.Consumer information
21
21
22
24
25
27
29
30
31
32
01.Safety information 04
06
08
08
02.Safety label locations
03.Components identification
1)Control Panel
2)ECON.SW
4)Hourmeter
04.Pre-operation check
1)Check oil level
2)Check fuel level
3)Check air cleaner
05.Starting the engine
06.Generator use
1)DC application
2)AC application
3)Output and overload indicator
4)Oil alert system
07.Stopping the engine
09
10
10
11
12
13
15
16
18
18
19
20
07
4)Spark arrester maintenance
10.Troubleshooting
11.Technical specifications
12.Wiring diagrams
13.Appendix
32
33
34
3)Reset 09

1.SAFETY INFORMATION
●Read and understand the user manual before
using the generator.
●The emission of engine contains poisonous
carbon monoxide. Use the generator in well
ventilated conditions.
●Do not touch the hot muffler, when the generator
is running, or before cooling.
●Petrol is explosive and flammable in the specified
conditions when refueling, the generator needs to
be stopped and be kept cigarette and fire source
away.
●Do not connect to the building’s electrical system
or other generator, in order to avoid the electric
shocks and fires.
●The running generator must keep one meter
To ensure personal and property safety, please
carefully read the following information.
<<04>>
WARNING
distance with constructions and other
electrical appliances at least.
●Place the generator on the leveled surface, in
order to avoid overturning or spilling fuel.
●Children and pets should be keep away the
operation area.
●Do not operate with wet hands.
●Do not expose the generator to rain, moisture or
snow.
●Place the generator at least 1m away from
buildings or other equipments during
operation.
●The major repair work should be carried out
only by professionally trained person.
●Do not use the generator in underground
working
●Do not use the generator in potentially
explosive atmospheres
●Use personal protective equipment: glove,
mask, earplugs, when you operate

<<05>>
SAFETY LABEL:

<<06>>
2. SAFETY LABEL LOCATIONS

<<07>>
SPARK PLUG
MAINTENANCE
COVER
MUFFLER
3. C IDENTIFICATIONOMPONENTS
CHOKE LEVER
FUEL CAP VENT LEVER
FUEL CAP
AIR CLEANER
MAINTENANCE
COVER
STARTER GRIP
ENGINE SWITCH
CONTROL
PANEL

3.1) Control Panel
1
2
3
4
5
6
7
8
9
<<08>>
3.2) ECON. SW (Economy control switch):
“ON”()
●When the economy control switch is turned to
“ON”(),the engine keeps running at idle state
automatically when the electrical appliance is
disconnected,and it will return to the proper speed
with the requirement of electrical load.
●The “ON”( ) is recommended to minimize the fuel
ON
OFF
ONOFF
ECON. SW
Oil Alert Indicator Light(red)
Overload Indicator Light(red)
Output Indicator Light(green)
DC Circuit Protector
DC Receptacle
Ground Terminal
ECON. SW
10
1
2
3
4
5
6
9
10
7
11
8
11Engine Switch
Hourmeter
AC Receptacle
Fuel Switch

<<09>>
NOTE
■When a high load electrical appliance is
connected instantaneously, in order to reduce
voltage change, turn the economy control
switch to the“OFF”( )position.
■In DC operation, turn the economy control
switch to the “OFF”( )position.
■Connect both AC load and DC load, turn the
economy control switch to the “OFF”( )
position.
“OFF” ( )
When the economy control switch turns to the “OFF”
( ) engine runs at high speed.
●Press the “DISP” button to display the
voltage/frequency of output, the engine speed
and cumulative working time in turn.
●Press the “DISP” button, the back-light of hour-
meter will be on, and it will be off without
operating the button for 10S.
3.4) Hour-meter

4. PRE- OPERATION CHECK
WARNING
Be sure the generator is on the leveled surface and
the generator is stopped.
Remove the oil filler cap, and then clean it with
cloths. Reinsert it into the crankcase, and take out
to check oil level:
If the oil level reduces at the bottom of the oil filler
cap, add the engine oil.
4.1) Check Oil Level
■Using non-detergent or 2-stroke oil could
shorten the engine’s working life.
■Using the high quality engine oil with strong
detergents
■Using 4-stroke engine oil, certified to meet or
exceed API standards: SG, SF ,SE stickiness
rating:
-30 -20 -10 0 10 20 30 40℃
15W-40
10W-40
10W-30
5W-30
-20 020 40 60 80 100F
NOTE
Carefully use and store the engine oil, avoid
getting dirt or dust into the engine oil.
Mixing different kinds of engine oil is prohibited.
<<10>>
Oil Capacity:0.25L
NOTE
DIPSTICK OIL FILLER HOLE
UPPER LEVEL
OIL FILLER
CAP

NOTE
■Before the engine oil reduces below the safety
margin, low oil alert system will close the
engine automatically. The oil alert indicator
light (red) will be on.
■To avoid the inconvenience caused by
unexpected stopping, it is still advisable to
check the engine oil level regularly.
4.2) Check Fuel Level
Fuel recommend: use unleaded petrol
(Research Octane Number of 91 or higher, Pump
Octane Number of 86 or higher).
Never use stale or contaminated gasoline or an
oil/gasoline mixture.
Avoid getting dirt or water into the fuel tank.
Do not use a mixture petrol containing ethanol or
methanol; otherwise, it will seriously damage the
engine.
Fuel capacity: 3.8L
OPEN
FUEL CAP
UPPER LIMIT MARK
WARNING
●Petrol is extremely explosive and flammable.
●Around the refueling area and fuel storage
area, prohibit smoking and firing.
●Do not overfill the fuel tank (no fuel above the
red upper limit mark). After refueling, make sure
the fuel cap is closed properly and securely.
●Do not spill fuel from fuel tank. (No residual fuel
around the neck of tank, before starting engine)
●Avoid contacting with skin or breathing the fuel
vapor.
●KEEP OUT OF REACH OF CHILDREN.
<<11>>

b.P ress the latch tab on the top of the air cleaner.
c.R emove the air cleaner cover.
d. Check the element, clean or replace it, if necessary.
NOTE
■ Do not run engine without air Cleaner
element, otherwise that makes engine
4.3) Check Air Cleaner
Check the air cleaner element to be sure it is clean
and in good condition.
a.Loosen the air cleaner maintenance cover
screws, and remove the cover.
<<12>>
COVER SCREW
AIR CLEANER MAINTENANCE
COVER
AIR CLEANER
COVER
AIR CLEANER ELEMENT

5. STARTING THE ENGINE
NOTE
■Before starting engine, disconnect load with
AC receptacle.
■Fueling at the first time, refueling, or storing
for a long time, the engine switch should
firstly be opened for ten or twenty seconds
and then require additional pull 10-20 times,
in order to the enough fuel enter into
carburetor.
5.1) Turn the fuel cap vent lever to the “ON”
position.
OFF
ON
ON
FUEL CAP VENT LEVER
NOTE
■When transporting generator, turn the fuel
cap vent lever to the “OFF” position.
ON
OFF
ENGINE SWITCH
5.3) Move the choke lever to “CLOSED” position.
<<13>>
CHOKE LEVER
CLOSED CLOSED

NOTE
■Do not move the choke lever to “CLOSED”
position, when engine is hot or ambient
temperature is high.
5.4) Pull the starter grip lightly until you feel
resistance, then pull quickly toward arrow as
shown below.
NOTE
■Return the starter grip slowly by hand. Do not
make the starter grip spring back quickly.
NOTE
■If the generator stops and can not restart,
check the oil level firstly.
Carburetor Modification for High Altitude
Operation
At high altitude, the standard carburetor air-
fuel mixture will be too rich. Performance will
decrease, and fuel consumption will increase. A
very rich mixture will also foul the spark plug
and cause hard starting.
If the generator operates at high altitude,
change the main-nozzle or adjust the idling-
5.5) After starting and warming up the engine,
turn the choke lever to “OPEN” position.
<<14>>
CHOKE LEVER
OPEN OPEN
STARTER GRIP

screw of carburetor.
If the generator always operates at altitude
above 1,000 meters, contact with an authorized
Cobra servicing to modify the carburetor.
Generator output power should be modified
according to the altitude and ambient
temperature. The correction factor refers to
13-1.
WARNING
●If the carburetor has been modified for high
altitude operation, the air-fuel mixture will be too
lean for low altitude use. Operation at low
altitude may cause the engine to overheat and
result in serious engine damage. The carburetor
needs return to original settings
6. GENERATOR USE
WARNING
●Be sure to ground the generator when the
connected electrical appliance is grounded.
●Do not connect to the building’s electrical
system, in order to avoid the electric shocks
GROUND TERMINAL
<<15>>

NOTE
■The AC receptacle can be used while the DC
power is in use. If use both at same time, be
sure not to exceed the total power for AC and
DC. (AC:0.9kVA,DC:5A)
■Most of motor appliances require more than
their rated wattage, when starting.
6.1) DC Application
The DC receptacle, 15-30V under no-load condition,
may be used for charging 12V battery only.
NOTE
■In DC operation, turn the ECON.SW to the
"OFF” ( ) position.
6.1.1) Connect the DC receptacle to battery
WARNING
●For continuous operation, do not exceed the
rated out-put power of generator.
●Do not make parallel connection with other
generators.
●Do not connect an extension to the exhaust
pipe.
●When an extension cable is required, be sure
to use a tough rubber sheathed flexible cable
(according to IEC245 or equivalent
standards). The length of the extension cable:
2
60m for cable of 1.5mm ; 100m for cable of
2
2.5mm .
●Keep away from other electric cables or wires.
<<16>>
CHARGING CABLE

NOTE
■Do not start the automobile engine when the
generator is still connected to the battery,
otherwise the generator will be damaged.
■Connect the positive battery terminal to the
positive charging cable. Do not reverse the
charging cable.
WARNING
●The battery can release the explosive gases.
Keep the battery away from spark/fire.
Charge the battery in ventilated condition.
●Battery electrolyte contains sulfuric acid
that will cause severe burn of skin and eyes.
Therefore it is necessary to wear the
protective clothing and mask.
●If battery electrolyte gets into eyes, flush
thoroughly with warm water for 15min at
least, and call a doctor immediately.
●If you swallow a little of battery electrolyte
accidentally, flush thoroughly with water
your mouth, and then drink large quantities
of water or milk (with magnesia or vegetable
oil), and call a doctor immediately.
NOTE
■The DC receptacle can be used while the AC
power is in use
■When DC circuit overload will trip the DC
●In order to avoid producing the spark at the
terminals of battery, connect the charging
cable firstly to the battery terminals, and then
to the generator. Disconnect the cable firstly
at the generator .
●Before connecting the charging cable to a
battery that is installed in vehicle,the
grounded cable of battery will be
disconnected firstly. This sequence will
prevent sparks or short-circuit. When the
cable accidentally contact the vehicle’s frame
WARNING
<<17>>