DuroStar DS10000E User manual

Owner’s Manual
Gasoline Powered Generator
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We have made every effort to ensure the accuracy of the information in this manual.
This manual provides information regarding the operation and maintenance of these products.
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The generator is a potential source of electrical shock if misused. Do not expose the generator to
These labels warn you of potential hazards that can cause serious injury. Read them carefully.
moisture, rain or snow. Do not let the generator get wet, and do not operate it with wet hands.

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SAFETY INFORMATION
Read and understand this instruction manual before operating your generator. You can help prevent
accidents by being familiar with your generator’s controls, and by observing safe operating
procedures.
Operator Responsibility
Know how to stop the generator quickly in case of emergency.
Understand the use of all generator controls, output receptacles, and connections.
Do not let children operate the generator without parental supervision.
Carbon Monoxide Hazards
Exhaust contains poisonous carbon monoxide, a colorless and odorless gas. Breathing exhaust
can cause loss of consciousness and may lead to death.
If you run the generator in an area that is confined, or even partially enclosed, the air you breathe
could contain a dangerous amount of exhaust gas. To keep exhaust gas from accumulating,
provide adequate ventilation.
Electric Shock Hazards
The generator produces enough electric power to cause a serious shock or electrocution if misused.
Using a generator or electrical appliance in wet conditions, such as rain or snow, or near a pool or
sprinkler system, or when your hands are wet, could result in electrocution. Keep the generator dry.
If the generator is stored outdoors, unprotected from the weather, check all of the electrical
circuit in electrical components, which could result in electrocution.
Do not connect to a building electrical system unless a qualified electrician has installed an isolation
switch.
Fire and Burn Hazards
The exhaust system gets hot enough to ignite some materials.
Keep the generator at least 3 feet (1 meter) away from buildings and other equipment during
operation.
Do not enclose the generator in any structure.
Keep flammable materials away from 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.
Gasoline is extremely flammable and is explosive under certain conditions. Do not smoke or allow
flames or sparks where the generator is refueled or where gasoline is stored. Refuel in a
well-ventilated area with the engine stopped.
any spilled fuel has been wiped up before starting the generator.
Fuel vapors are extremely flammable and may ignite after the engine has started. Make sure that
components on the control panel before each use. Moisture or ice can cause a malfunction or short

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CONTENTS
SAFETY INFORMATION……………………………………………………………..2
COMPONENT IDENTIFICATION…………..…………………………………….…4
WATTAGE REFERENCE CHART……..……………………………………… . ... ..7
SPECIFICATIONS…………………………………………….………………….……8
WIRING DIAGRAM………………………………………………………….……..…9
ASSEMBLY………………………………………………………..……………….……10
PRE-OPERATION CHECK……………………………………………………...…….10
STARTING THE ENGINE/STOPPING THE ENGINE………………..…….………12
OPERATING INSTRUCTIONS………………………………………….…….…….. .12
MAINTENANCE…………………………………………..…………………….………15
STORAGE…………………………………………………..……………………………18
TROUBLESHOOTING…………………………………..……………………………..19
WARRANTY SERVICE INFORMATION……………………………..………….….24

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Engine Key
To start and stop the engine.
Key position:
OFF: To stop the engine. Key can be removed / inserted.
START: To start the engine by operating the starter motor.
Recoil Starter
Do not allow the starter grip to snap back against the engine. Return it gently to prevent damage to the starter.
.
Voltage Selector Switch
Switch Position
Fuel Valve Lever
The fuel valve is located between the fuel tank
and carburetor. When the valve lever is in the ON
position, fuel is allowed to flow from the fuel tank
to the carburetor. Be sure to return the fuel valve
lever to the OFF position after stopping the
en
g
ine.
Choke Rod
The choke is used to provide an enriched fuel
opened and closed by operating the choke rod
ON: To run the engine after starting, or to pull start the unit.
To start the engine, turn the key to on, pull the starter grip lightly until resistance is felt, then pull briskly.
mixture when starting a cold engine. It can be
must be in the ‘‘120/240V’’ position. If only a 120V appliance is being connected select the "120V"
position.
120V: Do not use the 120/240V twist lock receptacle in this position. The most power will be available
at the 50A 120/240V receptacle.
Do not turn the key switch to START position when the engine is running. This may cause
damage to the starting motor.
enrich the mixture to start the unit.
manually. Pull the rod out toward OFF to
The voltage selector switch switches the main power carrying windings of the generator to produce
‘‘120V ’’ or ‘‘120/240V’’. If a 240V appliance is connected to the unit than the voltage selection switch
120/240V: The 120V and 120/240V receptacles can be used simultaneously.

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Ground Terminal
The generator ground terminal is connected to the frame of the generator, the metal
non-current-carrying parts of the generator, and the ground terminals of each receptacle.
DC Receptacle
The DC receptacle may ONLY be used for charging 12 volt automotive type batteries.
The battery must be connected to the generator DC receptacle with the proper polarity (battery
positive to generator positive (+) and battery negative to the generator negative (-).
Do not start the vehicle while the battery charging cable is connected and the generator is running.
DC Circuit Protector
The DC circuit protector automatically shuts off the DC battery charging circuit when the DC
charging circuit is overloaded, when there is a problem with the battery, or when the connections
between the battery and the generator are improper.
Oil Alert System
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 can fall below a safe limit, the Oil Alert system
will automatically stop the engine (the engine switch will remain in the ON position). The Oil Alert
system should not take the place of checking the oil level before each use.
If the engine stops and will not restart, check the engine oil level before troubleshooting in other areas.
AC Circuit Breaker
check that the appliance is working properly and does not exceed the rated load capacity of the circuit
before switching the AC circuit breaker ON again. The AC circuit breaker may be used to switch the
generator power ON or OFF.
AC Circuit Protector
The AC circuit protectors will automatically switch OFF if there is a short circuit or a
significant overload of the generator at the 20A 120V, 30A 120V plug. If an AC circuit
protector switches OFF automatically, check that the appliance is working properly and
does not exceed the rated load capacity of the circuit before resetting the AC circuit
protector ON.
ONLY change the Voltage Selector Switch after turning the AC circuit breaker to OFF. The unit may
be permenantly damaged if the Voltage Selector Switch is changed with the breaker in the ON position.
The vehicle or the generator could be damaged.
overload of the generator at the receptacle. If the AC circuit breaker is trips automatically,
The AC circuit breaker will automatically trip OFF if there is a short circuit or a significant

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WATTAGE REFERENCE CHART
Electric equipment, especially engines produce strong current when being started. The table below offers references
when you connect those installations to generator.
Tool or Appliance Rated* (Running) Watts Additional Surge (Starting) Watts
Essentials
Light Bulb-75 watt 75 -
Sump Pump 800 1200
Refrigerator/Freezer-18 Cu. Ft. 800 1600
Water Well Pump-1/3 HP 1000 2000
Heating/Cooling
Window Air Conditioner-10000 BTU 1200 1800
Window Fan 300 600
Furnace Fan Blower-1/2 HP 800 1300
Kitchen
Coffee Maker 1500 -
Electric Stove- Single Element 1500 -
Hot Plate 2500 -
Family Room
DVD/CD Player 100 -
VCR 100 -
Stereo Receiver 450 -
Color Television- 27” 500 -
Personal Computer w/17” Monitor 800 -
Other
Security System 180 -
AM/FM Clock Radio 300 -
Garage Door Opener- 1/2 HP 480 520
Electric Water Heater- 40 Gallon 4000 -
DIY / Job Site
Quartz Halogen Work Light 1000 -
Airless Sprayer- 1/3 HP 600 1200
Reciprocating Saw 960 960
Electric Drill- 1/2 HP 1000 1000
Circular Saw- 7 1/4” 1500 1500
Miter Saw- 10” 1800 1800
Table Planer- 6” 1800 1800
Table Saw / Radial Arm Saw- 10” 2000 2000
Air Compressor- 1- 1/2 HP 2500 2500
*Wattages listed are approximate only. Check tool or appliance for actual wattage.
Deep Freezer 500 800
Microwave Oven-1000 watt 1000 2000

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SPECIFICATIONS
Generator
Frequency 60 HZ
Max. AC Output 10000 Watt
Rated AC Output 8000 Watt
Run Time 8 hour
Engine
Type Air Cooled, OHV, 4-Stroke
Displacement 419 cc
Output 16.0 HP / 3600 rpm
Fuel Unleaded Gasoline
Fuel Tank Capacity 8.3 Gallon
Oil Alert Standard
Fuel Gauge Standard
Standard
Features
Air Cleaner Standard
Silencer Standard
Voltmeter Standard
Receptacle
2NEMA 5-20R
1NEMA 5-30R
1NEMA L14-30R
1NEMA 14-50R
Plug(Not included with
your generator)
2NEMA 5-20P
1NEMA 5-30P
1NEMA L14-30P
1NEMA 14-50P
Voltage Selector Standard
DC Circuit Breaker Standard
DC Receptacle Standard
AC Circuit Breaker Standard
AC Circuit Protector Standard
AC Receptacle 2 Pole 120V AC
3 Pole 120V/240V AC
Dimensions
Length 34"
Width 27"
Height 32"
Gross Weight 240 lbs.
Decibel <72 dBA
Battery 12V 18A/hr
Model DS10000E
Model DS16HPE

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ASSEMBLY
Wheel Kit Installation
1Install the axle assembly on the generator.
3Install the two stands on the under frame using the flange nuts.
Starter Cables Connection
2Connect the starter cable to the battery positive () terminal first, then to the negative ()
terminal. When disconnecting, disconnect at the battery negative () terminal first.
Battery posts, terminals and related accessories contain lead and lead compounds. Wash hands after
handling.
PRE-OPERATION CHECK
Engine Oil
Engine oil is a major factor affecting engine performance and
service life. Non-detergent and 2-stroke engine oils will damage
the engine and are not recommended.
Check the oil level BEFORE EACH USE with the
generator on a level surface and the engine stopped.
 Use 4-stroke motor oil that meets or exceeds the
2Install the two wheels on the axle shaft using the flange nuts.
1Route the starter cable under the tank.
requirements for API service classification SAE.
Always check the API SERVICE label on the oil container to be sure it includes the letter SAE.

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 SAE 10W-30 is recommended for general, all-temperature use. Other viscosities shown in the
chart may be used when the average temperature in your area is within the indicated range.
1 Remove the oil filler cap and wipe the dipstick clean.
2 Check the oil level by inserting the dipstick into the filler neck without screwing it in.
3 If the level is low, fill to the top of the oil filler neck with the recommended oil.
Fuel
 Check the fuel gauge, and refill the tank if the fuel level is low.
 Refuel carefully to avoid spilling fuel. Do not fill above the shoulder of the fuel strainer.
Gasoline is highly flammable and explosive, and you can be burned or seriously injured when
refueling.
 Stop engine and keep heat, sparks, and flame away.
Refuel only outdoors.
Wipe up spills immediately.
Unleaded gasoline produces fewer engine and spark plug deposits and extends exhaust system life.
Never use stale or contaminated gasoline or an oil/gasoline mixture. Avoid getting dirt or water in the
fuel tank.
 Use unleaded gasoline with a octane rating of 86 or higher.
This engine is certified to operate ONLY on unleaded gasoline.

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STARTING THE ENGINE / STOPPING THE ENGINE
Starting the Engine
1Make sure that the AC circuit breaker is in the OFF position. The generator may be hard to
start if a load is connected.
2Turn the fuel valve lever to the ON position.
4Connect the battery cables to the generator.
5Turn the engine switch to the START position and hold it there for 5 seconds or until the
engine starts.
Operating the starter motor for more than 5 seconds can damage the motor. If the engine fails to start,
release the switch and wait 10 seconds before operating the starter again.
If the speed of the starter motor drops after a period of time, it is an indication that the battery should
be recharged.
When the engine starts, allow the engine switch to return to the ON position.
Stopping the Engine
In an emergency:
To stop the engine in an emergency, move the engine switch to the OFF position.
In normal use:
2Turn the engine switch to the OFF position.
3Turn the fuel valve lever to the OFF position.
OPERATING INSTRUCTIONS
Connections to a Building Electrical System
Connections for standby power to a building electrical system must be made by a qualified electrician.
The connection must isolate the generator power from utility power, and must comply with all
applicable laws and electrical codes. A transfer switch, which isolates generator power from utility
power, is prerequisite.
Improper connections to a building electrical system 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 the generator may explode, burn, or cause fires when
utility power is restored. Consult the utility company or a qualified electrician.
Ground System
The portable generators have a system ground that connects generator frame components to the
ground terminals in the AC output receptacles. The system ground is not connected to the AC neutral
wire.
AC Applications
Before connecting an appliance or power cord to the generator:
 Make sure that it is in good working order. Faulty appliances or power cords can create a
3The choke will need to be closed, pull the choke rod out to the CLOSED/OFF position.
Push the choke to the OPEN/ON position as the engine warms up.
1Turn the AC circuit breaker to the OFF position.

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potential for electrical shock.
 If an appliance begins to operate abnormally, becomes sluggish or stops suddenly, turn it off
immediately. Disconnect the appliance, and determine whether the problem is the appliance, or if
the rated load capacity of the generator has been exceeded.
 Make sure that the electrical rating of the tool or appliance does not exceed that of the generator.
Never exceed the maximum power rating of the generator. Power levels between rated and
maximum may be used for no more than 30 minutes.
Substantial overloading will open the circuit breaker. Exceeding the time limit for maximum power
operation or slightly overloading the generator may not switch the circuit breaker or circuit protector
OFF, but will shorten the service life of the generator.
AC Operation
2Turn the voltage selector switch to either position.
With the voltage selector switch in the ‘‘120/240V’’ position, you can use the 120V and 120/240V
3Switch the AC circuit breaker ON.
4Plug in the appliance.
Most motorized appliances require more than their rated power for startup.
AC circuit breaker or AC circuit protector to switch OFF, reduce the electrical load on the circuit, wait
a few minutes and then reset the AC circuit breaker or AC circuit protector.
AC Receptacle Selection
The generator has two separate main power producing circuits. These two circuits supply equal power
to different receptacles shown when the voltage selector switch is in the 120/240V position.
When two or more receptacles are used; prevent overloading by dividing the load between the two
power circuits.
The chart below shows the rated load in amperes that can be connected to each receptacle to balance
the generator.
Main Power Circuit Receptacles Powered by
Each Main Circuit
Power Distribution
Main Circuit 1 2 and 5 2+5=32.5 A Rated
Main Circuit 2 1 and 4 1+4=32.5 A Rated
The table shows the specifications when the 120/240V locking plug receptacle is used for 120V.
1Start the engine .
receptacles simultaneously. If you  require more 120V only power, then select the "120V only" position,
Do not exceed the current limit specified for any one receptacle. If an overloaded circuit causes the
The total rated ampere draw is 65A in 120V ONLY.
this will disable the 120/240V 30A twist lock plug.

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DC Operation
The DC terminals may ONLY be used for charging 12 volt automotive type batteries.
Connecting the battery cables:
1Before connecting the battery charging cables to a battery that is installed in a vehicle,
disconnect the vehicle ground battery cable from the battery negative () terminal.
ventilation when charging or using batteries. 
 Battery posts, terminals and related accessories contain lead and lead compounds. Wash hands
after handling.
2 Connect the positive () battery cable to the battery positive () terminal.
3 Connect the negative () battery cable to the battery negative () terminal.
4 Connect the plug of the battery cable to the generator DC receptacle.
5 Start the generator.
Do not start the vehicle while the battery charging cable is connected and the generator is running.
The vehicle or the generator may be damaged. An overloaded DC circuit, excessive current draw by
the battery, or a wiring problem will trip the DC circuit protector. If this happens, wait a few minutes
before pushing in the circuit protector to resume operation.
Disconnecting the battery cables:
1 Stop the engine.
2 Disconnect the plug of the battery cable to the generator DC receptacle
3 Disconnect the other end of the negative () battery cable from the battery negative ()
terminal.
4Disconnect the other end of the positive () battery cable from the battery positive ()
terminal.
 Batteries give off explosive gases; keep sparks, flames and cigarettes away. Provide adequate

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5Reconnect the vehicle ground battery cable to the battery negative () terminal.
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. Operation at an altitude that differs from that at which this engine was certified, for extended
periods of time, may increase emissions. High altitude performance can be improved by specific
modifications to the carburetor. If you always operate your generator at altitudes above 5,000 feet
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 1,000-foot (300-meter) increase in altitude. The effect of altitude on horsepower will be
greater than this if no carburetor modification is made.
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 5,000 feet (1,500 meters) with a modified
carburetor may cause the engine to overheat and result in serious engine damage.
MAINTENANCE
The Importance of Maintenance.
Good maintenance is essential for safe, economical, and trouble-free operation. It will also help
reduce air pollution.
Improper maintenance, or failure to correct a problem before operation, can cause a malfunction in
which you can be seriously injured or killed.
Always follow the inspection and maintenance recommendations and schedules in this instruction
manual.
Maintenance Safety
Make sure the engine is off before you begin any maintenance or repairs.
Let the engine and exhaust system cool before touching.
To reduce the possibility of fire or explosion, be careful when working around gasoline. Use only
a nonflammable solvent, not gasoline, to clean parts. Keep cigarettes, sparks, and flames away
from all fuel-related parts.
Maintenance Schedule
Remember that this schedule is based on the assumption that your machine will be used for its
designed purpose. Sustained high-load or high-temperature operation, or use in unusually wet or dusty
conditions, will require more frequent service.
(1,500 meters), have a dealer perform this carburetor modification. This engine, when operated at

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REGULAR SERVICE PERIOD2 Before
each
use
First
month
or 20
Hrs.
Every3
months
or 50
Hrs.
Every6
months
or 100
Hrs.
Every
year or
300
Hrs
ITEM
Performed at every indicated month or
operating hour interval, whichever
comes first.
 Engine oil Check 
Change  
 Air cleaner Check 
Clean (1)
 Sediment cup Clean 
 Spark plug Clean-Adjust 
Replace 
 Spark arrester Clean 
 Idle speed Check-Adjust 
 Valve clearance Check-Adjust 
 Combustion
chamber Clean After every 500 Hrs.
 Fuel tank and
filter
Clean 
 Fuel tube Check Every 2 years(replace if necessary)
(1) Service more frequently when used in dusty areas.
(2) For commercial use, log hours of operation to determine proper maintenance intervals.
Engine Oil Change
Drain the oil while the engine is warm to assure rapid and complete draining.
1 Remove the drain plug and sealing washer, remove the oil filler cap, and drain the oil.
2 Reinstall the drain plug and sealing washer. Tighten the plug securely.
3 Refill with the recommended oil and check the oil level.
Wash your hands with soap and water after handling used oil.
Air Cleaner Service
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

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areas.
Never run the generator without the air filter. Rapid engine wear will result.
1 Unsnap the air cleaner cover clips, remove the air cleaner cover, and remove the element.
2 Wash the air cleaner element in a solution of household detergent and warm water, then rinse
thoroughly, or wash in nonflammable or high flashpoint solvent. Allow the air cleaner
element to dry thoroughly.
3 Soak the air cleaner element in clean engine oil and squeeze out the excess oil. The engine
will smoke during initial startup if too much oil is left in the air cleaner element.
4 Reinstall the air cleaner element and the cover.
Fuel Sediment Cup Cleaning
The sediment cup prevents dirt or water, which may be
in the fuel tank from entering the carburetor. If
the engine has not been running for a long time, the
sediment cup should be cleaned.
1 Turn the fuel valve lever to the OFF position.
Remove the sediment cup, O-ring, and filter.
2 Clean the sediment cup, O-ring, and filter in
nonflammable or high flash point solvent.
4 Turn the fuel valve lever ON and check for leaks.
Spark Plug Service
To ensure proper engine operation, the spark plug must be properly gapped and free of deposits.
If the engine has been running, the muffler will be very hot. Be careful not to touch the muffler.
1 Remove the spark plug cap.
2 Clean any dirt from around the spark plug base.
3 Use a spark plug wrench to remove the spark plug.
4 Visually inspect the spark plug. Discard it if the insulator is cracked, chipped or fouled.
5 Measure the plug gap with a feeler gauge. Correct as necessary by carefully bending the side
electrode.
3 Reinstall the filter, O-ring, and sediment cup.

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The gap should be: 0.028 0.031 in (0.70 0.80 mm)
6Check that the spark plug washer is in good condition, and
thread the spark plug in by hand to prevent cross-threading.
7After the spark plug is seated, tighten with a spark plug
wrench to compress the washer.
If installing a new spark plug, tighten 1/2 turn after the spark plug
seats to compress the washer. If reinstalling a used spark plug,
tighten 1/8 1/4 turn after the spark plug seats to compress the
washer.
The spark plug must be securely tightened. An improperly tightened spark plug can become very hot
and could damage the engine. Never use spark plugs which have an improper heat range.
STORAGE
Before storing the unit for an extended period:
 Be sure the storage area is free of excessive humidity and dust.
 Service according to the table below:
STORAGE
TIME
TO PREVENT HARD STARTING RECOMMENDED
SERVICE PROCEDURE
Less than 1
month No preparation required
1 to 2 months Fill with fresh gasoline and add gasoline conditioner.
2 months to 1
year
Fill with fresh gasoline and add gasoline conditioner. Drain the
carburetor float bowl. Drain the fuel sediment cup.
1 year or more
Fill with fresh gasoline and add gasoline conditioner. Drain the
carburetor float bowl. Drain the fuel sediment cup. Remove the
spark plug and put a tablespoon of engine oil into the cylinder head.
Pull recoil starter slowly to distribute the oil evenly in the cylinder.
Reinstall the spark plug. Change the engine oil.
After removal from storage, drain the stored gasoline into a suitable
container and fill with fresh gasoline before starting.

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TROUBLESHOOTING
Note: Troubleshooting problems may have similar causes and solutions.
PROBLEM POSSIBLE CAUSE SOLUTION
The engine
will not start
Is there fuel in the tank? Refill the fuel tank.
Is there enough oil in the
engine? Add the recommended oil.
Is the spark plug in good
condition?
Readjust gap and dry the spark plug.
Replace it if necessary.
Is the fuel reaching the
carburetor? Clean the fuel sediment cup.
No electricity
at the AC
receptacles
Is the AC circuit breaker ON? Turn the AC circuit breaker ON.
Check the electrical appliance
or equipment for any defects.
Replace the electrical appliance or
equipment. Take the electrical
appliance or equipment to an
electrical shop for repair.

20
EASY START INSTRUCTION
1) Fill with at least 1 gallon of fresh gas or until gas shows on the gauge.
2) Fill engine case with (10-30w) motor oil until you can see oil reach the top of
3) Turn on/off switch to ON position (located on control panel).
4) Turn fuel control valve to ON position.
5) Pull (CHOKE) lever out to the choke on position. Turn Key to Start or pull Recoil
Start Rope (complete easy pulls) until generator starts.
6) After starting push (CHOKE) level in (slowly). If engine dies complete the above
procedures. If Choke is left on and engine dies your spark plug could be fouled and
may need to be cleaned.
7) Before plugging load into receptacles make sure you Circuit Breaker Switch is in the
ON position.
dipstick threads. Replace oil cap/dipstick, low oil kill switch is now activated.