Usr EV10i Owner's Manual

POWER

EV10i

POWER

OWNER'S MANUAL

USR EV10i

The"e-SPEC"mark symbolizes environmentally
responsible technologies applied to USR power
equipment, which contains our wish to" preserve
nature for generations to come."

1

Indicates a strong possibility of severe personal injury or

death if instructions are not followed.

Indicates a possibility of personal injury or equipment

damage if instructions are not followed.

The generator is designed to give safe and dependable service if
operated according to instructions. Read and understand the Owner's
Manual before operating the generator. Failure to do so could result
in personal injury or equipment damage.

Thank you for purchasing a our generator.

This manual covers operation and maintenance of the EV10i generator.

All information in this publication is based on the latest product
information available at the time of approval for printing.

We reserves the right to make changes at any time

and without incurring any obligation.

No part of this publication may be reproduced without written
permission.

This manual should be considered a permanent part of the generator
and should remain with it if it is resold.

Pay special attention to statements preceded by the following words:

Gives helpful information.

If a problem should arise, or if you have any questions about the
generator, consult an authorized dealer.

The illustration may vary according to the type.

without notice and

2

CONTENTS

..................................................................SAFETY INSTRUCTIONS . 3

............................................................SAFETY LABEL LOCATIONS . 6

...................................................Ce mark and noise label locations . 8

.......................................................COMPONENT IDENTIFICATION . 9

................................................................PRE-OPERATION CHECK . 13

.................................................................STARTING THE ENGINE . 18

Carburetor Modification for High Altitude Operation

...........................................................................GENERATOR USE . 22

.................................................................STOPPING THE ENGINE . 34

...............................................................................MAINTENANCE . 36

...........................................................TRANSPORTING/STORAGE . 43

......................................................................TROUBLESHOOTING . 45

.............................................................................SPECIFICATIONS . 47

..........................................................................WIRING DIAGRAM . 49

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

ʵ

3

SAFETY INSTRUCTIONS

1.

To ensure safe operation

The engine exhaust system will be heated
during operation and remain hot immediately
after stopping the engine.
To prevent scalding, pay attention to the
warning marks attached to the generator.

The muffler becomes very hot during
operation and remains hot for a while after
stopping the engine.
Be careful not to touch the muffler while it is
hot. Let the engine cool before storing the
generator indoors.

Exhaust gas contains poisonous carbon
monoxide. Never run the generator in an
enclosed area. Be sure to provide adequate
ventilation.
When installed inside, adequate ventilation
should be provided.

The generator is designed to give safe and
dependable service if operated according to
instructions.
Read and understand the Owner's Manual
before operating the generator. Failure to do
so could result in personal injury or equipment
damage.

Never connect a cable other than the special
cable for parallel operation to the parallel
operation socket. Electric shocks can result if
this instruction is not followed.

ʵ

4

To ensure safe operation

Keep away from cigarette, smoke and sparks when refueling
the generator. Always refuel in a well-ventilated location.
Wipe up spilled gasoline at once.

Gasoline is extremely flammable and explosive under certain
conditions. Refuel in a well ventilated area with the engine
stopped.

Connections for standby power to a building's
electrical system must be made by a qualified
electrician and must comply with all
applicable laws and electrical codes. Improper
connections can allow electrical current from
the generator to back feed into the utility lines.
Such back feed may electrocute utility
company workers or others who contact the
lines during a power outage, and when utility
power is restored, the generator may explode,
burn, or cause fires in the building's electrical
system.

5

To ensure safe operation

Always make a pre-operation inspection (page ) before you start
the engine. You may prevent an accident or equipment damage.
Place the generator at least 1 m (3 ft) away from buildings or other
equipment during operation.
Operate the generator on a level surface.
If the generator is tilted, fuel spillage may result.

Keep children and pets away from the generator when it is in
operation.
Keep away from rotating parts while the generator is running.
The generator is a potential source of electrical shocks when
misused; do not operate with wet hands.
Do not operate the generator in rain or snow and do not let it get
wet.

Know how to stop the generator quickly and understand operation
of all the controls. Never permit anyone to operate the generator
without proper instructions.

13

6

SAFETY LABEL LOCATIONS

2.

HOT CAUTION

CONNECT CAUTION

FUEL CAUTION/PARALLEL OPERATION CAUTION

READ OWNER扴 MANUAL

EXHAUST CAUTION

[For European model: G, GW, B, F, W types]

These labels warn you of potential hazards that can cause serious
injury. Read the labels and safety notes and precautions described in
this manual carefully.

If a label comes off or becomes hard to read, contact your dealer
for a replacement.

EV10i

Inverter Generator

7

[For Australian model: U type]

SOCKET CAUTION

8

Dry weight

NOISE LABEL

Maximum altitude

IP code

Performance class

Maximum ambient
temperature

CE mark and noise label locations

CE MARK

[For European model: G, GW, B, F, W types]

Mo de l

EV10i

Inverter Generator

EV10i

Inverter Generator

9

COMPONENT IDENTIFICATION3.

CHOKE LEVER

FUEL CAP VENT LEVER

FUEL FILLER CAP

CONTROL PANEL

FRAME SERIAL NUMBER

ENGINE SWITCH

LEFT SIDE
MAINTENANCE COVER

MUFFLER

SPARK PLUG
MAINTENANCE COVER

STARTER GRIP

Record the frame serial number in the space below. You will need this
serial number when ordering parts.

Frame serial number:

10

DC CIRCUIT PROTECTOR

DC RECEPTACLE

OIL ALERT INDICATOR LIGHT

ECO THROTTLE SWITCH

OUTPUT INDICATOR LIGHT

OVERLOAD INDICATOR LIGHT

GROUND TERMINAL

AC RECEPTACLE PARALLEL OPERATION SOCKETS

CONTROL PANEL

G, GW, F, W types

11

AC RECEPTACLE

AC RECEPTACLE

B type

U type

12

Eco Throttle

ECO:

OFF:

OFF

ECO

ECO THROTTLE SWITCH

EECCOO

OOFFFF

Engine speed is kept at idle automatically when the electrical
appliance is disconnected and it returns to the proper speed by the
electrical load when electrical appliance is connected. This position is
recommended to minimize the fuel consumption while in operation.

Eco Throttle system does not operate. Engine speed is kept over rated
speed.

Eco Throttle system does not operate sufficiently if the electrical
appliance requires the momentary electric power.

In DC operation, turn the eco throttle switch to the OFF position.

When high electrical load appliances is connected simultaneously,
turn the Eco Throttle switch to the OFF position to reduce voltage
changes.

13

PRE-OPERATION CHECK

4.

Be sure to check the generator on a level surface with the engine
stopped.

Using nondetergent oil or 2-stroke engine oil could shorten the
engine抯 service life.

SAE Viscosity Grades

AMBIENT TEMPERATURE

Check the engine oil level.

Use high-detergent, premium quality 4-stroke engine oil, certified to
meet or exceed U.S. automobile manufacturer?s requirements for API
Service Classification SG, SF.
Select the appropriate viscosity for the average temperature in your
area.

1.

14

Running the engine with insufficient oil can cause serious engine
damage.

OIL FILLER HOLE

OIL FILLER CAP

UPPER LEVEL

DIPSTICK

Loosen the cover screw and remove the left side maintenance cover.
(see page )
Remove the oil filler cap, and wipe the dipstick with a clean rag. Check
the oil level by inserting the dipstick in the filler hole without screwing
it in.
If the oil level is below the end of the dipstick, refill with recommended
oil up to the top of the oil filler neck.

The Oil Alert System will automatically stop the engine before the oil
level falls below the safe limit. However, to avoid the inconvenience of
an unexpected shutdown, it is still advisable to visually inspect the oil
level regularly.

37

15

Avoid repeated or prolonged contact with skin or breathing of
vapor. KEEP OUT OF REACH OF CHILDREN.

Be careful not to spill fuel when refueling. Spilled fuel or fuel vapor
may ignite. If any fuel is spilled, make sure the area is dry before
starting the engine.

Do not overfill the fuel tank (there should be no fuel above the
upper limit mark). After refueling, make sure the fuel filler cap is
closed properly and securely.

Refuel in a well-ventilated area with the engine stopped. Do not
smoke or allow flames or sparks in the area where the engine is
refueled or where gasoline is stored.

Gasoline is extremely flammable and is explosive under certain
conditions.

FUEL FILLER CAP

OPEN

UPPER LIMIT MARK

Check the fuel level.

If the fuel level is low, refuel the fuel tank until the level as specified.
After refueling, tighten the fuel filler cap securely.

Never use stale or contaminated gasoline or an oil/gasoline mixture.
Avoid getting dirt or water in the fuel tank.

Use automotive unleaded gasoline with a Research Octane Number of
91 or higher (a Pump Octane Number of 86 or higher).

2.

16

Gasolines containing alcohol

If you notice any undersirable operating symptoms while using a
gasoline that contains alcohol, or one that you think contains
alcohol, switch to a gasoline that you know does not contain alcohol.

Before buying fuel from an unfamiliar station, try to find out if the
fuel contains alcohol, if it does, confirm the type and percentage of
alcohol used.

USR cannot endorse the use of fuels containing methanol since
evidence of their suitability is as yet incomplete.

Fuel system damage or engine performance problems resulting
from the use of fuels that contain alcohol is not covered under the
warranty.

Do not use gasohol that contains more than 10% ethanol. Do not use
gasoline containing methanol (methyl or wood alcohol) that does not
also contain cosolvents and corrosion inhibitors for methanol. Never
use gasoline containing more than 5% methanol, even if it has
cosolvents and corrosion inhibitors.

If you decide to use a gasoline containing alcohol (gasohol), be sure it's
octane rating is at least as high as that recommended by USR . There
are two types of "gasohol : one containing ethanol, and the other
containing methanol.

Gasoline spoils very quicklr depending on factors such as light
exposure, temperature and time.
In worst cases, gasoline can be contaminated within 1 month.
Using contaminated gasoline can seriously damage the engine
(caburetor clogged, valve stuck).
Such damage due to spoiled fuel is disallowed from coverage by the
warrantry.
To avoid this please strictly follow these recommendations:

Only use specified gasoline.
To slow deterioration, keep gasoline in a certified fuel container.
If long storage (more than 1 month) is foreseen, drain fuel tank and
carburetor (page ).

43

"

17

Never run the engine without the air cleaner element. Rapid engine
wear will result from contaminants, such as dust and dirt, being
drawn through the carburetor, into the engine.

COVER SCREW

AIR CLEANER ELEMENT

AIR CLEANER BODY

LOWER TAB

LEFT SIDE MAINTENANCE COVER

AIR CLEANER COVER

LATCH TAB

Check the air cleaner.

Check the air cleaner element to be sure it is clean and in good
condition.
Loosen the cover screw and remove the left side maintenance cover.
Press the latch tab on the top of the air cleaner body, remove the air
cleaner cover, check the element.
Clean or replace the element if necessary. (see page ).

3.

38

18

STARTING THE ENGINE

5.

FUEL CAP VENT LEVER

OONN

ON

ON

ON

ENGINE SWITCH

Before starting the engine disconnect any load from the AC receptacle.

Turn the fuel cap vent lever to the OFF position when transporting the
generator.

Turn the engine switch to the ON position.

Turn the fuel cap lever fully clockwise to the ON position.1.

2.

19

Do not allow the starter grip to snap back. Return it slowly by hand.

CLOSED

CLOSED

STARTER GRIP

CHOKE LEVER

Do not use the choke when the engine is warm or the air
temperature is high.

Pull the starter grip lightly until you feel resistance, then pull the
starter grip briskly toward the arrow as shown below.

Move the choke lever to the CLOSED position.3.

4.

20

OPEN

CHOKE LEVER

OOPPEENN

Move the choke lever to the OPEN position as the engine warms up.

If the engine stops and will not restart, check the engine oil level (see
page ) before troubleshooting in other areas.

5.

13

21

When the carburetor has been modified for high altitude operation,
the air-fuel mixture will be too lean for low altitude use. Operation at
altitudes below 1,500 meters (5,000 feet) with a modified carburetor
may cause the engine to overheat and result in serious engine
damage. For use at low altitudes, have your servicing dealer return
the carburetor to original factory specifications.

Carburetor Modification for High Altitude Operation

High altitude performance can be improved by specific modifications
to the carburetor. If you always operate your generator at altitudes
above 1,500 meters (5,000 feet), have your authorized servicing
dealer perform this carburetor modification. This engine, when
operated at high altitude with the carburetor modifications for high
altitude use, will meet each emission standard throughout its useful
life.

Even with carburetor modification, engine horsepower will decrease
about 3.5% for each 300-meter (1,000-foot) increase in altitude. The ef­fect of altitude on horsepower will be greater than this if no carburetor
modification is made.

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.
Operation at an altitude that differs from that at which this engine was
certified, for extended periods of time, may increase emissions.

22

GENERATOR USE6.

Do not exceed the current limit specified for any one receptacle.
Do not connect the generator to a household circuit. This could
cause the damage to the generator or to electrical appliances in the
house.
Do not modify or use the generator for other purposes than it is
intended for. Also observe the following when using the generator.

In either case, the total wattage of all appliances connected must be
considered.

For continuous operation, do not exceed the rated power (see page

).

Connections for standby power to a building抯 electrical system must
be made by a qualified electrician and must comply with all applicable
laws and electrical codes. Improper connections can allow electrical
current from the generator to backfeed into the utility lines. Such
backfeed may electrocute utility company workers or others who
contact the lines during a power outage, and when utility power is
restored, the generator may explode, burn, or cause fires in the
building抯 electrical system.

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 (IEC 245 or equivalent).
Limit length of extension cables; 60 m for cables of 1.5 mm

and 100

m for cables of 2.5 mm

. Long extension cables will lower usable
power due to resistance in the extension cable.
Keep the generator away from other electric cables or wires such as
commercial power supply lines.

48

EARTH MARK

GROUND TERMINAL

Be sure to ground the generator when the connected equipment is
grounded.

23

If you use both at the same time, be sure not to exceed the total
power for AC and DC. (See page ).

The DC receptacle can be used while the AC power is in use.

Most appliance motors require more than their rated wattage for
startup.

48

24

AC applications

Be sure that all appliances are in good working order before
connecting them to the generator. If an appliance begins to operate
abnormally, becomes sluggish, or stops suddenly, turn off the
generator engine switch immediately. Then disconnect the
appliance, and examine it for signs of malfunction.

Substantial overloading that continuously lights the overload
indicator light (red) may damage the generator. Marginal
overloading that temporarily lights the overload indicator light (red)
may shorten the service life of the generator.

OUTPUT INDICATOR
LIGHT (GREEN)

OVERLOAD INDICATOR
LIGHT (RED)

PLUG

Start the engine and make sure the Output indicator (green) comes
on.
Confirm that the appliance to be used is switched off, and plug in the
appliance.

1.

2.

25

Output and Overload Indicators

OUTPUT INDICATOR LIGHT
(GREEN)

OUTPUT INDICATOR LIGHT
(RED)

The Output indicator (green) will remain ON during normal operating
conditions.

Stop the engine if the Overload indicator (red) comes ON and
investigate the overload source.

When an electric motor is started, both the Overload indicator (red)
and the Output indicator (green) may go on simultaneously. This is
normal if the Overload indicator (red) goes off after about five (5)
seconds. If the Overload indicator (red) stays on, consult your generator

dealer.

If the generator is overloaded (in excess of 1.0 kVA), or if there is a
short in the connected appliance, the output indicator light (green) will
go OFF, the overload indicator light (red) will go ON and current to the
connected appliance will be shut off.

Before connecting an appliance to the generator, check that it is in
good order, and that its electrical rating does not exceed that of the
generator. Then connect the power cord of the appliance, and start
the engine.

26

Parallel operation

In either case, the total wattage of all appliances connected must be
considered.

For continuous operation, do not exceed the rated power.

Limit operation requiring maximum power to 30 minutes.

PARALLEL OPERATION SOCKETS

SPECIAL CABLE FOR
PARALLEL OPERATION
(SOLD SEPARATELY)

Rated power in parallel operation is:

Maximum power in parallel operation is:

1.8 kVA

2.0 kVA

Please read the item "GENERATOR USE" before connecting any
equipment to be used.

A max output of 2.0 kVA can be obtained by using two units (EV10i) in
parallel operation (connection in parallel).

There are the terminals into which the special cable is inserted for
parallel operation.
Always use only the special cable for parallel operation

Please order the special cable from the shop where you purchased the
unit or from a service station.

(sold separately).

27

Never connect the different generator models and types.
Never connect a cable other than the special cable for parallel
operation.
Connect and remove the special cable for parallel operation with
the engine stopped.
For single operation, the special cable for parallel operation must be
removed.

UNIT

UNIT

SPECIAL CABLE FOR
PARALLEL OPERATION
(SOLD SEPARATELY)

Depending on the equipment to be used, an overload may be
caused, the overload indicator light (red) may light, and it may
become impossible to take out any more electric power.
Motors generally require two to three times of their power
consumption for starting.

Connect the special cable for parallel operation to the two
generators.

1.

28

Confirm that the use equipment to be connected is switched off.
When the equipment to be used is switched on, it will operate
suddenly, and injuries or accidents may be caused.

OUTPUT INDICATOR
LIGHT (GREEN)

OVERLOAD INDICATOR
LIGHT (RED)

PLUG

GROUND TERMINALGROUND TERMINAL

Start each engine according to" STARTING THE ENGINE".

When the output indicator light (green) does not light and the
overload indicator light (red) lights instead, set the engine switch
to STOP, stop the engine once, and then start the engine again.

Confirm that the equipment to be used is switched off, and insert the
plug of the equipment to be used into the AC receptacle of unit or
unit .

Be sure to ground the generator when the connected equipment is
grounded.

2.

3.

4.

29

OUTPUT INDICATOR LIGHT
(GREEN)

In case of normal operation In case of overload operation or short-circuit

OVERLOAD INDICATOR LIGHT
(RED)

Switch on the equipment to be used.
The output indicator light (green) will light.

At this time, the engine will not stop, so that the engine must be
stopped by setting the respective engine switch to STOP.

In case of overload operation (refer to page ) or when trouble
occurs for the equipment being used, the output indicator light
(green) will go out, the overload indicator light (red) will light
continuously, and no power will be put out.

6.

26

30

When equipment requiring a large starting power, like a motor etc.,
is used, the overload indicator light (red) and the output indicator
light (green) may light together for a short time (about 4 sec), but
this is no abnormality. After start of the equipment, the overload
indicator light (red) will go out and the output indicator light (green)
will stay lit.
When the operation of one generator is to be stopped after start of
the equipment, the special cable for parallel operation also must be
removed at the same time.

When electric power is to be taken again from the generator, switch
off the equipment to be used and remove the plug from the AC
receptacle. Confirm that the equipment and the connection are
normal and that not too much power is to be taken, and then start
the engine.

7.

31

DC Application

To prevent the possibility of creating a spark near the battery,
connect charging cable first to the generator, then to the battery.
Disconnect cable first at the battery.
Before connecting charging cable to a battery that is installed in a
vehicle, disconnect the vehicles grounded battery cable. Reconnect
the vehicle抯 grounded battery cable after the charging cables are
removed. This procedure will prevent the possibility of a short
circuit and sparks if you make accidental contact between a battery
terminal and the vehicle抯 frame or body.

Do not attempt to start an automobile engine with the generator
still connected to the battery. The generator may be damaged.
Connect the positive battery terminal to the positive charging cord.
Do not reverse the charging cables, or serious damage to the
generator and/or battery may occur.

CHARGING CABLE
(SOLD SEPARATELY: G, B, F, W types)

In DC operation, turn the eco throttle switch to the OFF position.

Connect the charging cable to the DC receptacle of the generator
and then to the battery terminals.

The DC receptacle may be used for charging 12 volt automotive-type
batteries only.

1.

ʵ
ʵ

32

Batteries produce explosive gases: If ignited, and explosion can
cause serious injury or blindness. Provide adequate ventilation
when charging.

Keep flames and sparks away, and do not smoke in the area.
ANTIDOTE: If electrolyte gets into your eyes, flush thoroughly with
warm water for at least 15 minutes and call a physician
immediately.
POISON: Electrolyte is poison.
ANTIDOTE

KEEP OUT OF REACH OF CHILDREN.

External: Flush thoroughly with water.
Internal: Drink large quantities of water or milk.
Follow with milk of magnesia or vegetable oil, and call a
physician immediately.

CHEMICAL HAZARD: Battery electrolyte contains sulfuric acid.
Contact with eyes or skin, even through clothing, may cause severe
burns. Wear a faceshield and protective clothing.

DC CIRCUIT PROTECTOR

OFFON

Start the engine.

The C type cannot be used for both AC and DC simultaneously.
An overload DC circuit will trip the DC circuit protector (push button
comes out).
If this happens, wait a few minutes before pushing in the circuit
protector to resume operation.

The DC receptacle can be used while the AC power is in use.

2.

33

Oil alert system

OIL ALERT INDICATOR
LIGHT (RED)

The Oil Alert system is designed to prevent engine damage caused by
an insufficient amount of oil in the crankcase. Before the oil level in the
crankcase falls below a safe limit, the Oil Alert system will
automatically shut down the engine (the engine switch will remain in
the ON position).

If the Oil Alert system shuts down the engine, the Oil Alert indicator
(red) will come on when you operate the starter, and the engine will
not run. If this occurs, check the engine oil level (see page ).

13

34

STOPPING THE ENGINE7.

IN NORMAL USE:

OFF

ENGINE SWITCH

OFF

PLUG

To stop the engine in an emergency, turn the engine switch to the OFF
position.

Switch off the connected equipment and pull the inserted plug.

Turn the engine switch to the OFF position.

1.

2.

35

Be sure the fuel cap vent lever and the engine switch are "OFF" when
stopping, transporting and/or storing the generator.

OFF

OFF

FUEL CAP VENT LEVER

SPECIAL CABLE FOR PARALLEL OPERATION
(SOLD SEPARATERY)

Turn the fuel cap vent lever fully counterclockwise to the "OFF"
position.

When parallel operation has been executed, pull the special cable
for parallel operation.

3.

4.

36

MAINTENANCE8.

Shut off the engine before performing any maintenance. If the engine
must be run, make sure the area is well ventilated. The exhaust
contains poisonous carbon monoxide gas.

Use genuine USR parts or their equivalent. The use of replacement
parts which are not of equivalent quality may damage the generator.

Maintenance Schedule

The purpose of the maintenance and adjustment schedule is to keep
the generator in the best operating condition.
Inspect or service as scheduled in the table below.

REGULAR SERVICE PERIOD (3)
Item
Performed at every indicated
month or operating hour interval,
whichever comes first.

Each use Every

3 months

or

50 hrs.

(1)

Engine oil

Air cleaner

Spark plug

Spark arrester
Valve Clearance
Combustion
chamber
Fuel tank & filter
Fuel line

Check level
Change
Check
Clean
Check-adjust
Replace
Clean
Check-adjust
Clean

Clean
Check

After every 300 hrs (2)

Every year (2)

Every 2 years (Replace if necessary) (2)

Every

6 months

or

100 hrs.

Service more frequently when used in dusty areas.
These items should be serviced by your servicing dealer, unless you have the
proper tools and are mechanically proficient. Refer to dealer shop manual for
service procedures.
For commercial use, log hours of operation to determine proper maintenance
intervals.

First

month

or

10 hrs.

Every

2 years

or

300 hrs.

(2)

(1)
(2)

(3)

37

CHANGING OIL

Make sure to turn the engine switch and the fuel cap vent lever OFF
before draining.

1.

ENGINE OIL CAPACITY:

OIL FILLER CAP

UPPER LEVEL

COVER SCREW

LEFT SIEDE MAINTENANCE COVER

OIL FILLER HOLE

Please dispose of used motor oil in a manner that is compatible with
the environment. We suggest you take it in a sealed container to your
local service station for reclamation. Do not throw it in the trash or
pour it on the ground.

Wash your hands with soap and water after handling used oil.

Reinstall the left side maintenance cover and tighten the cover
screw securely.

Refill with the recommended oil (see page ) and check the oil level.

Drain dirty oil into a container thoroughly.

Remove the oil filler cap.

Loosen the cover screw and remove the left side maintenance cover.

0.25

(0.26 US qt , 0.22 Imp qt)

Drain the oil while the engine is still warm to assure rapid and
complete draining.

1.

2.

3.

4.

5.

13

38

AIR CLEANER SERVICE

Do not use gasoline or low flash point solvents for cleaning. They are
flammable and explosive under certain conditions.

Never run the generator without the air cleaner. Rapid engine wear
may result.

2.

AIR CLEANER COVER

COVER SCREW

AIR CLEANER ELEMENT

LATCH TAB

LOWER TAB

ELEMENT

LEFT SIDE MAINTENANCE
COVER

A dirty air cleaner will restrict air flow to the carburetor. To prevent
carburetor malfunction, service the air cleaner regularly. Service more
frequently when operating the generator in extremely dusty areas.

Loosen the cover screw and remove the left side maintenance cover.
Press the latch tab on the top of the air cleaner body, and remove
the air cleaner cover.
Wash the element in a non-flammable or high flash point solvent
and dry it thoroughly.
Soak the element in clean engine oil and squeeze out the excess oil.
Reinstall the air cleaner element and the cover.
Reinstall the air cleaner cover by inserting the lower tabs, and the
latch tab.
Reinstall the left side maintenance cover and tighten the cover
screw securely.

3.

1.

2.

4.

5.

6.

7.

39

SPARK PLUG SERVICE

RECOMMENDED SPARK PLUG:

3.

HANDLE BAR

PLUG WRENCH

SPARK PLUG CAP

SPARK PLUG MAINTENANCE COVER

To ensure proper engine operation, the spark plug must be properly
gapped and free of deposits.

Remove the spark plug cap.
Clean any dirt from around the spark plug base.
Use a spark plug wrench to remove the spark plug.

CR4HSB (NGK)
U14FSR-UB (DENSO)

Remove the spark plug maintenance cover.1.

2.

3.

4.

ʵ ʵ

ʵ

ʵ

40

The spark plug must be securely tightened. An improperly
tightened plug can become very hot and possibly damage the
generator.
Never use a spark plug with an improper heat range.

0.60 0.70 mm
(0.024 0.028 in)

Visually inspect the spark plug. Discard it if the insulator is cracked
or chipped. Clean the spark plug with a wire brush if it is to be
reused.
Measure the plug gap with a feeler gauge.
Correct as necessary by carefully bending the side electrode.
The gap should be:

After a new spark plug has been seated by hand, it should be
tightened 1/2 turn with a wrench to compress its washer.
If a used plug is being reinstalled, it should only require 1/8 to 1/4
turn after being seated.

Install the spark plug carefully, by hand, to avoid cross-threading.

Reinstall the spark plug cap on the spark plug securely.
Reinstall the spark plug maintenance cover.

0.60 0.70 mm (0.024 0.028 in)

5.

6.

7.

8.

9.

10.

41

SPARK ARRESTER MAINTENANCE

The spark arrester must be serviced every 100 hours to maintain its
efficiency.

If the generator has been running, the muffler will be very hot.
Allow it to cool before proceeding.

4.
(Equipped type)

6 mm BOLTS

MUFFLER PROTECTOR

5 mm SCREW

MUFFLER GASKET

SPARK ARRESTER

MUFFLER

Remove the three 6 mm bolts, and remove the muffler, the spark
arrester and the muffler gasket.

Remove the four 5 mm screws, and remove the muffler protector.1.

2.

42

Use a brush to remove carbon deposits from the spark arrester
screen.
Inspect the spark arrester screen for holes or tears. Replace if
necessary.

Check the muffler gasket; replace if damaged.
Reinstall the muffler gasket, the spark arrester, the muffler and the
muffler protector in the reverse order of removal.

3.

4.

43

TRANSPORTING/STORAGE

9.

Do not drive on a rough road for an extended period with the
generator on board. If you must transport the generator on a rough
road, drain the fuel from the generator beforehand.

Avoid a place exposed to direct sunlight when putting the
generator on a vehicle. If the generator is left in an enclosed vehicle
for many hours, high temperature inside the vehicle could cause
fuel to vaporize resulting in a possible explosion.

Do not operate the generator while it is on a vehicle. Take the
generator off the vehicle and use it in a well ventilated place.

Do not overfill the tank (there should be no fuel in the filler neck).

When transporting the generator:

Gasoline is extremely flammable and is explosive under certain
conditions. Perform this task in a well ventilated area with the engine
stopped. Do not smoke or allow flames or sparks in the area during
this procedure.

To prevent fuel spillage when transporting or during temporary
storage, the generator should be secured upright in its normal
operating position, with the engine switch OFF.
The fuel cap vent lever is turned fully counterclockwise to the" OFF"
position.

Drain the fuel.

Be sure the storage area is free of excessive humidity and dust.

Before storing the unit for an extended period:

Drain all gasoline from the fuel tank into an approved gasoline
container.

1.

2.

a.

ʵ

˓

44

STARTER GRIP

SCREW DRIVER

Turn the engine switch ON, and loosen the carburetor drain screw
and drain the gasoline from the carburetor into a suitable container.
With the drain screw loosened remove the spark plug cap, and pull
the starter grip 3 to 4 times to drain the gasoline from the fuel pump.
Turn the engine switch to the OFF position, and tighten the drain
screw securely.
Reinstall the spark plug cap on the spark plug securely.

Change the engine oil.
Remove the spark plug and pour about a tablespoon of clean engine
oil into the cylinder. Crank the engine several revolutions to
distribute the oil, then reinstall the spark plug.
Slowly pull the starter grip until resistance is felt. At this point, the
piston is coming up on its compression stroke and both the intake
and exhaust valves are closed. Storing the engine in this position
will help to protect it from internal corrosion.

3.

4.

5.

b.

c.

d.

e.

45

TROUBLESHOOTING

10.

When the engine will not start:

Is there fuel in
the tank?

Refill the fuel
tank.

Is the enough oil
in the engine?

Is the engine
switch on?

Turn the engine
switch on.

Add the
recommended
oil.

Is the spark plug
in good
condition?

Clean, readjust
gap and dry the
spark plug.
Replace it if
necessary.

If the engine still
does not start,
take the
generator to an
authorized

dealer.

NO

NO

NO

YES

YES

YES

NO

YES

46

Appliance does not operate:

No electricity at the DC receptacle:

Is the Output
indicator ON?

Is the DC circuit
protector on?

Take the
generator to an
authorized
dealer.

Turn the DC
circuit protector
on.

Take the
generator to an
authorized

dealer.

Is the Overload
indicator ON?

Check the
electrical
appliance or
equipment for
any defects.

Take the
generator to an
authorized
dealer.

Replace the
electrical
appliance or
equipment.
Take the
electrical
appliance or
equipment to
an electrical
shop for repair.

Stop and restart
the engine.

NO

NO

NO

YES

YES

YES

NO DEFECTS

DEFECTS

ʷ ʷʷ

47

SPECIFICATIONS11.

Dimensions and Weight

Engine

450 mm (17.7 in)

Model
Description code
Length
Width
Height
Dry weight

EZGA

240 mm (9.4 in)

380 mm (15.0 in)

13 kg (29 lbs)

GXH50

4-stroke, overhead valve, single cylinder

50 cm

(3.1 cu-in)

41.8 36.0 mm (1.64 in 1.42 in)

8.0:1

Forced air

Full transistor

0.25

(0.26 US qt , 0.22 Imp qt)

EV10i

5,500 rpm (with eco throttle switch OFF)

2.3

(0.61 US gal , 0.51 Imp gal)

Model
Engine type
Displacement
Bore Stroke
Compression ratio
Engine speed
Cooling system
Ignition system
Oil capacity
Fuel tank capacity
Spark plug CR4HSB (NGK)

U14FSR-UB (DENSO)

48

Generator

Noise

CONTROL
PANEL

Center

1.60 m

1.0 m

Microphone point

EV10i

G, GW, B, F, W U

230 240

50 50

3.9 3.8
900

1,000

EU10i

G, GW, B, F, W U

72 dB

87 dB

Model

Type
Sound pressure level (Lp )
According to 98/37/EC

Guaranteed sound power
level (L )
Tested by 2000/14/EC

Model

Type

AC
output

DC rated output

Only for charging 12 V

automotive batteries.

12 V, 8 A

Rated voltage (V)
Rated frequency (Hz)
Rated Ampere (A)
Rated Output (VA)
Max Output (VA)

Specifications are subject to change without notice.

A

W

49

WIRING DIAGRAM12.

AC Noise Filter
AC Output Receptacle
Capacitor
Composite Socket
Control Panel Block
DC Diode
DC Noise Filter
DC Output Receptacle
DC Winding
Eco throttle switch
Engine Block
Engine Ground
Engine Switch
Exciter Winding
Frame Block
Frame Ground
Generator Block
Ground Terminal
Ignition Coil
Inverter Unit
Main Winding
Oil Alert Indicator
Overload Indicator
Oil Level Switch
Pulser Coil
Output Indicator
Spark Plug
Spark Unit
Stepping Motor
Sub Winding

AC, NF
ACOR
Ca
Cot
CPB
DC, D
DC, NF
DCOR
DC, W
EcoSw
EgB
EgG
ESw
ExW
FrB
FrG
GeB
GT
IgC
IU
MW
OAL
Ol
OLSw
PC
PL
SP
SpU
StpM
SW

50

BLACK
YELLOW
BLUE
GREEN
RED
WHITE
BROWN
LIGHT GREEN
GRAY
LIGHT BLUE
ORANGE
PINK

Bl
Y
Bu
G
R
W
Br
Lg
Gr
Lb
O
P

ECOTHROTTLE SWITCH

ENGINE SWITCH

OFF
ON

OFF

ON

G Bl

R/W R/Y ECO

OFF

ON

51

G, GW, B, F, W type

52

U type

53

RECEPTACLE

Shape

Type

B

W

F

U

G, GW