The leaves are falling, the temperatures are dropping, and the grass has finally stopped growing. After months of regular yard work, you’re probably looking forward to taking a break from the weekend chores. Before you push your equipment into the back corner of the garage and forget about it until spring, you need to do a little preventative maintenance.
Neglecting your machinery during the colder months is the fastest way to guarantee a frustrating start when the grass begins growing again. Leaving a lawnmower sitting untreated all winter leads to clogged fuel lines, rusted decks, and dead batteries. Taking just an hour or two right now to properly prepare your machine for storage saves you time, money, and plenty of headaches next year. Let’s walk through the simple steps to put your equipment to bed properly so it wakes up ready to work.
Manage the Fuel Supply
The most common reason a gas-powered engine won’t start in the spring is stale fuel. Gasoline degrades surprisingly fast. If you leave untreated fuel sitting in the tank and carburetor for months, it turns into a thick, sticky varnish. This gummy residue clogs the tiny passages inside the carburetor, restricting fuel flow and making the engine sputter or fail to turn over entirely.
You have two good options for dealing with this issue. The first option is to run the tank completely dry. Add a fuel stabilizer to whatever is left, run the engine to circulate the treated fuel, and let it run until it stalls. The second option is to fill the tank to the very top with fresh gas and a quality fuel stabilizer. A full tank prevents condensation from forming inside the plastic walls, which keeps water out of your fuel system. Either way, you’re protecting the internal components from degraded gasoline.
Clean the Undercarriage Thoroughly
Throughout the summer, grass clippings, dirt, and debris build up underneath the cutting deck. Grass holds a surprising amount of moisture, and if you leave clumps of it stuck to the metal all winter, it acts like a wet sponge. That trapped moisture will quickly eat away at the paint and cause the metal deck to rust and weaken.
Before storing your equipment, disconnect the spark plug wire for safety and turn the machine on its side. Use a plastic putty knife or a wire brush to scrape away all the caked-on grass and mud. Once you’ve scraped the worst of it off, wash the underside with a hose to remove any leftover dirt. Let the deck dry completely in the sun. For an extra layer of protection, you can spray a light coating of WD-40 or a silicone spray underneath to repel moisture during the damp winter months.
Change the Oil and Filters
Just like the engine in your car, your yard equipment needs clean oil to function smoothly. Over the course of a mowing season, the oil collects dirt, metallic particles, and combustion byproducts that become acidic over time. Leaving this dirty oil inside the crankcase all winter allows those acidic compounds to corrode the internal engine parts.
Drain the old oil while the engine is warm, as warm oil flows out faster and carries more suspended dirt with it. Refill the crankcase with fresh oil according to the manufacturer’s specifications. While you’re working on the engine, take a moment to inspect the air filter. A dirty air filter starves the engine of oxygen, making it run poorly and burn more fuel. If you have a paper filter that looks clogged, throw it away and install a new one. If it’s a foam filter, wash it out with warm soapy water, let it dry, and apply a few drops of clean oil before putting it back.
Remove and Store the Battery
If you use a riding model or a battery-powered push model, you can’t just leave the battery sitting in a freezing garage. Extreme cold drains battery life and can even cause the internal casing to crack if the fluids freeze and expand.
Disconnect the battery, wipe down the terminals with a dry cloth to remove any corrosion, and bring it indoors. Store it in a dry, climate-controlled spot like a basement shelf or a utility closet. To ensure it’s ready to go on the first warm day of spring, hook it up to a trickle charger every few weeks. This keeps the charge topped off and significantly extends the overall lifespan of the battery.
Inspect and Sharpen the Blade
Winter is the perfect time to give your cutting blade some attention. After hitting sticks, pinecones, and the occasional hidden rock all summer, the blade is likely dull and nicked. A dull blade tears the grass instead of cutting it cleanly, which makes your lawn look yellow and leaves it vulnerable to disease.
While the spark plug is still disconnected, unbolt the blade and inspect it. If it’s bent or deeply cracked, you’ll need to buy a replacement. If it just needs a fresh edge, you can sharpen it yourself with a standard metal file or a bench grinder. Just make sure you balance the blade on a nail before reinstalling it. An unbalanced blade causes severe vibrations that can rattle the engine apart over time.
Setting Yourself Up for Spring
Putting your yard equipment away wet and dirty is a recipe for a stressful spring. A little bit of proactive care right now ensures your machinery stays in top condition year after year. By managing the fuel, cleaning the deck, changing the oil, and protecting the battery, you lock out rust and corrosion. When the weather finally warms up and the grass starts growing again, you won’t have to waste a beautiful Saturday morning wrestling with a stubborn engine. You’ll be able to pull the cord, start the engine on the very first try, and get straight to work.