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DEK 6500EL - User Manual

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DEK® is registered trademark of GXi Outdoor Power, LLC Clayton, NC 27520 USA.
No part of this publication can be printed or copied without written permission.
1 of 16 Rev. 9/2011
Heavy Duty Power Equipment
®
Owners Manual
This manual contains important safety instructions for gasoline
generator models: 4550Pro, 5650, 6500, 6500EL, 7550EL Pro that should be followed during installation and
maintenance of the generator and batteries
READ SAFETY WARNINGS AND OPERATING INSTRUCTIONS CAREFULLY, SAVE THESE INSTRUCTIONS.
Contents:
1. Tools and Accessories
2. DEK Product Lines
3. Missing Parts Request Form
4. Warnings
5. Warnings and Specifications
6. Component Identification
7. Wheel Kit Assembly & Commissioning the Battery
8. Commissioning the Battery
9. Controls
10. Operating the Generator
11. Operating the Generator
12. Maintenance
13. Maintenance
14. Transporting and Storage
15. Troubleshooting
16. Warranty and Service
HAVE QUESTIONS OR NEED HELP?
call 24 hrs / 7-days a week help-line: [1] 919-550-3221
or go to www.DEKPowerUSA.com
DO NOT RETURN THIS GENERATOR
TO THE STORE!
Date of Purchase: _______________________
Location of Purchase: _______________________
Serial #: _______________________
Have the following information ready when you call us:
®

Questions and Answers

  • J
    John ReynoldsAug 29, 2025
    Why is fuel leaking from my DEK Inverter's carburetor?
    • K
      kimberlyjenkinsAug 29, 2025
      If fuel is leaking out of the carburetor of your DEK Inverter, the fuel drain screw might be loose; tighten it. Alternatively, the carburetor float seat may not be seating properly; flush it with clean fuel.
  • R
    Robert Murray IVAug 28, 2025
    Why is my DEK Inverter engine running rough?
    • A
      Amber HuffmanAug 28, 2025
      If your DEK Inverter engine runs roughly, vibrates, or oscillates, here are some potential causes and solutions: Ensure the choke is fully open by pushing the choke lever in. Reduce the load on the generator by disconnecting some appliances if you're overloading it. Check the air filter and clean it if it's dirty. A clogged fuel filter can also cause this issue, so clean it. If the vacuum check valve has failed, replace it. If the head valve timing is off, it is recommended to send it to a service center.
  • A
    Amy GarnerAug 27, 2025
    What to do if DEK Inverter starts then shuts off quickly?
    • W
      whitekimAug 27, 2025
      If your DEK Inverter engine starts but shuts off quickly, check the following: Ensure the oil level is adequate by consulting the owner's manual for the correct oil capacity. Verify that the fuel valve is open and the tank isn't empty. Inspect the spark plug for fouling or failure, and clean or replace it as necessary. A failed vacuum check valve could also be the problem; replace it, and call DEK for the replacement procedure.
  • L
    Luke WatsonAug 27, 2025
    DEK Inverter shows voltage but no power to devices, what's wrong?
    • S
      Sandra BakerAug 27, 2025
      If your DEK Inverter shows both 240VAC and 120VAC on the voltmeter, but connected devices aren't receiving power, here's what you can check: First, try a different extension cord or power strip, as the current one may be faulty. Ensure the device you're using hasn't failed by testing with a different light bulb or device. Also, verify that the push-button breaker hasn't tripped. Finally, check the GFCI; if it's tripped, push the red reset button firmly, and if it has failed, replace it with any standard GFCI or household outlet.
  • K
    Kristen MeadowsAug 25, 2025
    Why does my DEK Inverter engine bog down under load?
    • N
      Nathan SchmittAug 26, 2025
      If your DEK Inverter engine runs but bogs down under load, consider these potential causes: The choke might be open, so push the choke lever in. You might be overloading the generator, in which case you should disconnect some appliances or devices. A dirty air filter or a clogged fuel filter could also be the culprit, so clean the air filter and clean the fuel filter.
  • B
    Brian KingAug 25, 2025
    What to do if my DEK Inverter shows voltage but no outlet power?
    • R
      Robert PerezAug 25, 2025
      If your DEK Inverter's voltmeter shows 120 VAC but the outlets aren't providing power, the issue might stem from a faulty extension cord or power strip; try using a different one. Also, check the push-button breaker and reset it if it's tripped by disconnecting all loads and pushing the reset button. Similarly, examine the GFCI; if tripped, disconnect all loads and firmly push the red reset button. If the GFCI has failed, consider replacing it with any standard GFCI or household outlet.

Summary

Owners Manual Introduction and Support

Generator Model Identification

Lists the specific gasoline generator models covered by this manual.

Customer Support Information

Provides a helpline number and website for questions and assistance.

Important Customer Notice

Instructs users not to return the generator to the store for issues.

DEK Product Lines and Accessories

Universal Generator Cover

Describes a protective cover for DEK generators.

SAE 10 W30 Motor Oil

Recommends specific engine oil for DEK generators.

Generator Adapters and Extension Cords

Details adapters and extension cords for generator use.

Fuel Stabilizer for Storage

Explains the use of fuel stabilizer for fuel freshness.

Additional DEK Products and Parts Service

Other DEK Heavy Duty Equipment

Showcases other DEK equipment like mowers and pressure washers.

Missing Parts Request Form and Contact

Provides a form and contact details for requesting missing parts.

Critical Safety Warnings and Hazards

California Proposition 65 Warning

Alerts about chemicals in exhaust known to cause cancer or reproductive harm.

Carbon Monoxide Gas Hazard

Warns about the deadly, odorless gas produced by the generator exhaust.

Electrocution Hazard Precautions

Advises on preventing electrical shock, especially in wet conditions.

Building Electrical Connection Safety

Emphasizes professional installation for building electrical connections.

Operating Precautions and Specifications

AC Application Safety Guidelines

Guidelines for connecting appliances to ensure safety and prevent damage.

Maintenance and Operation Safety

Stresses following maintenance and safety recommendations.

Product Specifications Table

Detailed technical data for different generator models.

Component Identification

Generator Exterior Components

Identifies key parts on the generator's exterior.

Control Panel and Outlets

Locates and labels all controls, receptacles, and indicators.

Generator Chassis and Engine Parts

Identifies components related to the generator's frame and engine.

Assembly and Battery Commissioning

Wheel Kit Assembly Instructions

Step-by-step guide for attaching the wheel kit.

Commissioning the Battery

Instructions for connecting and maintaining the optional battery.

DC Terminals and Battery Cable Management

DC Terminals and Charging Cables

Describes the 12V DC receptacle and battery charging connections.

Connecting and Disconnecting Battery Cables

Detailed steps for safely connecting and disconnecting the battery.

Engine Controls and Alerts

Choke, Fuel Valve, and Oil Alert System

Explains the function and operation of choke, fuel valve, and oil alert.

Starting Systems and Ground Terminal

Details recoil and electric start methods and ground terminal usage.

Operating the Generator - Initial Steps

Carbon Monoxide Safety During Operation

Reiterates critical safety advice for generator use.

Pre-Operation Checks

Steps for checking oil and fuel levels before starting.

Fueling and Ethanol Warning

Guidelines for safe refueling and warnings about ethanol fuel.

Generator Operation and Load Application

Starting and Warming Up the Generator

Steps for starting the engine and allowing it to warm up.

Applying Electrical Loads

How to connect and manage appliances for optimal performance.

Stopping the Generator

Procedures for safely shutting down the generator.

Routine Maintenance

Importance of Maintenance and Schedule

Explains why maintenance is crucial and references the schedule.

Engine Oil Change Procedure

Step-by-step guide for changing the engine oil.

Air Cleaner Service

Instructions for cleaning or replacing the air cleaner element.

Spark Plug Service

Details on inspecting, cleaning, and replacing the spark plug.

Maintenance Details and Transport

Spark Plug Gapping and Installation

Proper methods for checking spark plug gap and installation.

Optional Spark Arrestor Maintenance

Procedure for cleaning the spark arrestor.

Starter Motor Fuse Replacement

Information on how to replace a blown starter fuse.

Transporting and Storing the Generator

Safety guidelines and procedures for moving and storing the generator.

Troubleshooting Common Issues

Engine Not Starting or Catching

Solutions for ignition and fuel delivery problems.

Recoil Starter Problems

Troubleshooting for hard-to-pull or non-retracting recoil starters.

Engine Shuts Off Prematurely

Addresses issues causing the engine to stop shortly after starting.

Rough Engine Operation or Bogging

Solutions for vibrating engines or performance loss under load.

No Power to Outlets

Diagnosing why outlets are not providing power despite engine running.

Advanced Troubleshooting

Power Output and Voltage Issues

Diagnosing problems with voltage output or no power to devices.

Leaks and Starting Difficulties

Troubleshooting fuel or oil leaks and recoil issues.

Limited Warranty and Service Information

Warranty Coverage and Qualification

Details what is covered, for how long, and how to qualify.

Obtaining Service and Warranty Exclusions

Procedures for getting service and limitations of the warranty.

DEK 6500EL Specifications

General IconGeneral
Starting Watts6500
Running Watts5500
Fuel TypeGasoline
Displacement389cc
Fuel Tank Capacity6.6 Gallons
Engine Type4-stroke, OHV
Starting SystemElectric Start
AC Output120V/240V
DC Output12V/8.3A

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