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Predator Generator Won t Stay Running: (Solutions) In 2023

Predator Generator Won t Stay Running, Are you facing the issue of your Predator generator stopping frequently or not staying on for an extended period? Don’t worry; you are not alone in this.

Many people experience this problem with their generators, which can be frustrating and inconvenient, especially when you need a continuous power supply. In this article, we will discuss the reasons why your Predator generator won’t stay running and the troubleshooting steps to fix the issue.

predator generator won t stay running

Predator Generator Won t Stay Running

If you’re having trouble with your Predator generator not staying running, there could be a few possible reasons.

Here are a few things you could try:

  1. Check the fuel level: If the generator isn’t getting enough fuel, it may not stay running. Make sure there’s enough fuel in the tank and that the fuel valve is turned on.
  2. Check the oil level: Low oil levels can cause the generator to shut off automatically. Make sure the oil level is sufficient and that the oil sensor is functioning properly.
  3. Clean the air filter: A dirty air filter can restrict airflow and cause the generator to shut off. Remove and clean the air filter to see if this helps.
  4. Check the spark plug: A fouled or damaged spark plug can cause the generator to stop running. Check the spark plug and replace it if necessary.
  5. Check the carburetor: If the carburetor is dirty or clogged, it can cause the generator to stop running. Try cleaning the carburetor or having it professionally serviced.

If none of these steps solve the issue, it may be best to take the generator to a professional for further diagnosis and repair.

The Predator Generator

Before we dive into the troubleshooting steps, it is essential to understand how the Predator generator works. The generator produces electricity through an alternator, which is powered by a small gas engine. The alternator converts the mechanical energy produced by the engine into electrical energy.

The power produced is then used to power appliances, tools, or devices connected to the generator.

Why Your Predator Generator Won’t Stay Running?

Several reasons could cause your Predator generator to stop running or not stay on for long. Let’s look at some of the common issues.

Fuel Issues

Fuel is the primary source of energy for the generator. If the fuel supply is inadequate or contaminated, the generator may not run correctly or stop abruptly. Old or stale fuel can clog the fuel filter, carburetor, or fuel lines, reducing fuel flow to the engine.

Carburetor Problems

The carburetor is a vital component that regulates the fuel-air mixture in the engine. If the carburetor is clogged, dirty, or damaged, it can cause the generator to stall or stop running.

Air Filter Clogging

The air filter prevents dirt, dust, and debris from entering the engine. A clogged air filter restricts the airflow to the engine, reducing the engine’s power output and causing it to stall or stop running.

Spark Plug Malfunction

The spark plug ignites the fuel-air mixture inside the engine. A dirty or faulty spark plug can cause misfires or weak sparks, leading to engine stalling or shutdown.


Overloading the generator beyond its capacity can cause the engine to stall or stop running. The generator’s capacity is determined by its wattage output, which should match the total wattage of the devices connected to it.

Troubleshooting and Solutions

Now that we know the common reasons why a Predator generator won’t stay running let’s look at the troubleshooting steps to fix the issue.

Check the Fuel

Check the fuel level and quality. If the fuel is old or contaminated, drain the tank, and refill it with fresh fuel. Clean or replace the fuel filter if clogged. Also, check the fuel lines for any cracks or leaks.

Clean the Carburetor

If the fuel and air filters are clean, and the spark plug is functioning correctly, but the generator still won’t stay running, the issue may be with the carburetor. Over time, the carburetor can become clogged with dirt, debris, or stale gasoline, preventing the engine from getting enough fuel.

To clean the carburetor, follow these steps:

  1. Turn off the fuel valve and disconnect the fuel line from the carburetor.
  2. Remove the air filter and the carburetor cover to access the carburetor.
  3. Use a carburetor cleaner to spray and soak all the carburetor components, including the jets, passages, and float bowl.
  4. Use a soft brush or toothbrush to scrub away any dirt or debris.
  5. Reassemble the carburetor and the air filter and reconnect the fuel line.
  6. Start the generator and let it run for a few minutes to ensure proper carburetor function.

Cleaning the carburetor can be a complex task, and if you’re not familiar with engine mechanics, it’s best to seek the help of a professional.

Replace the Air Filter

Remove the air filter and clean it with compressed air or replace it if it’s too dirty or damaged. A clean air filter ensures optimal airflow to the engine, preventing stalling or shutdown.

Replace the Spark Plug

Remove the spark plug and inspect it for any damage or fouling. Replace the spark plug if it’s worn out, damaged, or covered in carbon deposits. A clean and functional spark plug ensures proper ignition of the fuel-air mixture, preventing engine stalling or shutdown.

Avoid Overloading

Make sure you don’t overload the generator beyond its capacity. Check the wattage output of the devices you are connecting to the generator and ensure it doesn’t exceed the generator’s capacity. Overloading the generator can cause the engine to stall or stop running.

People also ask

What would cause a generator to start but not stay running?

A generator that starts but doesn’t stay running may be caused by fuel problems, a dirty carburetor, or a faulty spark plug.

What would cause a generator to keep shutting off?

A generator that keeps shutting off can be caused by various issues such as low oil levels, dirty air or fuel filters, a faulty spark plug, a clogged carburetor, or a malfunctioning automatic voltage regulator.

Why does my generator run for 20 minutes and then shut off?

If your generator runs for 20 minutes and then shuts off, it may be due to several reasons. One common cause is an overheated engine.

Running the generator continuously for an extended period can cause the engine to overheat, and the built-in safety mechanism will shut off the generator to prevent damage.

Other potential causes include low oil levels, a clogged fuel filter, or a faulty automatic voltage regulator. It’s recommended to troubleshoot the issue and address the root cause to prevent further damage to the generator.

How do I fix my generator surging?

To fix a generator that is surging, try cleaning the air and fuel filters, adjusting the carburetor, and checking for any loose or damaged wires.
Additionally, make sure the generator is running on a flat surface and there is enough fuel in the tank.


In conclusion, If your Predator generator won’t stay running, there are a few potential causes to consider. It could be due to issues such as clogged fuel filters, dirty carburetors, insufficient fuel supply, or spark plug problems.

It is advisable to troubleshoot and address these potential issues by cleaning or replacing the necessary components. Additionally, checking the oil level, ensuring proper ventilation, and verifying the generator’s load capacity are essential steps.

If the problem persists, seeking professional assistance or contacting the manufacturer for further guidance is recommended to diagnose and resolve the issue effectively, ensuring your Predator generator operates smoothly and reliably.

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