As winter's icy grip loosens, the thought of storing your snowblower often brings a sigh of relief. However, before tucking it away for the warmer months, a crucial maintenance step awaits: draining the fuel. Leaving gasoline in the tank and carburetor over the summer can lead to a host of problems, from gummed-up fuel systems to difficult starts next season.
This guide will walk you through the essential process of safely and effectively draining the gas from your snowblower. Understanding why this is important and how to do it correctly will not only protect your investment but also ensure your snowblower is ready to tackle the first snowfall of the next winter season with minimal fuss. We'll cover the necessary tools, step-by-step instructions, and important safety precautions to make this task straightforward for any homeowner.
Why Draining Your Snowblower's Gas is Essential
Gasoline is a complex mixture of volatile organic compounds, and over time, especially when exposed to air and heat, it can degrade. This degradation process, often referred to as "fuel going stale," involves oxidation and evaporation of lighter, more volatile components. The result is a thicker, varnish-like residue that can clog fuel lines, the carburetor jets, and the fuel filter, preventing proper fuel flow to the engine.
Leaving fuel in the tank for extended periods also allows moisture to condense within the tank, particularly in fluctuating temperatures. This water can mix with the gasoline, leading to corrosion within the fuel system and potentially causing engine damage. Furthermore, modern gasoline formulations, especially those containing ethanol, are more prone to absorbing moisture and separating into ethanol-rich and water-rich layers, a phenomenon known as phase separation, which is detrimental to engine components.
Proactive fuel draining is a simple yet highly effective preventative maintenance measure. It significantly reduces the risk of costly repairs associated with a gummed-up carburetor or corroded fuel system. By investing a little time now, you can save yourself considerable expense and frustration when the snow begins to fly again.
Gathering Your Tools and Preparing the Workspace
Before you begin, ensure you have the necessary tools and a safe environment. You will need a clean, approved gasoline container to collect the old fuel, a funnel, a siphon pump (either manual or battery-powered), a clean rag or shop towels, and potentially a screwdriver or wrench if your snowblower has a drain plug on the carburetor. It's also advisable to have a pair of chemical-resistant gloves and safety glasses to protect yourself from fuel fumes and potential splashes.
Choose a well-ventilated outdoor area for this task, away from any open flames, sparks, or heat sources. Gasoline fumes are highly flammable, and working indoors or near ignition sources poses a serious fire hazard. Ensure the snowblower is on a level surface to prevent it from tipping and to allow for complete fuel drainage. It's also a good idea to have some absorbent material, like kitty litter or sawdust, on hand in case of minor spills.
Consider the condition of your snowblower's fuel cap. Make sure it seals properly. If it's damaged or missing, it's best to replace it before you start. Also, if your snowblower has been recently used, allow it to cool down for at least 30 minutes before you begin draining the fuel to avoid burns from hot engine components.
Step-by-Step Guide to Draining the Fuel
The most common and straightforward method involves using a siphon pump. First, locate the fuel tank on your snowblower. Remove the fuel cap and insert one end of the siphon hose deep into the fuel tank, ensuring it reaches the bottom. Place the other end of the hose into your approved gasoline container. Begin siphoning the fuel by either manually pumping the bulb on the siphon or activating the battery-powered pump. Continue until the fuel tank is empty.
If your snowblower's carburetor has a drain plug, this offers an even more thorough way to remove residual fuel. Locate the carburetor, which is typically a small metal component connected to the engine. You'll usually find a small screw or bolt at the bottom of the carburetor bowl. Place your fuel container and a rag underneath the drain plug to catch any drips. Carefully loosen and remove the drain plug using the appropriate tool. Allow all the fuel to drain out of the carburetor bowl. Once drained, reinsert and tighten the drain plug securely.
After draining the tank and carburetor, it's a good practice to run the engine for a minute or two. This will help burn off any remaining fuel in the fuel lines and the carburetor itself, ensuring it's as dry as possible. Do this in your designated safe, well-ventilated area. Once the engine sputters and dies, you have successfully removed most of the fuel.
Alternative Methods and Considerations
For snowblowers with very small fuel tanks or if you don't have a siphon pump, you can sometimes tilt the snowblower carefully to drain the fuel directly from the tank opening into your container. This method requires caution to avoid spilling fuel on yourself or the surrounding area. Ensure the fuel cap is removed and tilt the machine slowly and steadily until the fuel has drained. This is best done with the fuel cap opening facing downwards towards your container.
Some older snowblower models might have a fuel shut-off valve. If yours does, ensure this valve is in the "off" position before you begin draining. This can help prevent accidental fuel flow during the process. If your snowblower has a fuel filter, it's also a good time to inspect it. If it appears clogged or damaged, consider replacing it while you're performing this maintenance.
Remember to dispose of the old gasoline properly. Never pour it down a drain, into the soil, or mix it with regular trash. Contact your local waste management facility or a hazardous waste disposal center for information on how to safely and legally dispose of old fuel. Many auto parts stores also offer fuel recycling services.
Post-Drainage Storage and Next Steps
Once the fuel is drained, it's time to prepare your snowblower for storage. Wipe down any exterior surfaces with a clean rag to remove dirt and debris. Check the auger blades and impeller for any damage and clean them. If your snowblower has a lubrication point for the auger bearings, consider applying a small amount of grease.
For long-term storage, you might also consider adding a fuel stabilizer to the fuel system before draining. This is done by adding the stabilizer to a nearly full tank of fresh gasoline, running the engine for a few minutes to circulate the stabilized fuel through the carburetor and fuel lines, and then proceeding with the draining process. The stabilizer helps prevent the formation of gum and varnish in the fuel system during storage.
Finally, store your snowblower in a dry, protected location, such as a garage or shed. Covering it with a snowblower cover or a tarp can provide an extra layer of protection against dust and moisture. This attention to detail during storage will ensure your snowblower is in prime condition when you need it again.
Key Takeaways
- ✓ Draining fuel prevents gumming and corrosion in the fuel system.
- ✓ Always work in a well-ventilated outdoor area away from ignition sources.
- ✓ Use a siphon pump for safe and effective fuel removal.
- ✓ Consider running the engine briefly after draining to clear lines.
- ✓ Dispose of old gasoline responsibly at an approved facility.
Frequently Asked Questions
How often should I drain the gas from my snowblower?
It is highly recommended to drain the gasoline from your snowblower at the end of each winter season before storing it for the summer. This preventative maintenance ensures easier starting and a healthier fuel system for the following year.
What are the risks of not draining the gas?
The primary risks include the gasoline degrading and forming varnish that clogs the carburetor and fuel lines, leading to starting problems or complete failure to run. Moisture absorption can also cause corrosion within the fuel system.
Can I just leave a little bit of gas in the tank?
It's best to drain as much fuel as possible. Leaving a small amount can still lead to degradation over time, and moisture can still condense in the tank. For optimal results, aim for a nearly empty tank and carburetor.
What kind of container should I use for the old gas?
Use a clean, approved gasoline container specifically designed for fuel storage. These containers are made of materials that are compatible with gasoline and have secure lids to prevent spills and evaporation.
Is it safe to siphon gas by mouth?
Absolutely not. Siphoning gasoline by mouth is extremely dangerous and can lead to serious health risks from ingesting or inhaling toxic fumes. Always use a mechanical siphon pump.
Conclusion
Draining the gasoline from your snowblower at the end of the season is a vital maintenance task that safeguards your equipment against common storage-related issues. By understanding the reasons behind this practice and following the outlined steps, you can ensure your snowblower remains in excellent working condition, ready to perform when the first snowflakes begin to fall. This simple procedure prevents costly repairs and the frustration of a snowblower that won't start.
Take the time to perform this essential maintenance. Gather your tools, prepare a safe workspace, and follow the step-by-step guide for draining the fuel. Proper storage preparation, including fuel draining, is an investment in the longevity and reliability of your snowblower, ensuring many winters of dependable service.


