How to Drain Gas From Lawn Mower Without Siphon

Most lawnmowers are powered by gas, but the gas will evaporate and leave you with a machine that won’t start over time. However, if your lawnmower runs on gasoline, it can be drained without a siphon. There are many different ways to do this, some easier than others. This blog post will explore different ways to drain gas from a lawn mower without a siphon.

The easiest way is to use a funnel which you can buy or make out of paper. Just cut off the top of an egg carton and insert it into the opening at the bottom of your fuel tank until it’s full. Next, remove both ends so there’s no chance of spillage when pouring in water from another container. Read on to know more!

How to Drain Gas From Lawn Mower Without Siphon

Why Do You Need to Drain Gas From Your Lawnmower?

A lawn mower’s gas tank can get clogged with dirt, rust, and sediment if it’s not drained periodically. This can make starting your lawn mower very difficult. Furthermore, gasoline that is not properly drained can gunk up the carburetor for future use.

Placing your lawnmower upside down to remove the gas tank may damage it. This guide will show you how to drain gas from lawn mowers without a siphon or other tools in several different ways.

There are many solutions out there for draining gasoline from your lawn mower. Whether using water pressure to get all of the gasoline into barrels or an air compressor with a long hose that siphons oil into containers, you can find plenty of methods mentioned in this article to choose what suits you best.

Why Should You Always Empty the Fuel Tank Before Storing Your Lawnmower?

We will give you a few more reasons why you should always empty the fuel tank before storing your lawnmower. If you’re not sure about this, please read through the following reasons:

1. It’s easier to start your mower when it’s time to cut the grass.

2. Your carburetor may be flooded with gas and won’t startup.

3. You’ll be less likely to damage your mower with debris or insects if there is no gas in the tank.

4. It takes longer for the engine to cool down, so it will take longer than usual for you to resume using your mower.

5. Emptying the fuel tank before storing your lawnmower is safer, especially if you have pets or small children who would likely crawl into the storage area.

6. You’ll prevent corrosion from occurring on your mower, which can lead to needing expensive repairs later on.

7. Your lawnmower’s warranty does not cover damage caused by neglect.

12 Ways on How to Drain Gas From Lawn Mower Without Siphon

12 Ways on How to Drain Gas From Lawn Mower Without Siphon

There are many ways to remove gas from a lawnmower. Here are twelve ways to drain gas from a lawn mower without a siphon.

1. Use a Funnel

Connect the gas tank to the top of a funnel with a hose clamp or screw clamp. Prevent any leaks by inserting a rubber stopper or a sponge into the funnel’s opening. Then, directly pour the gasoline from your gas canister into the funnel until it is empty, and remove it from the lawnmower’s gas tank.

2. Use a Hose With Water Pressure

Attach one end of the hose to the top of your gas tank and attach this other end to a water faucet that has an on/off valve. Turn on the water faucet and create enough water pressure to push out all of your gas tank’s contents. Finish by turning off the water faucet’s water supply.

3. Drill a Hole in the Top of the Tank

Use a drill with a 3/8-inches drill bit to create a hole on top of your lawn mower’s gas tank. This will let all the gas freely flow when you’re trying to empty it. Make sure that you remove all of the residual gasoline from your tank before attempting to start it up.

4. Open the Fuel Valve

Although this is not draining gas out of your lawn mower, it will give you enough time to pour it into another container easily. Open the fuel valve on the top of your gas tank to allow air to flow into the tank. This will prevent gasoline from spilling out onto your lawnmower’s engine parts while trying to empty it.

5. Use an Electric Fuel Pump

This is a great option if you want to drain some of the gas from your lawn mower but don’t want the hassle of using funnels or hoses with water pressure. Attach the electric fuel pump to your lawn mower’s gas tank, plug it in an available electric socket and turn on the power. Allow all of your gasoline to flow into whatever container you are using for safe storage.

6. Turn Your Mower on its Side

Turning your lawnmower on its side should allow gravity to do its job and drain any leftover gasoline from your gas tank. Place a large container underneath the lawn mower’s carburetor to catch all of the fuel as it drains out.

7. Use an Air Compressor

You can use this device if your lawnmower has an electric motor (not a gas motor). Attach one end of the hose to your lawn mower’s gas tank and attach the other end to an air compressor.

Turn on the electric motor or turn on the air compressor if battery operated, allowing all of your gasoline to flow out into another container. Be careful when using this method because it can be hazardous if any gasoline gets into the air intake of your electric motor or air compressor.

8. Use a Shop Vacuum

A shop vacuum is another device you can use to drain your lawn mower’s gas tank easily. Attach the hose of your shop vacuum directly to the top of your lawnmower’s gas tank, turn on the power and wait for all of the gasoline to flow out into whatever container you are using.

9. Use a Wet/Dry Vacuum

Attach the appropriate nozzle to your lawn mower’s gas tank and plug it into an electric socket. Turn on the vacuum so that water is being pulled from the tank, allowing all of the gasoline from your tank to flow out into whatever container you use for safe storage. Make sure you allow any excess air to leave before turning this device off.

10. Turn Your Mower Upside Down

This may not be a method you want to use, but it is possible to drain your lawnmower’s gas tank by simply turning it upside down. This will allow any excess air inside the tank to escape and let gravity do its job since gasoline should be heavier than water. Once you’ve finished draining the tank, turn it upside down and allow all of the gasoline to pour out.

11. Use an Oil-Based Soap Fluid

If you want to start your lawnmower, the gasoline inside its gas tank must be completely removed. This can be done with an oil-based soap fluid. Start by adding some soap fluid into your tank and fill it with water so it’s around 2/3 full.

Drain this mixture into another container and repeat this process until you can fill up your tank with water. Now, place the cap back on the gas tank, turn it upside down for a few minutes, and then right side up again. Any excess gasoline should now pour out of the tank so that you can start your lawnmower without any issues.

12. Run the Mower for a While

Finally, if you don’t have a siphon or any of the above devices to drain your lawnmower’s gas tank, then you can run your mower for at least 5 minutes. The gasoline inside the tank should be completely used up after this time period, and now it should be safe to store in any container without causing any problems.

Remember, you don’t have to use all the methods listed above simultaneously. Instead, try different combinations until you can get all of your gasoline out of the tank and into a safe container for storage. When done properly, this process of draining gas from a lawn mower without a siphon should be easy even if you’re not an experienced mechanic.

Things to Consider Before Draining Gas From Lawn Mower

Things to Consider Before Draining Gas From Lawn Mower

You have to know different methods on how to drain gas from lawn mowers without a siphon. But before you drain gas from your lawnmower, there are a few things that you should consider:

1. Make sure the engine is cold and that the fuel has run out

2. Cover the end of the drain tube to avoid spilling gas everywhere

3. Use a funnel to make pouring the gas down your garden hose easier.

4. Resist the urge to lift the mower off the ground as this may cause gasoline spray.

5. If gasoline still comes out once you’ve started draining, try adding water to the tank through the fill spout.

6. Keep yourself and your surroundings safe if using dangerous tools or machines that could cause any accident.


The right way to store your lawnmower is by emptying the gas tank and ensuring that everything else on it is in good working order. If you want more tips on how to drain gas from a lawn mowers without a siphon, read this blog article for some different ways of doing so.

These include using a funnel, using water pressure with a hose, or drilling into the top of the tank; we cover these methods and many others in detail here!

Jennifer Branett
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