How to Drain Gas from Lawn Mower

| Updated On: April 2, 2023
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Draining the gas from a lawn mower is an important part of routine maintenance. Before beginning, you will need to make sure that your lawn mower is shut off and the spark plug wire has been disconnected so it cannot be accidentally started while draining the gas tank. Place a container below the fuel line connection to catch any gasoline that may spill out when disconnecting it.

Once ready, loosen and remove the fuel line connection with pliers or wrenches depending on your model. The gasoline should slowly drain into your designated container as gravity pulls it downward.

If necessary, tip the lawnmower slightly towards one side in order to completely empty all of its remaining gas tanks before replacing with fresh gasoline again after reattaching all components back into place properly.

  1. Prepare the Mower: Make sure that the mower is turned off and unplugged from any power source, then set it on a flat surface in an open area
  2. Put on Protective Gear: Wear safety glasses and gloves to protect yourself while draining gas from lawn mower
  3. Locate the Fuel Tank Drain Plug: This should be located near the bottom of your fuel tank, usually close to where you fill up with gasoline for your mower’s engine. There may be some dirt or debris around this plug so use a soft brush to clear it away before continuing with the process.
  4. Unscrew the Fuel Tank Drain Plug: Using an adjustable wrench, unscrew the drain plug and place it into a container or pan that can hold any spilled fuel or liquid residue which will come out when drained from your tank.
  5. Drain Gas From Lawn Mower : Once all of the gas has been released from your fuel tank, replace its drain plug back into its original position and tighten securely using an adjustable wrench once again making sure not to over-tighten as this could cause damage to your engine’s components if done incorrectly
How to Drain Gas from Lawn Mower


Is It Best to Drain the Gas from a Lawn Mower?

Yes, it is best to drain the gas from a lawn mower when you are done using it for the season. This will prevent any remaining fuel from deteriorating and leaving behind residue that can damage internal components of the engine.

Additionally, draining any old fuel before storing your lawn mower over winter helps reduce fire risk as well as eliminates potential environmental hazards caused by leaking or spilled gasoline.

It’s important to note that if you haven’t used stabilizer with your gasoline, then you should plan on replacing all of the fuel in spring since older gasoline may not combust properly after sitting for extended periods of time.

How Do You Drain Gas from a Riding Lawn Mower Without a Siphon?

Draining the gas from a riding lawn mower without a siphon is possible and relatively easy to do. To drain the gas, start by removing the spark plug wire from the spark plug and turning it over to ensure any fuel in the engine has been emptied before draining. Next, locate your mower’s fuel tank and unscrew its cap.

Place an empty gas can or container that you have available underneath your mower near where the tank is located. You will then need to tilt your mower so that it rests on an angle where you can access both sides of the tank at once.

Once tilted properly, use a screwdriver or other tool to begin loosening each side of the hose clamp around one end of your fuelline until it becomes loose enough for you to remove and place aside for later reattachment when done draining.

With this done, carefully pull off each end of your fuelline from either side of your fuel tank while being careful not to spill any gasoline.

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How to Drain Gas from Lawn Mower Without Siphon

Draining the gas from a lawn mower without a siphon is easy and can be done quickly with just two basic tools. All you need is an adjustable wrench and an empty plastic container (like an old milk jug). First, locate the drain plug on your lawnmower near the base of the engine.

Then loosen it with the wrench to begin draining all of the gasoline into your container. Once all of the fuel has been drained, tighten up the plug securely so no more fuel will come out.

Do I Need to Drain the Gas from My Lawn Mower

Yes, it is important to drain the gas from your lawn mower when not in use for extended periods of time. Stale gasoline can cause damage to engine components and reduce performance. Additionally, draining the fuel helps prevent corrosion inside the tank which may lead to fuel leakage or other safety hazards.

To properly drain the gas from your lawn mower, first run it until empty then disconnect any spark plug wires and siphon out as much gas as possible before storing away for a period of time.

How to Drain Gas from a Riding Lawn Mower

Draining the gas from your riding lawn mower is an essential part of its maintenance and care. To properly drain the gas, start by turning off the engine and allowing it to cool for at least 30 minutes so that any remaining fuel in the carburetor can evaporate.

Then locate your mower’s fuel valve which will be located near where you fill up with gasoline; turn this knob or lever counter-clockwise to open it, draining all remaining gas into a container.

Finally, close the valve and dispose of used gasoline according to local regulations.

Bad Gas in Lawn Mower How to Fix

If you’re having issues with bad gas in your lawn mower, the first step is to drain any remaining fuel from the fuel tank and carburetor. Once drained, fill the tank with fresh, stabilized gasoline before replacing the air filter and spark plug. If this doesn’t solve the problem then it may be necessary to clean or rebuild your carburetor in order to restore proper operation of your lawn mower.


Draining the gas from your lawn mower is an easy way to extend its life, save money on fuel costs, and prevent potential spills that could damage your lawn. With a few simple steps, you can easily remove any excess or stale gasoline from the tank so it’s ready to go when spring rolls around.

Keeping up with regular maintenance like this will ensure your lawn mower runs smoothly for years to come. Therefore, taking the time to drain gas from your lawn mower regularly can be well worth it in the long run!

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