Chainsaw Won’t Pump Gas? Here’s What to Do

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Updated in April 2025 | By John

Your chainsaw is a vital tool for cutting down trees, trimming branches, and clearing brush. But what happens when your This is a common problem, and there are a few things you can check to troubleshoot the issue.

In this blog post, we’ll discuss the most common causes of a chainsaw not pumping gas into the bulb, and we’ll provide step-by-step instructions on how to fix the problem. So if your chainsaw is giving you trouble, read on for help!

Chainsaw Won’T Pump Gas Into The Bulb

Chainsaw Won’t Pump Gas? Here’s What to Do

If your chainsaw won’t pump gas, here are a few things to check:

Make sure the fuel tank is full:

Check the fuel line for kinks or blockages:

Clean the carburetor:

Replace the spark plug:

Adjust the carburetor:

If you’ve tried all of these things and your chainsaw still won’t pump gas, it’s time to take it to a professional for repair.

Chainsaw Won’t Pump Gas Into the Bulb

Symptoms

The chainsaw starts but quickly dies out.
The chainsaw makes a sputtering sound when you try to start it.
The chainsaw’s chain doesn’t move when you pull the trigger.

Causes

There are a few possible causes for a chainsaw not pumping gas into the bulb. These include:

A clogged fuel filter:
The fuel filter is located near the carburetor and prevents dirt and debris from entering the engine. If the filter becomes clogged, it can restrict the flow of fuel to the carburetor, causing the chainsaw to start and die out.

A dirty carburetor:
The carburetor is responsible for mixing air and fuel in the correct proportions for combustion. If the carburetor becomes dirty, it can cause the chainsaw to run lean or rich, which can lead to starting problems.

A faulty fuel pump:
The fuel pump is responsible for sending fuel from the tank to the carburetor. If the pump is faulty, it can’t properly deliver fuel to the carburetor, causing the chainsaw to start and die out.

A bad spark plug:
The spark plug ignites the fuel-air mixture in the engine, causing it to run. If the spark plug is bad, it can’t properly ignite the mixture, causing the chainsaw to start and die out.

Solutions

To fix a chainsaw that won’t pump gas into the bulb, you will need to identify the cause of the problem and take the appropriate steps to fix it.

If the fuel filter is clogged, you can clean it by removing it from the chainsaw and soaking it in a cleaning solution. Once the filter is clean, reinstall it in the chainsaw.

If the carburetor is dirty, you can clean it by removing it from the chainsaw and disassembling it. Use a carburetor cleaner to clean the carburetor’s jets and passages. Once the carburetor is clean, reassemble it and reinstall it in the chainsaw.

If the fuel pump is faulty, you will need to replace it. You can purchase a new fuel pump from a chainsaw parts store.

If the spark plug is bad, you will need to replace it. You can purchase a new spark plug from a chainsaw parts store.

Prevention

You can prevent a chainsaw from not pumping gas into the bulb by following these tips:

Keep the fuel filter clean:
Clean the fuel filter regularly to prevent it from becoming clogged.

Keep the carburetor clean:
Clean the carburetor regularly to prevent it from becoming dirty.

Use good quality fuel:
Use good quality fuel in your chainsaw to prevent the fuel pump from becoming damaged.

Inspect the spark plug regularly:
Inspect the spark plug regularly for signs of wear and tear. Replace the spark plug if it is damaged.

By following these tips, you can help prevent your chainsaw from not pumping gas into the bulb.

Also Read THis: Chainsaw.Keeps.Stalling When Given Gas

Frequently Asked Questions about Chainsaw Fuel Pump Issues

1. Why won’t my chainsaw pump gas into the bulb?

There are several potential reasons why a chainsaw may not be pumping gas into the bulb. The most common causes include a clogged fuel filter
a malfunctioning fuel line
or a faulty carburetor. It’s important to carefully inspect each of these components to identify and resolve the issue.

2. How can I troubleshoot a chainsaw that is not pumping gas into the bulb?

To troubleshoot a chainsaw that is not pumping gas into the bulb
start by checking the fuel filter for any blockages. Next
inspect the fuel lines for cracks or damage. Additionally
ensure that the carburetor is clean and functioning properly. By systematically examining these components
you can pinpoint the source of the problem and take appropriate action.

3. What should I do if my chainsaw’s fuel pump is not working?

If the fuel pump on your chainsaw is not working
it’s essential to perform a thorough inspection of the fuel system. Begin by checking for any obstructions in the fuel filter and ensuring that the fuel lines are free from damage. It may also be necessary to clean or replace the carburetor to restore proper fuel flow.

4. Can a clogged fuel filter cause a chainsaw’s pump to stop working?

Yes
a clogged fuel filter can certainly impede the proper functioning of a chainsaw’s fuel pump. When the fuel filter becomes clogged with debris or residue
it restricts the flow of gasoline to the carburetor
leading to fuel delivery issues. Regular maintenance and periodic replacement of the fuel filter can help prevent this problem.

5. Is it possible to repair a chainsaw’s fuel pump on my own?

Repairing a chainsaw’s fuel pump is feasible for individuals with a good understanding of small engine mechanics. However
it requires careful disassembly and reassembly of the fuel system components. If you are not confident in your ability to perform this task
it is advisable to seek assistance from a professional technician to ensure the proper diagnosis and resolution of the issue.

About The Author

I am John, and I am the creator of this website. I have been in the woodworking industry for about 5 years. I developed my passion for DIY projects around the house when I was in high school. I have discovered a new appreciation for those who have the experience to pass along their expertise. They know what works best and are able to help others. I am proud to be among them.

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