MODEL GN9500
9500W PORTABLE
GENERATOR
Instruction Manual
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
TECHSUPPORT@WENPRODUCTS.COM1-800-232-1195 (M-F 8AM-5PM CST)
IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability,
ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged,
trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use
your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.
For replacement parts and the most up-to-date instruction manuals, visit WENPRODUCTS.COM
CONTENTS
WELCOME 3
Specifications ................................................................................................... 3
Introduction ..................................................................................................... 4
SAFETY 5
Safety Information ........................................................................................... 5
Generator Safety Warnings .............................................................................. 6
BEFORE OPERATING 9
Unpacking & Packing List ................................................................................ 9
Know Your Generator ..................................................................................... 10
Assembly & Adjustments ............................................................................... 12
Generator Preparation .................................................................................... 13
OPERATION & MAINTENANCE 18
Starting Your Generator ................................................................................. 18
Using Your Generator ..................................................................................... 22
Shutting Off Your Generator ........................................................................... 26
Maintenance ................................................................................................... 27
Transportation & Storage ............................................................................... 33
Troubleshooting Guide ................................................................................... 34
Wiring Diagram .............................................................................................. 36
Exploded View & Parts List ............................................................................ 37
Warranty Statement ....................................................................................... 43
To purchase accessories for your tool, visit WENPRODUCTS.COM
Generator Cover (Model 56409), and High Altitude Kit (Model GN9500-HA36 & GN9500-HA68)
2
SPECIFICATIONS
GENERATOR
Rated Wattage 7500 Watts
Surge Wattage 9500 Watts
Rated Voltage
Rated Amperage
Phase Single
Frequency 60Hz
Product Dimensions
Product Net Weight 194 lbs (88 KG)
AC: 120V / 240V
DC: 12V
AC: 60A / 30A
DC: 8.3A
Length: 27.3 Inches
Width: 20.8 Inches
Height: 22.2 Inches
ENGINE
Engine Type 4 Stroke, OHV, Single Cylinder with Forced Air Cooling System
Engine Displacement 420cc
Engine Speed 3600 RPM
Fuel Tank Capacity 6 gallons (23 L)
Oil Capacity 37.2 fl. oz. (1.1 L)
Half-Load Run Time 7.5 Hours
Lubrication System Splash Lubrication
Spark Plug Type Torch F6TC / NGK BP6ES
Spark Plug Gap 0.6 - 0.8mm (0.024 - 0.031 in)
Spark Plug Torque 15 - 20 Nm (11.06 - 14.75 ft-lb)
Battery 12V, 9Ah, lead-acid
3
INTRODUCTION
Thanks for purchasing the WEN 9500-Watt Portable Generator. Refer to the illustration below for the location of
the serial number on the side of the engine. Record the generator information in the spaces provided below. If assistance for information or service is required, please contact customer service by calling 1-800-232-1195, M-F 8-5
CST; you will be asked to provide the following generator information when calling.
Generator Model Number: GN9500
Date of Purchase: ______________________________________________
Purchased From: _______________________________________________
Serial Number: ________________________________________________
Serial Number
SERVICE RECORD
Record the service dates of your generator in the chart below. Please perform maintenance checks and operations
according to the “Maintenance” section of the manual.
Service Record Date Date Date Date Date Date
Change Oil
Change Spark Plug
Clean Fuel Tank
Clean Air Cleaner
Clean Spark Arrestor
TO MAXIMIZE THE LIFESPAN OF YOUR GENERATOR: We recommend running your generator at least once a
month for 20 to 30 minutes. Start the generator according to the instructions and plug a small load in to make
sure the outlet is producing electricity.
4
SAFETY INFORMATION
WARNING! Before operating the generator, make sure to read all safety warnings and all instructions. Failure
to follow the warnings and instructions may result in electric shock, fire or serious injury.
SAFETY INTRODUCTION
Safety is a combination of common sense, staying alert, and knowing how your tool works. This manual contains
important information regarding the generator’s potential safety concerns, as well as preparation, operation, and
maintenance instructions. Before operating this generator, be sure to read and observe all warnings and instructions
both on the generator labels and in this instruction manual. Failure to follow all instructions listed below may result
in personal injury.
NOTE: The following safety information is not meant to cover all possible conditions and situations that may occur.
WEN reserves the right to change this product and specifications at any time without prior notice.
At WEN, we are continuously improving our products. If you find that your tool does not exactly match this manual,
please visit wenproducts.com for the most up-to-date manual or contact customer service at 1-800-232-1195, M-F
8-5 CST.
Keep this manual available to all users during the entire life of the tool and review it frequently to maximize
safety for both yourself and others.
SAVE THESE SAFETY INSTRUCTIONS.
SAFETY SYMBOLS
The purpose of following safety symbols is to attract your attention to possible dangers. The safety symbols, and
their explanations, deserve your careful attention and understanding. The safety warnings do not by themselves
eliminate any danger. The instructions or warnings they give are not substitutes for proper accident prevention
measures.
DANGER: indicates a hazard, which, if not avoided, will result in death or serious injury.
WARNING: indicates a hazard, which, if not avoided, could result in death or serious injury.
CAUTION: indicates a hazard, which, if not avoided, might result in minor or moderate injury.
CAUTION! when used without the alert symbol, indicates a situation that could result in damage to the machine.
NOTICE REGARDING EMISSIONS
Engines that are certified to comply with U.S. EPA emission regulations for SORE (Small Off Road Equipment), are
certified to operate on regular unleaded gasoline, and may include the following emission control systems: (EM)
Engine Modifications and (TWC) Three-Way Catalyst (if so equipped).
QUESTIONS? PROBLEMS?
In order to answer questions and solve problems in the most efficient and speedy manner, contact customer
service at 1-800-232-1195, M-F 8-5 CST or email techsupport@wenproducts.com.
5
GENERATOR SAFETY WARNINGS
DANGER! CARBON MONOXIDE
Using a generator indoors CAN KILL YOU IN MINUTES. Generator exhaust contains carbon monoxide (CO). This
is a poison gas you cannot see or smell. If you can smell the generator exhaust, you are breathing CO. But even
if you cannot smell the exhaust, you could be breathing CO.
NEVER use a generator inside homes, garages, crawl spaces, or other partially enclosed areas. Deadly levels
of carbon monoxide can build up in these areas. Using a fan or opening windows and doors does NOT supply
enough fresh air. ONLY use a generator outside and far away from windows, doors, and vents. These openings
can pull in generator exhaust.
Even if you use a generator correctly, CO may leak into the home. ALWAYS use a battery-powered or battery-
backup CO alarm in the home. If you start to feel sick, dizzy, or weak after the generator has been running, move
to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide poisoning.
WARNING! RISK OF EXPLOSION. HIGHLY FLAMMABLE: This generator may emit highly flammable and
explosive gasoline vapors, which can cause severe burns or even death, if ignited. A nearby open flame can lead
to explosion even if not directly in contact with gasoline.
• Do not operate near open flame, heat, or any other ignition source. Do not smoke near the generator.
• Always operate on a firm, level surface.
• Always turn generator off before refueling. Allow generator to cool for at least 2 minutes before removing
fuel cap. Loosen cap slowly to relieve pressure in tank.
• Do not overfill fuel tank. Gasoline may expand during operation. Do not fill to the top of the tank. Allow for
expansion. Always check for spilled fuel before operating.
• If fuel spills, move the generator at least 30 feet away from the spill and wipe clean any spilled fuel before
starting the engine.
• Empty fuel tank before storing or transporting the generator.
WARNING! If this generator is used as a supply for a building’s wiring system, the generator must be in-
stalled by a qualified electrician and connected to a transfer switch as a separately derived system in accordance
with all applicable laws and electrical codes and the National Electrical Code, NFPA 70. The generator shall be
connected to a transfer switch that switches all conductors excluding the equipment grounding conductor. The
frame of the generator shall be connected to an approved grounding electrode.
CALIFORNIA PROPOSITION 65 WARNING: This product contains chemicals and produces exhaust known
to the State of California to cause cancer, birth defects and other reproductive harm. For more information, visit
www.P65Warnings.ca.gov
6
GENERATOR SAFETY WARNINGS
WARNING! Do not let comfort or familiarity with the product replace strict adherence to product safety rules.
Failure to follow the safety instructions may result in serious personal injury.
OPERATING ENVIRONMENT
1. Using a generator indoors can kill you in minutes.
Only use a generator outside and far away from windows, doors and vents.
2. Do not smoke near the generator.
3. Do not operate near open flame, heat, or flammable
materials. This generator may emit highly flammable
and explosive gasoline vapors, which can cause severe
burns or even death if ignited. A nearby open flame can
lead to an explosion even if it isn’t directly in contact with
gasoline.
4. Do not expose the generator to rainy or wet con-
ditions; doing so significantly increases the risk of
electrical shock. Never handle the generator, electronic
devices, or any cord while standing in water, while barefoot, or when hands or feet are wet.
5. Always operate the generator on a dry, firm, level
surface.
6. The generator should have at least 5 feet of clearance from buildings or other equipment during operation.
7. Do not allow children or non-qualified persons to
operate the generator.
3. If any part of the generator, electrical device or power cord is broken, damaged, or defective, make sure
it is repaired or replaced before operation. Service
should only be performed by a qualified technician. Do
not use receptacles or cords that show signs of damage,
such as broken or cracked insulation.
4. Use a ground fault circuit interrupter (GFCI) in highly
conductive areas such as metal decking or steel work.
Extension cords with in-line GFCIs are recommended for
these operations to maximize safety.
5. If connecting the generator to a building’s electrical
system for standby power, you MUST consult a qualified electrician and install a transfer switch. Such
connections must comply with local electrical laws and
codes. Failure to comply can create a back-feed, which
may result in serious injury or death to utility workers.
6. Never modify the generator in any way. Modifying
or using the machine for any other purpose for which it
is not designed may result in serious injuries, machine
damage and voiding of the warranty.
GENERATOR OPERATION
1. Only use the generator for its intended purposes.
Modifying or using the generator for operations for
which it was not designed may cause hazards and personal injury.
GENERATOR PREPARATION
1. Always ground the generator before using it to maximize safety (see “Ground the Generator” section).
2. Do not overfill fuel tank, as gasoline may expand
during operation. Do not fill to the very top of the tank.
Leave room for gasoline expansion. Always check for
spilled fuel before operating.
2. Do not touch bare wires or receptacles (outlets).
3. Do not exceed the wattage capacity of the generator
by plugging in more electrical devices than the unit
can handle. This could damage the generator and/or
connected electrical devices. Check the operating voltage and frequency requirements of all electrical devices
prior to plugging them into the generator.
Generator safety warnings continue on the next page.
7
GENERATOR SAFETY WARNINGS
WARNING! Do not let comfort or familiarity with the product replace strict adherence to product safety rules.
Failure to follow the safety instructions may result in serious personal injury.
TO MAXIMIZE THE LIFESPAN OF YOUR GENERATOR: We recommend running your generator at least once a
month for 20 to 30 minutes. Start the generator according to the instructions and plug a small load in to make
sure the outlet is producing electricity. If you do not run it often, it will greatly shorten the generator’s lifespan
and void the warranty.
4. Allow generator to run for several minutes before
connecting electrical devices. Do not start or stop engine with electrical devices plugged in to the receptacles.
Failure to do so could damage the generator and/or connected electrical devices.
5. Do not turn on electrical devices until after they are
connected to the generator.
6. Generators vibrate in normal use. During and after
the use of the generator, inspect both the generator as
well as extension and power supply cords for damage
resulting from vibration.
7. Do not touch hot parts. This generator produces heat
when running. Temperatures near exhaust can exceed
150ºF (65ºC). Allow generator to cool down after use before touching engine or areas of the generator that become hot during use.
8. Turn off all connected electrical devices before stop-
ping the generator.
9. Always turn generator off before refueling. Allow
generator to cool for at least 2 minutes before removing
fuel cap. Loosen cap slowly to relieve pressure in tank.
10. Turn the engine switch to “OFF” position when the
engine is not running.
11. Empty fuel tank before storing or transporting the
generator. Do not store generator or gasoline near fur-
naces, water heaters, or any other appliances that produce heat or have automatic ignitions. Store the generator and fuel away from sparks, open flames, pilot lights,
heat and other sources of ignition.
12. Always wash hands after handling generator.
CAUTION: Misuse of this generator can damage it or
shorten its lifespan.
8
UNPACKING & PACKING LIST
UNPACKING
With the help of a friend or trustworthy foe, such as one of your in-laws, carefully remove the generator from the
packaging and place it on a sturdy, flat surface. Make sure to take out all contents and accessories. Do not discard
the packaging until everything is removed. Check the packing list below to make sure you have all of the parts and
accessories. If any part is missing or broken, please contact customer service at 1-800-232-1195 (M-F 8-5 CST),
or email techsupport@wenproducts.com.
PACKING LIST
Components Support Bracket Assembly Parts
Hex Bolt (2)
Support Bracket (1)
Generator (1)
Wheel Assembly Parts
Wheel (2)
Wheel Axle Pin (2)
Washer (2)
R-Clip (2)
Hex Nut (2)
Handle Assembly Parts Spark Plug Tools
Handle Pin (2)
Wrench (1)
Push Handle (2)
Handle (1)
R-Clip (2)
9
KNOW YOUR GENERATOR
TOOL PURPOSE
Generators provide you with power when and where you need it most. Refer to the following diagrams to become
familiarized with all the parts and controls of your Generator. The components will be referred to later in the manual
for assembly and operation instructions.
GENERATOR
Fuel Cap
Fuel Tank
Key Start
Control Panel
Push Handle
Battery
Wheel
Fuel Gauge
Muffler
End Cover
Cylinder Head
Air Filter
10
Fuel Valve
Choke Lever
Recoil Start
Support Bracket
CONTROL PANEL
KNOW YOUR GENERATOR
1
2
3
101112 13
54 6
789
1. Key Start
ON, OFF. START
2. Pairing Light
Indicates pairing of the remote to your generator. See
"USING THE REMOTE START FUNCTION" on page 20.
3. 12V DC Outlet
4. 5-20R Duplex Circuit Breakers (20A)
5. Multi-meter
Displays voltage, frequency, total runtime (HHHH), and
session runtime (HH:MM). Press the MODE button to
switch between displays.
6. AC 120V/240V NEMA L14-30R Outlet
7. Grounding Nut
Ground generator to reduce risk of electric shock.
8. AC Circuit Breaker (30A)
9. AC 120V NEMA TT-30R RV Outlet
10. AC 120V NEMA 5-20V Duplex Outlet
11. DC Circuit Breaker (10A)
12. Remote Pairing Button
Press to pair the remote to your generator. See "USING
REMOTE-START FUNCTION" on page 20.
13. Remote Power Button
Press to reset remote pairing. See "USING REMOTESTART FUNCTION" on page 20.
11
ASSEMBLY & ADJUSTMENTS
WARNING! Do not plug in or turn on the tool until
it is fully assembled according to the instructions. Read
through and become familiarized with the following procedures of handling and adjusting your tool. Failure to
follow the safety instructions may result in serious personal injury.
INSTALLING THE WHEELS
1. Prepare a set of blocks on level ground (a 4×4 block of
wood works well). Place the generator on the blocks.
2. Place the wheel axle pin (Fig. 1 - 1) and washer (Fig.
1 - 2) through the wheel (Fig. 1 - 3) and mounting lug hole
(Fig. 1 - 4). Secure it with the R-clip (Fig. 1 - 5).
INSTALLING THE SUPPORT BRACKET
1. Line up the support bracket with the corresponding
holes on the bottom of the generator.
2. Secure the support bracket (Fig. 2 - 1) to the generator
using two M8x16 bolts (Fig. 2 - 2) and two M8 nuts (Fig.
2 - 3).
Fig. 1
5
4
3
2
1
Fig. 2
3
INSTALLING THE HANDLES
1. Place the handle pin (Fig. 3 - 1) through the handle (Fig.
3 - 2) and the generator frame (Fig. 3 - 3). Secure it with the
R-clip (Fig. 3 - 4).
After completing the above assembly,
the generator is ready for preparation.
1
2
Fig. 3
1
2
4
3
12
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