Chainsaw Dies When I Give It Gas – 6 Easy Solutions.

You are ready to get on with your daily work routine and fill up gas in your chainsaw. But suddenly, it dies despite being filled with gas. There may be several possible causes for your chainsaw engine to shut off when it is running at full power, and the fault may be located deep inside your saw.

When your Chainsaw dies even after having full gas, there can be issues with damaged spark plugs, dirty filters, and Contaminated fuels. There can also be issues with the carburetor itself. But luckily, all these problems are solvable quite easily.

Hence, if you are thinking about why a chainsaw dies when I give it gas, we will help you find all the reasons and their solutions.

Table of Contents

Why Does The Chainsaw Dies When I Give It Gas?

There are many reasons that can lead to your Chainsaw stopping when you give it gas. Down below, we will list all the probable reasons for it.

  • Faulty Spark Plugs
  • Dirty Air filters
  • Clogged Fuel filters
  • Contaminated fuel
  • Carburetor issues
  • Misfitted adjustment screws

6 Easy Solutions For Chainsaw Dies When You Give It Gas

You know about the causes which lead to your chainsaw dying when you give it gas. But, do not worry, as below we will discuss the solutions you can try to solve all these issues.

Solution 1: Replace damaged spark plugs

Since the spark plug serves as the foundation of the ignition system, broken spark plugs are one of the main causes of chainsaw failure. One issue with spark plugs might be carbon absorption.

The electrodes of the spark plug are harmed by carbon accumulation as a result of continual firing. In addition, it’s possible that the spark plugs had gaps or weren’t in the proper place. It takes only $5-$10 to buy new spark plugs. Follow the steps below to know how to replace the spark plugs.

Step 1: Open the spark plugs

The first step is to open and check the spark plugs whether they are damaged or not. Open the top cover of your chainsaw, and you will see the spark plug.

Open the spark plugs

Step 2: Pull out the spark plug

Now take a socket wrench and start to unscrew the spark plug. Slowly pull out the spark plug until it comes out.

Step 3: Check the spark plug

Now check the spark plug for any carbon buildup. If there is carbon buildup, the spark plugs are no longer usable. You will need to get a new one and screw it back in the same way. However, if you see little dust and debris, you can use a brush to clean it and put it back on.

Check the spark plug

Step 4: Check the gap

If the spark plug looks okay, you should check the gaps in them. Check your user manual to identify the correct gap. Once the gap is established correctly, check the gap with a spark plug gapping tool and slowly push the metal “arm” nearer or farther from the central electrode.

Check the gap

Solution 2: Clean or replace the dirty air filters

A filthy air filter can obstruct airflow and cause the engine to stop when it enters the engine through the inlet pipe. Additionally, the chainsaw’s air filter shields it from contaminants and debris by trapping it before it enters the engine.

So, when the air filter gets dirty, the best solution is to replace them. But sometimes they can be cleaned if the dirt accumulation is not too much.

Step 1: Find the air filter

Air filters are located on the engine housing, hidden behind a cover. Use a screwdriver to remove the air filter housing from the back side of the chainsaw.

Find the air filter

Step 2: Clean the air filter

Chainsaws produce a lot of wood shavings and dust, which will soon block the air filter. Thus you do not need to replace the air filters. For instance, you can try cleaning them first.

Take a brush, clean the air filter, and gently bounce them on a hard surface to let all the dust particles go out. After cleaning them, screw them back in the same way.

Step 3: Replace the air filter

If your air filters are beyond repair, you will need to replace them. Air filters are pretty cheap and available between $15-$25. Just open the old filter and replace it.

Replace the air filter

Solution 3: Replace Clogged Fuel filters

The purpose of the gasoline filter is to shield the engine against dirt and particles. It shields it from fuel-related debris. If old gasoline is kept in the chainsaw for a while, it may get blocked.

Replace Clogged Fuel filters

The stickier gasoline might also block the fuel filter, causing the engine to stop entirely. Above, you can see what a clogged filter looks like compared to an unclogged one.

If your fuel filter becomes blocked, you will need to replace it. The new fuel filter only costs around $0.2-$0.5 apiece. Follow the steps below to learn how to change the fuel filter by yourself.

Step 1: Open the chainsaw and find the fuel filter

You’ll find the gasoline filter at the base of your fuel tank. The gasoline filter is right within the fuel tank, regardless of which model your chainsaw you are using.

Open the chainsaw and find the fuel filter

Step 2: Take out the old fuel filter

Before taking out the fuel filter outside, empty the fuel tank and save the fuel in a suitable holder. Now take a clipper and pull out the fuel filter from the bottom of the fuel tank. You will see that the fuel filter is attached to a rubber tubing; gently pull the filter from that, and it should open up easily.

Take out the old fuel filter

Step 3: Attach the new fuel filter

Before you attach the new fuel filter, make sure to clean the fuel tank properly so that the new filter doesn’t get contaminated. Just insert the new fuel filter into the rubber tubing just like you took out the previous one and put the new filter deep inside the gasoline tank.

Solution 4: Drain the old fuel

A chainsaw that has remained idle for a long period is frequently the cause of fuel problems. The fuel line and carburetor may become clogged with residues from old gas, which may cause your chainsaw to stop working as soon as you put gas in it.

To solve this, you will need to drain out all the old fuel inside the tank and clean the tank properly. Once the tank is fully cleaned, refill it with new fuel and ensure it is of good quality.

Solution 5: Clean the Carburetor

Carburetor jets frequently develop coatings of gasoline and dirt, which eventually clog the nozzles and reduce fuel flow. Additionally, if the oil quality is poor or might be a result of the chainsaw’s continual use of gasoline, a thick film is left on the carburetors.

Clean the Carburetor

If this happens, you will need to clean the carburetors, and the process is really easy, which we will discuss below.

Step 1: Open the air filter

You must take off the air filter before you can start cleaning the carburetor. We have already discussed the air filter’s location above in our guide. Once you remove the air filter, you will have a cover that also needs to be removed, and it will give you access to the carburetor.

Open the air filter

Step 2: Remove the carburetor

At first, take out the throttle control; simply pull it out.

take out the throttle control

Now take out the studs holding the carburetor using a screwdriver and lift out the carburetor.


Step 3: Clean the carburetor

Once the carburetor is removed, check it for any deposits and dirt buildup. Get a carb cleaner and properly clean the carburetor using the cleaner.

Remove the carburetor’s bowl and bowl nut. It’s usual to find old fuel and its contaminants here the most. It is important to clean any leftovers or old gasoline completely.

Clean the carburetor

It is important to clean any leftovers or old gasoline completely. Spray the liquid carb cleaning over the carburetor’s parts and within the intake. Any material that had been lodged has been removed when spray flows from the opposite end of a nozzle.

Solution 6: Fix Adjustment Screws

The adjustment screws modify the carburetor in order to function. They must be correctly adjusted otherwise, the noise and functionality will be compromised, which may also cause the chainsaw to die.

Fix Adjustment Screws

You will find three screws marked H, L, and T. Now you will need to adjust the screws properly. Read below to know how.

Step 1: Adjust the L Screw

We will adjust the L screw first; With a screwdriver with the saw still operating, spin the L screw in a clockwise manner. Till the motor nearly ceases rotating, continue to turn it. Next, start slowly counterclockwise-twisting the L screw till you notice the engine idle properly.

Step 2: Adjust the T Screw

Working with the T Screw is now required. Start by clockwise-turning the T screw till the chainsaw chain begins to rotate. When it begins to move, carefully spin the T screw in the other direction till the chainsaw chain pauses.

Step 3: Adjust the H Screw

It is identified by the letter H on the chainsaw. This adjustment controls how much fuel comes into the carb whenever the throttle is depressed. When completely tightened, it prevents gasoline from reaching the carb, causing the engine to operate low. So, make the necessary adjustments as needed.

What To Do To Keep Chain Saw Function Like New?

Follow the tips below to keep your chainsaw working like new and functioning properly.

  • Always keep the chain sharp and use the proper method for sharpening it.
  • Change the fuel and air filter every 30,000 miles.
  • Do not leave out gas in your chainsaw for a very long time.
  • Always properly tension the chain.
  • Do not forget to lubricate the clutch when you use the chainsaw often.

Frequently Asked Question

Chainsaw dying can be quite annoying especially when you are ready to work on a project. Thus, we have discussed the common reasons and solutions for it so far. Below we will discuss faqs which will help you to understand the problems more easily.

Why does my chainsaw stop running when it gets hot?

If your chainsaw stops working once it heats up, you either have an issue with the spark or the gas supply being blocked into the engines. You may lessen the likelihood of this issue repeating by changing your spark plugs and maintaining clean gas lines.

Why is my chainsaw smoking and not cutting?

Chainsaw smoking is caused by a worn chain and too much force being applied to the bar and chain while trying to produce a cut. Another cause of this might be a shortage of bars and chain lubricant or the use of inferior oil.

What causes a chainsaw to bog down when accelerating?

When you see that your chainsaw bogs down often when accelerating, it is due to improper gas to oil ratio. When the percentage of oil or gas is too much or too low, bogging down your chainsaw is a common issue.

Why does my chainsaw stall at full throttle?

Gasoline from your chainsaw evaporates when you keep it ideal for a very long time, creating a sticky mess that might clog the carburetor and damage the chainsaw. Moreover, the engine won’t receive enough gasoline to function correctly if the filter gets clogged. All these are common issues for your chainsaw stalling.

How often does a chainsaw need to be serviced?

Experts often advise getting proper servicing anywhere from once per year for mild use to each and every couple of months for greater use. However, a lot depends on how you use it. Therefore, if you use it more frequently than usual, you might need to service it more frequently.

How often should I lube my chainsaw?

The best time to lube your chain and bar is whenever you are filling your tank, as this ensures the proper working of your chainsaw for a long time. So, always lube the chainsaw when you are filling your tank.


So, if you use your chainsaw on a regular basis, then the chainsaw suddenly dying when you give it gas is a common issue. So, if this happens, you must first check the spark plug, air, and fuel filters. These three are the most common reasons for the chainsaw to stop working.

In this guide, we have discussed all the reasons for the chainsaw to stop suddenly, and by now, we believe you know how to solve all these issues easily. The easiest possible way to have your chainsaw always working fine is to maintain it regularly.

Along with regular maintenance, you should always check the chain and bar before you start working to avoid any further damage.

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