Flooded Chainsaw

If you’ve ever used a chainsaw, then you probably know how important they are to your home. Chainsaws can cut down trees, trim branches off of them, and even help you clear brush out of your yard. But what happens when your chainsaw isn’t working right? You’ll want to figure out what’s causing the problem before trying any solutions so that you don’t waste time on a solution that won’t work in the first place!

Causes of Flooding

Your chainsaw can flood for several reasons:

  • Water in the fuel tank. If you’re using a two-stroke engine, this is the most likely culprit. In a two-stroke engine, air and fuel are mixed together at the same time. This means that if any water gets into your tank or lines, it will mix with the gas and cause flooding.
  • Water in the oil tank or line can also cause flooding because oil is used as part of lubrication for some parts inside of your chainsaw’s engine—so if there’s no oil flowing through properly, it can cause problems like flooding (as well as other issues).
  • Water in an air filter or muffler is another thing that could lead to chain saw flooding because both these components are meant to keep debris out of your chain saw while it’s running—but if they get wet they won’t work properly!

Common Symptoms

You may be wondering what the symptoms of a flooded chainsaw are. Well, fear not! We’ve compiled a list of common symptoms that you should keep in mind if your chainsaw starts acting up.

  • Your chainsaw won’t start: If you try to start your tool and it’s not responding, make sure the spark plug is dry and clean, otherwise you’ll need to replace it with a new one.
  • Your chainsaw won’t run: If your tool isn’t running smoothly or revving up properly, this could indicate that something is wrong with the fuel system—it may need more oil or cleaner fuel. Make sure there are no blockages in the carburetor (this would be an easy fix). Finally, check for loose wires from bad connections causing short circuits within certain components before calling in professional help—you might save yourself some money!
  • Your chainsaw will not idle: If there’s no gas coming through when you push down on throttle lever then this indicates there might be air bubbles trapped inside the carburetor which need removing by using a compressed air spray bottle while rotating the engine manually until they escape into the surrounding atmosphere (or get sucked into the filter).

How to Fix It

Before you tackle the task of fixing a flooded chainsaw, it’s important that you first turn off and unplug your unit. Next, remove the spark plug and drain any remaining gas from the carburetor. At this point, you should be able to remove all of the following parts:

  • Fuel cap
  • Spark plug (if applicable)
  • Fuel tank
  • Air filter (if applicable)
  • Chain cover or chain case

If you have an electric saw, skip down four steps. Otherwise, follow along with us!

Next up is removing a few more pieces of hardware: The chain bar assembly; chain tensioner; sprocket cover; sprocket(s); and any other componentry used for changing out or installing new chainsets into place on these bad boys.

Now that you’ve fixed your chainsaw, you will be better prepared for future problems.

It’s important to take care of your chainsaw, because it’s the only way you’ll be able to use it when the time comes. Keep your chain sharp and well-oiled, and make sure you always have enough fuel in your tank before you start cutting wood. If something does go wrong, don’t panic—take a deep breath, call someone who knows how to fix things (like me!), and try again. We’ll get through this together!


Now you know how to fix a flooded chainsaw, and hopefully your chainsaw will be up and running in no time. If you’ve been following our guide, then you should have done everything right by now!

Leave a Comment