Draining the gas from your lawn mower is a crucial maintenance task that ensures its longevity and proper functioning. Whether you’re storing your mower for the winter, performing repairs, or dealing with stale fuel, knowing how to safely and effectively remove the gasoline is essential. This comprehensive guide will walk you through the different methods, safety precautions, and helpful tips to make the process smooth and worry-free.
Why You Need to Drain Your Lawn Mower’s Gas Tank
There are several compelling reasons why draining the gas from your lawn mower’s tank is a good practice. Understanding these reasons will help you appreciate the importance of this maintenance procedure.
Storing Your Lawn Mower for Winter
One of the most common reasons to drain your gas tank is preparing your lawn mower for winter storage. Gasoline left in the tank over the winter months can degrade and become stale. This stale gas can cause several problems, including:
- Difficulty starting the mower in the spring: Stale gas is less combustible and can make it extremely difficult to start your mower when you’re ready to use it again.
- Clogged carburetor: As gasoline breaks down, it can leave behind gummy deposits that clog the carburetor, hindering its ability to properly mix air and fuel.
- Damaged fuel lines: The residue from old gasoline can also damage fuel lines, leading to leaks and other fuel system issues.
By draining the gas tank before storing your mower for the winter, you prevent these problems and ensure a smoother start-up in the spring.
Dealing with Stale or Contaminated Fuel
Even if you’re not storing your mower for an extended period, you may still need to drain the gas tank if the fuel has gone stale or become contaminated. Gasoline can degrade over time, especially if it’s exposed to air or moisture. Signs of stale gas include:
- Difficulty starting the mower.
- Rough idling or stalling.
- Reduced engine performance.
Contaminated fuel can also cause similar problems. Contamination can occur if water, dirt, or other debris gets into the gas tank. Draining the tank and replacing the fuel with fresh gasoline will help restore your mower’s performance.
Performing Repairs on the Fuel System
If you need to perform any repairs on your lawn mower’s fuel system, such as replacing the fuel lines, carburetor, or fuel filter, you’ll need to drain the gas tank first. This is a safety precaution to prevent fuel spills and potential fire hazards.
Safety First: Essential Precautions Before Draining Gas
Before you even think about draining the gas, prioritizing safety is paramount. Gasoline is a flammable substance, and taking the necessary precautions can prevent accidents and injuries.
Work in a Well-Ventilated Area
Always drain the gas in a well-ventilated area, preferably outdoors. This will help dissipate any fumes and reduce the risk of inhalation. Avoid draining gas in enclosed spaces like garages or sheds, where fumes can accumulate and create a fire hazard.
Avoid Open Flames and Sparks
Keep open flames, sparks, and other sources of ignition away from the area where you’re draining the gas. This includes cigarettes, lighters, and power tools. Gasoline vapors are highly flammable and can easily ignite.
Wear Protective Gear
Wear safety glasses and chemical-resistant gloves to protect your eyes and skin from gasoline exposure. Gasoline can irritate the skin and eyes, so it’s important to minimize contact.
Have a Fire Extinguisher Nearby
Keep a fire extinguisher readily available in case of an emergency. Make sure the fire extinguisher is rated for Class B fires, which involve flammable liquids like gasoline.
Dispose of Gasoline Properly
Never pour gasoline down the drain or onto the ground. Gasoline is a hazardous waste and must be disposed of properly. Contact your local waste management authority for information on how to dispose of gasoline safely.
Methods for Draining Gas from Your Lawn Mower
There are several methods you can use to drain gas from your lawn mower. The best method for you will depend on your comfort level, the tools you have available, and the type of lawn mower you have.
Using a Siphon Pump
A siphon pump is a relatively inexpensive and easy-to-use tool that allows you to drain gas from the tank without having to tip the mower. This method is particularly useful for mowers with full gas tanks.
- Gather your supplies: You’ll need a siphon pump, a gasoline-approved container, safety glasses, and chemical-resistant gloves.
- Insert the siphon pump: Place one end of the siphon pump into the gas tank and the other end into the gasoline-approved container. Make sure the container is placed lower than the gas tank so that gravity can assist with the siphoning process.
- Start the siphoning action: Follow the instructions that came with your siphon pump to start the siphoning action. This usually involves pumping a bulb or using a hand pump to create a vacuum.
- Monitor the flow: Once the siphoning action starts, the gas will begin to flow from the tank into the container. Monitor the flow and stop the siphoning action when the tank is empty.
- Dispose of the gasoline properly: Seal the gasoline-approved container tightly and dispose of the gasoline according to your local regulations.
Tipping the Lawn Mower
Tipping the lawn mower is another way to drain the gas, but it’s important to do it safely to avoid spills and damage to the mower. This method works best when the gas tank is nearly empty.
- Prepare the area: Choose a flat, stable surface for tipping the mower. Place a gasoline-approved container near the mower’s fuel tank opening.
- Disconnect the spark plug wire: Before tipping the mower, disconnect the spark plug wire to prevent accidental starting.
- Tip the mower carefully: Carefully tip the mower towards the container, positioning the fuel tank opening over the container. Let the gas drain completely into the container.
- Dispose of the gasoline properly: Seal the gasoline-approved container tightly and dispose of the gasoline according to your local regulations.
Important Note: Always refer to your lawn mower’s owner’s manual for specific instructions on how to safely tip the mower. Some mowers should only be tipped in a certain direction to prevent oil from leaking into the engine.
Using the Fuel Line
Some lawn mowers have a fuel line that can be disconnected to drain the gas tank. This method is generally cleaner and more controlled than tipping the mower.
- Locate the fuel line: Find the fuel line that connects the gas tank to the carburetor.
- Place a container underneath: Position a gasoline-approved container underneath the fuel line to catch the draining gas.
- Disconnect the fuel line: Carefully disconnect the fuel line from the carburetor or the fuel tank. Have a pair of pliers handy to loosen the clamp if necessary.
- Let the gas drain: Allow the gas to drain completely from the tank into the container. You may need to open the gas cap to allow air to enter the tank and facilitate the flow of gas.
- Reconnect the fuel line: Once the tank is empty, reconnect the fuel line and tighten the clamp.
- Dispose of the gasoline properly: Seal the gasoline-approved container tightly and dispose of the gasoline according to your local regulations.
Dealing with Residual Gas and Fumes
Even after you’ve drained the gas tank, there may still be some residual gas and fumes remaining in the mower. It’s important to address these to prevent lingering odors and potential fire hazards.
Run the Engine Until It Stalls
After draining the gas tank, try starting the mower and let it run until it stalls. This will help burn off any remaining fuel in the carburetor and fuel lines.
Absorb Spills with Absorbent Material
If you spill any gasoline during the draining process, immediately clean it up with absorbent material such as rags or paper towels. Dispose of the used absorbent material properly.
Air Out the Area
After draining the gas and cleaning up any spills, air out the area to dissipate any remaining fumes. Open windows and doors to promote ventilation.
Tips for Preventing Fuel Problems in the Future
Once you’ve successfully drained the gas from your lawn mower, there are a few steps you can take to prevent fuel problems in the future.
Use Fresh Gasoline
Always use fresh gasoline in your lawn mower. Gasoline can degrade over time, so it’s best to use fuel that is no more than 30 days old.
Add Fuel Stabilizer
If you’re not going to use your lawn mower for an extended period, add a fuel stabilizer to the gas tank. Fuel stabilizer helps prevent the gasoline from degrading and forming gummy deposits.
Store Gasoline Properly
Store gasoline in a clean, airtight container in a cool, dry place. Keep the container away from direct sunlight and sources of heat.
Regularly Inspect Your Fuel System
Inspect your lawn mower’s fuel system regularly for any signs of leaks, damage, or corrosion. Replace any worn or damaged parts promptly.
Draining the gas from your lawn mower may seem like a daunting task, but with the right knowledge and precautions, it can be a safe and straightforward process. By following the steps outlined in this guide, you can ensure that your lawn mower is properly maintained and ready to perform its best for years to come. Remember to prioritize safety, work in a well-ventilated area, and dispose of gasoline properly. Regular maintenance, including draining the gas when necessary, will help extend the life of your lawn mower and keep your lawn looking its best.
Why is it necessary to drain gas from my lawn mower?
Draining the gas from your lawn mower is crucial for several reasons. Firstly, gasoline can degrade and become stale over time, especially during periods of inactivity like winter storage. Stale gas can lead to starting problems, poor engine performance, and potential damage to the fuel system. Leaving untreated gasoline in the tank and carburetor can cause gum and varnish deposits to form, clogging small passages and making it difficult to start the mower in the spring.
Secondly, gasoline is a flammable liquid and poses a fire hazard. Storing a lawn mower with a full tank of gasoline increases the risk of accidental spills or leaks, especially if the mower is stored in an enclosed space. By draining the gas, you significantly reduce the potential for fire or explosion, making your storage area safer. Furthermore, it’s often recommended to drain the gas before transporting the lawn mower to prevent leaks during transit.
When is the best time to drain gas from my lawn mower?
The best time to drain gas from your lawn mower is before extended periods of inactivity, such as winter storage or any period lasting longer than 30 days. Gasoline begins to degrade and form deposits in the fuel system relatively quickly, so preventing this degradation is essential for maintaining your mower’s performance. Also, draining the gas before any repairs are undertaken on the fuel system is a good safety measure.
In addition to long-term storage, consider draining the gas if you plan to transport the lawn mower. Even with a tight fuel cap, bumps and vibrations during transport can cause fuel to leak, which can be both messy and hazardous. Draining the gas minimizes the risk of spills and makes transportation much safer and cleaner.
What tools and materials do I need to drain the gas safely?
You’ll need a few essential tools and materials to drain the gas from your lawn mower safely. These include a fuel stabilizer (if you plan to store the gas), a siphon pump or fuel line clamp (depending on the method you choose), a gasoline-approved container with a secure lid, rags or absorbent pads to clean up any spills, and safety glasses and gloves to protect your eyes and skin from gasoline exposure.
Consider also having a funnel handy to help direct the fuel flow into the container, preventing spills. Ensure the gasoline container is clearly labeled and stored away from heat sources, open flames, and out of the reach of children. It’s also wise to perform the gas draining process in a well-ventilated area to avoid inhaling gasoline fumes.
How do I drain the gas using a siphon pump?
To drain the gas using a siphon pump, first, ensure the engine is cool and turned off. Open the fuel tank cap to relieve any pressure. Insert one end of the siphon pump hose into the fuel tank, reaching the bottom, and place the other end into your approved gasoline container. Make sure the container is placed below the level of the fuel tank.
Operate the pump mechanism to create a siphon, and the fuel will begin to flow into the container. Monitor the fuel level in the tank and continue pumping until the tank is empty. Once the fuel is drained, carefully remove the siphon hose, wipe up any spills with rags, and properly seal the gasoline container. Dispose of the rags safely and according to local regulations.
How do I drain the gas by running the engine dry?
Running the engine dry is another method for draining the fuel system. This involves letting the engine run until it consumes all the gasoline in the carburetor and fuel tank. Start the lawn mower in a well-ventilated area and allow it to idle. Do not leave the mower unattended while it is running.
Continue to let the mower run until it sputters and stalls due to lack of fuel. Once the engine has stopped, try starting it again to ensure all the fuel has been consumed. Be aware that some modern lawn mowers have a low-oil shutoff, so ensure there is sufficient oil in the engine before attempting this method. After the engine is completely dry, properly store the mower.
What should I do with the drained gasoline?
Properly disposing of or storing the drained gasoline is crucial for environmental and safety reasons. Never pour gasoline down drains, into sewers, or onto the ground. This can contaminate water sources and pose a significant environmental hazard. Such disposal practices are also frequently illegal.
If the gasoline is relatively fresh (less than a few months old) and free from contaminants, you can add fuel stabilizer to it and store it in a tightly sealed, approved container for future use in other gasoline-powered equipment, such as your car (if applicable) or another lawn and garden tool. If the gasoline is old or contaminated, take it to a hazardous waste collection facility or a local recycling center that accepts gasoline. Many communities offer designated drop-off days for household hazardous waste.
How do I prepare my lawn mower for storage after draining the gas?
After draining the gas, there are several other steps you should take to prepare your lawn mower for storage. These include cleaning the mower deck, removing and sharpening the blade, changing the oil, and cleaning or replacing the air filter. These actions ensure optimal performance and longevity.
Additionally, consider disconnecting the spark plug wire to prevent accidental starting during storage. If possible, store the mower in a dry, sheltered location, such as a garage or shed, to protect it from the elements. Cover the mower with a tarp or cover to further protect it from dust and debris. Following these steps will help ensure your lawn mower is ready to start easily when you need it again.