Keep Your Lawn Mower Running Smoothly All Year

A well-maintained lawn mower lasts significantly longer and performs better than a neglected one. Whether you own a push mower, self-propelled model, or riding mower, the same core principles apply: regular cleaning, timely part replacements, and proper seasonal storage make all the difference.

Spring Startup Checklist

Before the first mow of the season, run through these essential checks:

  1. Change the oil — Old oil from last season can degrade and cause engine wear. Use the grade specified in your owner's manual.
  2. Replace the spark plug — A fresh spark plug ensures reliable starting. They're inexpensive and easy to swap.
  3. Inspect or replace the air filter — A clogged filter reduces engine performance and fuel efficiency.
  4. Sharpen the blade — A dull blade tears grass rather than cutting it cleanly, leaving your lawn vulnerable to disease.
  5. Check the fuel system — If you left old fuel in the tank, drain it and add fresh fuel with a fuel stabilizer.
  6. Inspect wheels and drive system — Check for wear, and lubricate any moving parts as recommended.

During the Mowing Season: Monthly Habits

  • Clean under the deck after each use — Grass clippings build up and cause corrosion. Use a scraper or hose (with the spark plug disconnected) to clear the underside.
  • Check the blade regularly — If you hit rocks or roots, inspect and re-sharpen the blade promptly.
  • Keep the air filter clean — In dusty conditions, check it every few mows.
  • Top up oil levels — Check before every few uses on gas models.

How to Sharpen a Mower Blade (Safely)

  1. Disconnect the spark plug wire before working near the blade.
  2. Tip the mower on its side (carburetor side up to avoid oil leaks).
  3. Remove the blade using a wrench — hold the blade with a block of wood for safety.
  4. Secure the blade in a vice and use a metal file or angle grinder to sharpen following the existing bevel angle.
  5. Check blade balance using a blade balancer or a nail in the wall — an unbalanced blade causes vibration and engine wear.
  6. Reattach securely and reconnect the spark plug.

Fall Winterization: Putting It Away Right

How you store your mower at the end of the season has a major impact on how easily it starts next spring.

  • Run the fuel tank dry — Or add a fuel stabilizer and run the engine briefly to circulate it through the carburetor.
  • Change the oil one final time — Fresh oil over winter prevents internal corrosion.
  • Remove and charge the battery (if applicable) — Store it in a cool, dry location.
  • Clean the entire mower thoroughly — Remove clippings, dirt, and debris from all surfaces.
  • Store in a dry location — A garage or shed protects against moisture and rust.

When to Call a Professional

Some issues — like carburetor rebuilds, ignition coil failures, or transmission problems on riding mowers — are worth handing to a small-engine repair shop. Catching these problems early (rather than mid-season) saves time and often money.

The Payoff of Regular Maintenance

Spending 30 minutes on seasonal care and a few minutes after each use keeps your mower in top shape. A properly maintained mower cuts cleaner, uses less fuel, starts reliably, and can last well over a decade — making routine maintenance one of the best investments you can make for your lawn care setup.