To empty lawn mower gas, follow a few simple steps. This ensures your mower stays in good condition.
Many lawn mower owners face the challenge of emptying gas. It’s necessary for maintenance, especially before storing the mower for winter. Old gas can clog the engine, causing issues when you start it again. Knowing the right way to empty the gas can save time and prevent damage.
In this guide, we’ll walk you through the process. You’ll learn why it’s important and how to do it safely and efficiently. Let’s get started on keeping your lawn mower in top shape.

Preparing For The Task
Emptying your lawn mower gas tank requires some preparation. Proper preparation ensures the task is smooth and safe. Follow these steps to get ready.
Gather Necessary Tools
- Fuel container
- Wrench
- Rag or towel
- Fuel siphon pump
- Gloves
Having the right tools is crucial. The tools mentioned above will make the job easier and cleaner. Use a fuel container to collect the gas. A wrench helps to remove any bolts, and a rag keeps the area clean. Gloves protect your hands.
Ensure Safety Precautions
- Work in a well-ventilated area
- Keep fire sources away
- Wear protective gear
- Allow the engine to cool
Safety is essential. Work outside or in a well-ventilated space to avoid inhaling fumes. Keep away from fire sources to prevent accidents. Wear gloves and safety glasses. Let the engine cool before starting.

Locating The Fuel Tank
Before you can empty the gas from your lawn mower, you need to find the fuel tank. This step is crucial because you must know where the gas is stored. It helps you understand how to remove the gas safely and efficiently.
Identify Fuel Tank Location
First, identify the fuel tank location. Most lawn mowers have the fuel tank located near the engine. Look for a small cap or cover labeled “Fuel” or “Gas.” This cap is usually on the top or side of the mower.
Type of Lawn Mower | Fuel Tank Location |
---|---|
Push Mower | Near the engine, often on top |
Riding Mower | Under the seat or at the rear |
Check Fuel Level
Next, check the fuel level in the tank. This step helps you know how much gas you need to remove. Open the fuel cap and look inside the tank. You can use a flashlight to see better.
- If the tank is full, you may need a large container to empty it.
- If the tank is almost empty, a small container will suffice.
Knowing the fuel level ensures you have the right tools and containers ready. This preparation makes the gas removal process smoother and safer.
Draining The Gas
Emptying the gas from your lawn mower is essential. Old fuel can damage the engine. This section will guide you through the process. It’s not as hard as it seems. Let’s get started with two methods.
Use Siphon Pump
A siphon pump makes the job easier. You can buy one at any hardware store. First, place the lawn mower on a flat surface. Next, insert the siphon pump’s tube into the gas tank. Make sure it reaches the bottom. Place the other end of the tube into a gas container. Pump the siphon to start the flow. The gas will move from the tank to the container. Check the tank to ensure it’s empty. Store the gas in a safe place.
Manual Draining Method
The manual draining method needs only a few tools. First, gather a wrench, a gas container, and a funnel. Tilt the lawn mower to one side. Find the fuel line connection. Use the wrench to loosen the fuel line. Place the gas container under the fuel line. Let the gas drain into the container. Once empty, reattach the fuel line. Tighten it securely. Make sure there are no leaks. Dispose of the old gas properly.
Handling Residual Fuel
Handling residual fuel in your lawn mower is crucial. It keeps your machine running smoothly. Leftover gas can cause problems. It can clog the fuel system. It may also lead to engine issues. Here are steps to deal with residual fuel effectively.
Remove Residual Gas
First, disconnect the spark plug wire. This ensures safety. Next, place the lawn mower on a flat surface. Use a siphon pump to remove the gas. Insert the siphon tube into the fuel tank. Place the other end in a gas container. Pump the siphon until the tank is empty.
Check for any remaining fuel. Tilt the mower slightly if needed. This helps to remove all residual gas. Ensure the tank is completely empty. Properly dispose of the old gas. Follow local regulations for disposal.
Clean Fuel Tank
After removing the gas, clean the fuel tank. Use a clean rag or paper towel. Wipe the inside of the tank thoroughly. Remove any dirt or debris. This prevents clogging and engine issues. For thorough cleaning, use a small amount of fresh gas.
Swirl the fresh gas in the tank. Ensure it reaches all areas. Then, pour out the gas. Repeat if needed. This helps to clean the tank completely. Finally, let the tank air dry. Ensure no moisture remains inside.
Disposing Of Old Fuel
Disposing of old fuel from your lawn mower is crucial. It keeps your machine running smoothly. It also protects the environment. This step is often overlooked. But it shouldn’t be.
Find Disposal Site
First, locate a proper disposal site. Many places accept old fuel. Check your local waste management center. Auto repair shops also take old gas. They know how to handle it safely.
Follow Local Regulations
Each area has specific rules. Follow local regulations for disposal. Some areas have strict guidelines. You might need to follow certain steps. This ensures safe and legal disposal.

Cleaning The Carburetor
Cleaning the carburetor is crucial for maintaining your lawn mower. A clean carburetor ensures your machine runs smoothly. This process involves a few steps. Let’s focus on two main tasks: removing the carburetor bowl and cleaning the carburetor parts.
Remove Carburetor Bowl
First, locate the carburetor bowl. It sits at the bottom of the carburetor. Use a wrench to remove the bolt holding the bowl. Be careful, as gas may spill out.
- Place a container under the carburetor to catch any gas.
- Loosen the bolt and remove the bowl.
- Inspect the bowl for dirt or debris.
Cleaning the bowl is essential. Use a clean cloth to wipe it down. Check for any buildup that could block fuel flow.
Clean Carburetor Parts
Once the bowl is off, focus on the carburetor parts. These parts can get clogged with dirt. A clean carburetor ensures efficient fuel flow.
- Remove the float and needle valve.
- Use carburetor cleaner to spray all parts.
- Check for any blockages in the jets and passages.
- Wipe each part with a clean cloth.
Reassemble the parts carefully. Ensure everything is secure. A clean carburetor can improve your lawn mower’s performance. Regular maintenance helps avoid problems.
Reassembling The Mower
Reassembling the mower after emptying the gas is crucial. It ensures the mower functions properly. Follow these steps to reattach the fuel tank and check connections.
Reattach Fuel Tank
Place the fuel tank back in its position. Align it with the mounting points. Secure the tank with screws or bolts. Make sure they are tight but not overtightened. This prevents leaks and ensures stability.
Check Connections
Inspect all connections to the fuel tank. Ensure hoses and clamps are secure. Look for any signs of wear or damage. Replace any faulty parts immediately. Confirm the fuel line is properly attached. This step is vital for safe operation.
Refilling With Fresh Gas
Once you have emptied the old gas from your lawn mower, it is time to refill it with fresh gas. This ensures your mower runs smoothly and efficiently. Let’s dive into the process of refilling the fuel tank.
Choose Correct Fuel Type
Choosing the right fuel type is crucial for the performance of your lawn mower. Most small engines run on unleaded gasoline with an octane rating of 87 or higher. Ensure the fuel contains no more than 10% ethanol. Check your mower’s manual for specific recommendations. Here is a quick reference:
Fuel Type | Octane Rating | Ethanol Content |
---|---|---|
Unleaded Gasoline | 87 or higher | Up to 10% |
Refill Fuel Tank
Follow these steps to refill the fuel tank:
- Place the mower on a flat surface.
- Turn off the engine and let it cool.
- Locate the fuel cap and remove it.
- Using a funnel, pour the fresh gas into the tank. Avoid overfilling.
- Replace the fuel cap securely.
- Wipe any spilled fuel with a clean cloth.
Now, your lawn mower is ready with fresh gas. This will help it run more efficiently and prolong its life. Make sure to store your fuel in a cool, dry place to keep it fresh.
Final Checks
After emptying the gas from your lawn mower, performing final checks is crucial. These checks ensure your mower operates safely and effectively. Skipping this step can lead to problems down the line.
Test The Mower
Start your lawn mower. Listen for any unusual sounds. These noises could indicate internal issues. A smoothly running engine is a positive sign. Check if the mower blade spins without hindrance. This ensures that the emptying process didn’t cause any damage.
Ensure Safe Operation
Inspect the fuel lines for leaks. Leaks can lead to dangerous situations. If you notice any, replace the damaged parts immediately. Next, examine the air filter. A clean air filter helps the engine run smoothly. Replace it if it looks dirty or clogged.
Check the oil level using the dipstick. Low oil levels can harm the engine. Top up the oil if needed. Also, verify that all nuts and bolts are tight. Loose parts can affect the mower’s performance and safety.
Final Check | Action |
---|---|
Test the Mower | Start the mower, listen for unusual sounds, and check blade movement |
Inspect Fuel Lines | Look for leaks and replace damaged parts |
Check Air Filter | Ensure it’s clean; replace if dirty or clogged |
Verify Oil Level | Use the dipstick; top up if necessary |
Tighten Nuts and Bolts | Ensure all parts are secure |
Frequently Asked Questions
How Do I Drain Gas From A Lawn Mower?
To drain gas from a lawn mower, locate the fuel valve. Turn it off and disconnect the fuel line. Let the gas flow into a container.
Can I Leave Gas In The Mower Over Winter?
Leaving gas in the mower over winter is not recommended. It can degrade and damage the engine. Always empty the tank.
What Tools Are Needed To Empty Lawn Mower Gas?
To empty lawn mower gas, you need a fuel siphon pump, a gas container, and gloves.
Is It Safe To Dispose Of Lawn Mower Gas?
Dispose of lawn mower gas at a local hazardous waste facility. Never pour it down drains or on the ground.
Conclusion
Emptying lawn mower gas is simple and essential. Follow the steps outlined. Use appropriate tools. Ensure safety at all times. Dispose of old gas responsibly. Regular maintenance extends mower life. Saves money on repairs. A well-maintained mower performs better. Cuts grass more efficiently.
Clean equipment means a healthier lawn. Now, you’re ready to care for your mower. Enjoy a smooth mowing experience. Happy mowing!