As a seasoned pressure washer user, I have come across various issues that can be frustrating, especially when it comes to the machine’s engine. One of the most common issues that I have encountered with pressure washers is when they only run on choke. This problem can cause a lot of inconvenience and delay when it comes to getting your cleaning job done.
There are many reasons why pressure washer only runs on choke but some of the common reasons are that there may be too much air in the carburetor. It can be due to an air leak or a low amount of fuel in the engine, using the wrong type of gas, or a dirty clogged fuel filter or carburetor.
In this article, I will explore why pressure washer only runs on choke, the common causes of this problem, and how to fix it.
Understanding the Choke Function in a Pressure Washer
Before diving into the reasons why a pressure washer only runs on choke, it’s important to understand the choke function. The choke is a component of the carburetor that helps supply a richer fuel mixture to the engine when it’s cold. When the choke is engaged, it restricts the flow of air and increases the amount of fuel that enters the engine. This action causes the engine to start easily, especially during cold weather.
Once the engine heats up, the choke should be disengaged to allow normal air and fuel flow to the engine. Failure to disengage the choke can cause the engine to flood, leading to poor performance and other issues.
Common Reasons Why a Pressure Washer Only Runs on Choke
If your pressure washer only runs on choke, there could be several reasons for this. These reasons include:
Dirty Carburetor
A dirty carburetor is one of the most common reasons why a pressure washer only runs on choke. When the carburetor is dirty, it restricts the flow of fuel to the engine, causing it to stall or run poorly. Dirt and debris can accumulate in the carburetor due to old fuel, or when the machine is left unused for an extended period.
Clogged Fuel Filter
A clogged fuel filter can also cause a pressure washer to only run on choke. The fuel filter prevents dirt and debris from entering the engine, ensuring that only clean fuel enters the carburetor. When the filter becomes clogged, it limits the flow of fuel to the engine, causing it to stall or run poorly.
Faulty Spark Plug
A faulty spark plug can also cause a pressure washer to only run on choke. The spark plug is responsible for igniting the fuel in the engine, allowing it to run smoothly. When the spark plug is damaged, it can’t create the spark needed to ignite the fuel, causing the engine to stall or run poorly.
Wrong Gas
Using the wrong type of fuel in the pressure washer probably will cause problems such as this one. Every engine requires its own specific type of fuel to ensure smooth working.
Always look at the type of fuel in your pressure washer before using it. Failing to do so will result in serious issues with your pressure washer. That’s why reading the manufacturer’s manual is an important task to do before you use such type of equipment.
Low Fuel Level
A low fuel level can also cause a pressure washer to only run on choke. When the fuel level is low, it limits the amount of fuel that enters the carburetor, causing the engine to stall or run poorly. It’s important to ensure that your pressure washer always has enough fuel before using it.
Importance of Regular Maintenance
Regular maintenance can prevent your pressure washer from only running on choke. Maintenance includes cleaning the carburetor, replacing the fuel filter, and checking the spark plug. It’s also important to ensure that your machine has the correct and right amount of fuel before use. Regular maintenance can help extend the life of your pressure washer and ensure that it runs smoothly.
If you want more info, check out this video:
How to Fix a Pressure Washer That Only Runs on Choke
If your pressure washer only runs on choke, there are several things you can do to fix the problem. These include:
Clean the Carburetor
Cleaning the carburetor is the first step in fixing a pressure washer that only runs on choke. To clean the carburetor, you’ll need to remove it from the engine and disassemble it. Once disassembled, clean the carburetor using a carburetor cleaner and a soft-bristle brush. Ensure that you clean all the small orifices and jets in the carburetor to remove any dirt or debris.
Replace the Fuel Filter
If the carburetor is clean and the pressure washer still only runs on choke, the next step is to replace the fuel filter. To replace the fuel filter, locate it on the fuel line and remove it. Replace the old filter with a new one and reattach the fuel line.
Replace the Spark Plug
If the carburetor and fuel filter are clean, and the pressure washer still only runs on choke, the next step is to replace the spark plug. To do this, remove the old spark plug using a spark plug socket and replace it with a new one. Ensure that the new spark plug is gapped correctly before installing it.
Refill the Fuel Tank
If the fuel level is low, refilling the fuel tank can fix the problem. Ensure that you fill the tank with the right type of fuel for your pressure washer.
Tips to Prevent Future Issues
To prevent your pressure washer from only running on choke in the future, you should:
- Use fresh fuel in your machine to prevent dirt and debris from accumulating in the carburetor.
- Store your pressure washer properly to prevent damage to the engine and carburetor.
- Check and replace the fuel filter regularly to ensure that only clean fuel enters the carburetor.
- Check and replace the spark plug regularly to ensure that the engine starts easily.
Conclusion
A pressure washer that only runs on choke can be frustrating, but with the right knowledge, it can be fixed. Understanding the choke function, common causes of the problem, and how to fix it can help you keep your pressure washer running smoothly.
Regular maintenance is key to preventing this issue, and taking care of your machine can help extend its lifespan. By following the tips outlined in this article, you can prevent future issues and keep your pressure washer running like new.
