Harbor Freight Tools 61725 Product manual
Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference.
13,500 WATT
PORTABLE
GENERATOR
11,000 RUNNING WATTS
13,500 PEAK WATTS
REV 15a
Using a generator indoors CAN
KILL YOU IN MINUTES.
Generator exhaust contains
carbon monoxide. This is a poison
you cannot see or smell.
NEVER use inside
a home or garage,
EVEN IF doors and
windows are open.
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright© 2013 by Harbor Freight Tools®. All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in
any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly and service may not be included.
Only use OUTSIDE
and far away from
windows, doors,
and vents.
Visit our website at: http://www.harborfreight.com
Email our technical support at: productsupport@harborfreight.com
Email our engine support at: predator@harborfreight.com
ITEM 61725
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Table of Contents
Specifications ............................................. 2
Safety ......................................................... 3
Setup .......................................................... 8
Operation ................................................... 16
Specifications
Generator
Displacement 670cc
Engine Type
Cooling System Forced air cooled
Fuel
Engine Oil
Run Time @ 50% Load
with full tank
Sound Level at 3 feet 78 dB
Bore x Stroke 78 mm x 70 mm
Compression Ratio 7.93:1
Rotation viewed from PTO
(power takeoff - the output shaft)
Spark Plug
Valve Clearance
Speed Idle 1800 RPM
Output
Receptacles See Figure A: Control Panel on page 8
Type
Capacity 7 Gallon
Type SAE
Capacity 2 Quart
Type
Gap 0.7 - 0.8 mm
Intake 0.10 - 0.15 mm
Exhaust 0.15 - 0.20 mm
Maintenance .............................................. 20
Troubleshooting ......................................... 24
Warranties ................................................. 26
Parts Lists and Diagrams .......................... 28
120/240VAC, 60Hz, 1 Phase
11,000W Rated
13,500W Maximum
Horizontal Dual Cylinder
4-stroke
87+ octane stabilizer treated
unleaded gasoline
10W-30 above 32° F
5W30 at 32° F or below
SJ class oil
7.5 hr.
Counterclockwise
NGK® BP-6ES
NHSP® / Torch® F6TC
The emissions control system for this Engine is warranted for standards set by the
U.S. Environmental Protection Agency. For warranty information, refer to the last pages of this manual.
Page 2 For technical questions, please call 1-888-866-5797. ITEM 61725
Symbol Definitions
WARNING SYMBOLS AND DEFINITIONS
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that
follow this symbol to avoid possible injury or death.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
SAFETYOPERATIONMAINTENANCE SETUP
Symbol Property or Statement
RPM
HP
Revolutions Per Minute
Horsepower
WARNING marking concerning
Risk of Eye Injury. Wear ANSI-approved
safety goggles with side shields.
Read the manual before
set-up and/or use.
WARNING marking concerning
Risk of Hearing Loss.
Wear hearing protection.
Symbol Property or Statement
WARNING marking concerning
Risk of Respiratory Injury.
Operate engine OUTSIDE and far away
from windows, doors, and vents.
WARNING marking concerning
Risk of Fire while handling fuel.
Do not smoke while handling fuel.
WARNING marking concerning
Risk of Fire.
Do not refuel while operating.
Keep flammable objects
away from engine.
IMPORTANT SAFETY INSTRUCTIONS
WARNING! Read all instructions.
Failure to follow all instructions listed below may result in fire, serious injury and/or DEATH.
The warnings and precautions discussed in this manual cannot cover all possible conditions and
situations that may occur. It must be understood by the operator that common sense and caution
are factors which cannot be built into this product, but must be supplied by the operator.
SAVE THESE INSTRUCTIONS
Page 3For technical questions, please call 1-888-866-5797.ITEM 61725
Set up Precautions
1. Gasoline fuel and fumes are flammable, and
potentially explosive. Use proper fuel storage
and handling procedures. Do not store fuel
SAFETY OPERATION MAINTENANCESETUP
or other flammable materials nearby.
2. Have multiple ABC class fire extinguishers nearby.
3. Operation of this equipment may create sparks that
can start fires around dry vegetation.
A spark arrestor may be required. The operator
should contact local fire agencies for laws or
regulations relating to fire prevention requirements.
4. Set up and use only on a flat, level,
well-ventilated surface.
5. All connections and conduits from the Generator
to the load must only be installed by trained and
licensed electricians, and in compliance with all
relevant local, state, and federal electrical codes and
standards, and other regulations where applicable.
6. 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.
7. Wear ANSI-approved safety goggles, heavy-duty
work gloves, and dust mask/respirator during set up.
8. Use only lubricants and fuel recommended
in the Specifications chart of this manual.
9. Improper connections to a building electrical system
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 the generator may explode, burn, or cause
fires when utility power is restored. Consult
the utility company and a qualified electrician if
intending to use the generator for back up power.
10. Do not operate the Generator before grounding.
The Generator must be earth-grounded
in accordance with all relevant electrical
codes and standards before operation.
Page 4 For technical questions, please call 1-888-866-5797. ITEM 61725
Operating Precautions
1. CARBON MONOXIDE HAZARD
Using a generator indoors
CAN KILL YOU IN MINUTES.
Generator exhaust contains
carbon monoxide. This is a poison
you cannot see or smell.
NEVER use inside a home or garage,
EVEN IF doors and windows are open.
Only use OUTSIDE and far away from windows,
doors, and vents.
2. Never use a generator indoors, including in
garages, basements, crawl spaces and sheds.
Opening doors and windows or using fans will NOT
prevent carbon monoxide build up in the home.
3. When using generators, keep them outdoors
and far away from open doors, windows,
and vents to avoid toxic levels of carbon
monoxide from building up indoors.
4. If you start to feel sick, dizzy, or weak while
using a generator, get to fresh air right away.
The carbon monoxide from generators can
quickly lead to full incapacitation and death.
5. Keep children away from the equipment,
especially while it is operating.
6. Keep all spectators at least six feet
from the Engine during operation.
7. Fire Hazard! Do not fill fuel tank while engine is
running. Do not operate if gasoline has been spilled.
Clean spilled gasoline before starting engine.
Do not operate near pilot light or open flame.
8. Do not touch engine during use.
Let engine cool down after use.
9. Never store fuel or other flammable
materials near the engine.
10. If the plugged in product operates abnormally
or unusually slow, immediately stop using the
generator as a power source. Read and adhere
to the instruction manual of the product to be
powered to make sure that it can be safely and
efficiently powered by a portable generator.
11. 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 potential for electrical shock.
12. Do not exceed the maximum power rating of the
generator. Make sure that the total electrical rating
of the all of the tools or appliances plugged into
the generator at the same time does not exceed
that of the generator. Check that the startup surge
will not be beyond the limit of the Generator.
13. Avoid substantially overloading which will trip
the circuit breaker. Slightly overloading the
generator may not trip the circuit breaker,
but will lead to premature generator failure.
14. Do not attempt to connect or disconnect
load connections while standing in water,
or on wet or soggy ground.
15. Do not touch electrically energized parts of
the Generator and interconnecting cables
or conductors with any part of the body, or
with any non-insulated conductive object.
16. Connect the Generator only to a load that is
compatible with the electrical characteristics
and rated capacities of the Generator.
17. Insulate all connections and disconnected wires.
18. Guard against electric shock. Prevent body contact
with grounded surfaces such as pipes,
radiators, ranges, and refrigerators.
19. Only use a suitable means of transport and
lifting devices with sufficient weight bearing
capacity when transporting the generator.
20. Secure the generator on transport vehicles to
prevent it from rolling, slipping, and tilting.
21. Industrial applications must follow
OSHA requirements.
22. Do not leave the generator unattended when it is
running. Turn off the generator (and remove safety
keys, if available) before leaving the work area.
23. The generator can produce high noise levels.
Prolonged exposure to noise levels
above 85 dBA is hazardous to hearing.
Wear ear protection when operating the generator
or when working nearby while it is operating.
24. Wear ANSI-approved safety glasses
and hearing protection during use.
25. People with pacemakers should consult their
physician(s) before use. Electromagnetic fields in
close proximity to a heart pacemaker could cause
pacemaker interference or pacemaker failure.
Caution is necessary when near the
engine’s magneto or recoil starter.
SAFETYOPERATIONMAINTENANCE SETUP
Page 5For technical questions, please call 1-888-866-5797.ITEM 61725
Operating Precautions (cont.)
26. Use only accessories that are recommended
by Harbor Freight Tools for your model.
Accessories that may be suitable for one
SAFETY OPERATION MAINTENANCESETUP
piece of equipment may become hazardous
when used on another piece of equipment.
27. Do not operate in explosive atmospheres,
such as in the presence of flammable
liquids, gases, or dust. Gasoline-powered
engines may ignite the dust or fumes.
28. Stay alert, watch what you are doing and
use common sense when operating this
generator. Do not use while tired or under the
influence of drugs, alcohol or medication.
29. Dress properly. Do not wear loose clothing or
jewelry. Keep hair, clothing and gloves away
from moving parts. Loose clothes, jewelry or
long hair can be caught in moving parts.
30. Parts, especially exhaust system components,
get very hot during use. Stay clear of hot parts.
31. Do not cover the generator during operation.
32. Keep the generator and surrounding
area clean at all times.
33. Use the equipment, accessories, etc., in
accordance with these instructions and in the
manner intended for the particular type of
equipment, taking into account the working
conditions and the work to be performed.
Use of the equipment for operations different from
those intended could result in a hazardous situation.
34. Do not operate the equipment with known
leaks in the engine’s fuel system.
35. WARNING: This product contains or, when
used, produces a chemical known to the State
of California to cause cancer and birth defects
or other reproductive harm. (California Health
& Safety Code § 25249.5, et seq.)
36. When spills of fuel or oil occur, they must be
cleaned up immediately. Dispose of fluids and
cleaning materials as per any local, state, or
federal codes and regulations. Store oil rags in
a bottom-ventilated, covered, metal container.
37. Keep hands and feet away from moving parts.
Do not reach over or across
equipment while operating.
38. Before use, check for misalignment or binding of
moving parts, breakage of parts, and any other
condition that may affect the equipment’s operation.
If damaged, have the equipment serviced
before using. Many accidents are caused
by poorly maintained equipment.
39. Use the correct equipment for the application.
Do not modify the equipment and do not use the
equipment for a purpose for which it is not intended.
Page 6 For technical questions, please call 1-888-866-5797. ITEM 61725
Service Precautions
1. Before service, maintenance, or cleaning:
a. Unplug all devices from the generator.
b. Turn the engine switch to its “OFF” position.
c. Allow the engine to completely cool.
d. Then, remove the spark plug cap
from the spark plug.
2. Keep all safety guards in place and in
proper working order. Safety guards include
muffler, air cleaner, mechanical guards,
and heat shields, among other guards.
3. Keep all electrical equipment clean and dry.
Replace any wiring where the insulation is
cracked, cut, abraded, or otherwise degraded.
Replace terminals that are worn, discolored, or
corroded. Keep terminals clean and tight.
4. Do not alter or adjust any part of the
equipment or its engine that is sealed by the
manufacturer or distributor. Only a qualified
service technician may adjust parts that may
increase or decrease governed engine speed.
5. Wear ANSI-approved safety goggles,
heavy-duty work gloves, and
dust mask/respirator during service.
6. Maintain labels and nameplates on the equipment.
These carry important information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
7. Have the equipment serviced by a qualified repair
person using only identical replacement parts.
This will ensure that the safety of the equipment
is maintained. Do not attempt any service or
maintenance procedures not explained in this
manual or any procedures that you are uncertain
about your ability to perform safely or correctly.
8. Store equipment out of the reach of children.
9. Follow scheduled engine and
equipment maintenance.
Refueling:
1. Do not smoke, or allow sparks, flames,
or other sources of ignition around the
equipment, especially when refuelling.
2. Do not refill the fuel tank while the
engine is running or hot.
3. Do not fill fuel tank to the top.
Leave a little room for the fuel to expand as needed.
4. Refuel in a well-ventilated area only.
5. Wipe up any spilled fuel and allow excess
to evaporate before starting engine.
To prevent FIRE, do not start the engine
while the smell of fuel hangs in the air.
SAFETYOPERATIONMAINTENANCE SETUP
SAVE THESE INSTRUCTIONS.
Page 7For technical questions, please call 1-888-866-5797.ITEM 61725
Set Up
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual
including all text under subheadings therein before set up or use of this product.
SAFETY OPERATION MAINTENANCESETUP
TO PREVENT SERIOUS INJURY:
Operate only with proper spark arrestor installed.
Operation of this equipment may create sparks that can start fires around dry vegetation.
A spark arrestor may be required.
The operator should contact local fire agencies for laws or regulations
relating to fire prevention requirements.
Components and Controls
Display
Switch
Choke Knob
120/240VAC
46A Breakers
Low Oil Indicator
12VDC Receptacle
and Breaker
120VAC 20A
Receptacles
120VAC 20A
Receptacles
and Breaker
Page 8 For technical questions, please call 1-888-866-5797. ITEM 61725
and Breaker
120VAC 30A
Receptacle
and Breaker
Figure A: Control Panel
120/240VAC
30A Receptacle
and Breakers
Ground
Terminal
120/240VAC 46A
Receptacle
Fuel Cap
Handle
Lifting Bracket
Figure B: Generator Front
Spark Plug
(1 of 2)
Control Panel
Battery
(sold separately)
SAFETYOPERATIONMAINTENANCE SETUP
Air Cleaner
Fuel Valve
Muffler
Oil Fill Plug
Dipstick
Spark Plug
(2 of 2)
Figure C: Generator Back
Page 9For technical questions, please call 1-888-866-5797.ITEM 61725
High Altitude Operation Above 3000 feet
WARNING! TO PREVENT SERIOUS INJURY FROM FIRE:
Follow instructions in a well-ventilated area away from ignition sources.
If the engine is hot from use, shut the engine off and wait for it to cool before proceeding. Do not smoke.
SAFETY OPERATION MAINTENANCESETUP
NOTICE: Warranty void if necessary adjustments are not made for high altitude use.
At high altitudes, the engine’s carburetor, governor, and any other parts that control the fuel-air ratio will need
to be adjusted by a qualified mechanic to allow efficient high-altitude use and to prevent damage to the engine
and any other devices used with this product. The fuel system on this engine may be influenced by operation
at higher altitudes. Proper operation can be ensured by installing an altitude kit at altitudes higher than 3000 ft.
above sea level. At elevations above 8000 ft, the engine may experience decreased performance, even with
the proper main jet. Operating this engine without the proper altitude kit installed may increase the engine’s
emissions and decrease fuel economy and performance. The kit should be installed by a qualified mechanic.
High Altitude Kit Parts List - A
Part Description Qty
A1 Left Main Jet 3000-6000 ft. 1
A2 Right Main Jet 3000-6000 ft. 1
A3 Left Main Jet 6000-8000 ft. 1
Disassembly
1. Turn off the engine.
2. Close the fuel valve.
3. Remove the Air Cleaner Top Knob (142a) and the
two Air Cleaner Front Knobs (102). See Figure D.
Air Cleaner
Top Knob (142a)
Air Cleaner
Front Knob
(102)
Part Description Qty
A4 Right Main Jet 6000-8000 ft. 1
137d Outer Bowl O-ring (replacement) 1
137e Inner Bowl O-ring (replacement) 1
4. Remove the Air Cleaner Front Cover (101),
pulling it up then out. See Figure E.
Air Cleaner
Front Cover (101)
Figure E: Remove Front Cover
Figure D: Remove Knobs
Page 10 For technical questions, please call 1-888-866-5797. ITEM 61725
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