How to Start a Stihl Chainsaw When Flooded

To start a Stihl chainsaw when flooded, first turn off the choke and engage the chain brake. Then press the prime bulb 2-3 times until you see fuel in it. Remove the spark plug and check for moisture or debris buildup.

If present, clean with a small brush or compressed air. Reinstall the spark plug, making sure that all connections are secure. Next, add fresh fuel to your tank and ensure it is mixed properly (50:1 ratio of two cycle oil to gasoline).

Finally, pull on the starter cord several times until you hear an engine noise; this indicates that fuel has been drawn into combustion chamber and then restart as normal.

  • Step 1: Move the chainsaw to a well-ventilated area
  • Starting a Stihl chainsaw when flooded can produce hazardous fumes, so it is important to work in an open space with plenty of air flow
  • Step 2: Check the spark plug for water droplets or any other type of moisture
  • If there is moisture present, replace the spark plug and then dry off the inside of the saw where fuel may have entered during flooding
  • Step 3: Remove the starter cord from its housing and pull out several inches before letting go
  • This will help clear away any remaining water within the starter assembly and make starting easier
  • Step 4: Pour fresh fuel into your Stihl chainsaw’s tank, taking care not to overfill as this could cause further damage to your engine once you begin running it again
  • Step 5: Grip both handles firmly and depress the primer bulb four times while setting choke (if applicable)
  • Then pull out on starter cord until resistance is felt before releasing quickly back into housing – repeat this procedure five or six times until fuel has been pumped through carburetor intake ports by primer bulb action; hand should be slightly below carburetor intake port at all times during priming process in order ensure no excess fuel enters cylinder chamber when pulling on starter cord
  • Step 6: Push throttle control lever halfway between full speed (F) position and idle (I) position – hold in this position while pulling on start cord with quick successive pulls; if engine starts after two or three attempts release throttle control lever immediately back down into idle (I) position before allowing engine run freely at full speed under its own power for brief period (~30 seconds)
How to Start a Stihl Chainsaw When Flooded


How Do You Start a Stihl Chainsaw After Flooding It?

If your Stihl chainsaw has been flooded, it is important to take the proper steps in order to start it up again. First, you should remove any fuel from the carburetor and check for water or moisture in the spark plug area. You may also need to clean out the air filter if it has become clogged with debris after being exposed to water.

It is also recommended that you replace all of your gaskets and seals that have been damaged by flooding as well as change out any worn parts such as piston rings or other internal components. Finally, once everything is properly cleaned and replaced, make sure that there are no obstructions preventing fuel flow before attempting to start the engine. With these steps completed, your Stihl chainsaw should be ready for use!

How Do You Unflood a Chainsaw Fast?

To quickly unflood a chainsaw, start by removing the spark plug and turning the saw upside down. Then, tilt it slightly to one side so that any excess fuel can drain out of the chamber. Take off the air filter cover and clean or replace it if necessary.

After that, turn over your chainsaw again and pour some oil into the cylinder through its spark plug hole until you see some seepage from around the piston skirt. Finally, reinstall all components including your spark plug, pull starter cord a few times to prime your engine with oil before starting up!

How Long Does It Take for a Stihl Chainsaw to Unflood?

The length of time it takes to unflood a Stihl chainsaw can vary depending on your particular model and the severity of the flooding. Generally speaking, if you’re able to get your chainsaw started up after it has flooded, then it should take no more than 10-15 minutes for all the fuel and air in the engine to clear out. If you’re unable to get your chainsaw started, then you may have to wait up to an hour for all of the excess fuel and air in the engine system to dissipate before attempting again.

If this doesn’t work, then you may need professional help or advice from a qualified technician.

How Do I Know If My Stihl Chainsaw is Flooded?

If your Stihl chainsaw is flooded it will be difficult to start, and you may hear a sputtering sound as the engine fails to ignite. The most common symptom of a flooded chainsaw is difficulty starting it or an inability to start it at all. You should also check if there’s excess fuel in the carburetor by removing the air filter and checking for any overflowing fuel inside.

If you see gasoline pooled inside, then this indicates that your Stihl chainsaw is likely flooded.

How to fix a flooded STIHL Chainsaw Engine

Brand New Stihl Chainsaw Won’T Start

If you’ve recently purchased a brand new Stihl chainsaw and it won’t start, the first step to troubleshooting is to check for fuel. Make sure there’s enough fresh two-cycle engine oil in the gas tank, as well as that all of your spark plugs are properly connected. If these items have been checked and everything appears to be in order, then it could be an issue with the carburetor or ignition system.

It may require professional service from an authorized technician to get your chain saw up and running again.

How to Start a Flooded Stihl Ms250

Before starting a flooded Stihl MS250, make sure that you have the correct fuel mix of 50:1 (2.6 ounces of oil per gallon of gasoline). Then, with the saw on its side and the spark plug cap removed, pull out the choke and pressurize the tank by pulling outwards on the primer bulb at least 3 times until it is full. Finally, position yourself behind saw’s handlebar and slowly pull back on its starter rope to fire up your chain saw.

How to Start a Flooded Chainsaw

Starting a flooded chainsaw can be intimidating, but it doesn’t have to be. To start your chainsaw, first make sure that you are in a safe and open area and wearing protective gear such as gloves, hearing protection and eye protection. Once you’re ready to begin, turn the choke lever on (if applicable) and pull the starter rope until there is resistance then pause for two seconds before pulling again.

If the engine does not start after several pulls, check for air leaks in the fuel lines or try priming it with some fresh fuel before trying again. With patience and practice starting your flooded chainsaw will become second nature!

How to Start Stihl Chainsaw

Starting a Stihl chainsaw is easy once you understand the basics. First, make sure that your chainsaw has a full tank of fuel and that all safety protocols are followed. Then, press the throttle trigger to open up the choke and prime the engine.

Next, pull on the starter rope handle until it reaches its maximum travel distance before releasing it back in one smooth motion. Once enough revolutions have been made by the engine, release the throttle trigger and allow your Stihl chainsaw to idle for a few seconds before engaging blades with caution.


Starting a Stihl chainsaw when it is flooded can be complicated and challenging. By following the steps outlined in this blog post, however, you can get your chainsaw running again quickly and safely. Be sure to check for any debris or clogs that may have caused your chainsaw to become flooded before attempting to start it up.

Additionally, remember that if there is too much fuel in the cylinder or engine compartment, you should drain some of it before starting the motor. With these tips and tricks in mind, you will be able to start a Stihl Chainsaw when flooded without hassle!

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