Lawn Mower Maintenance: The Annual Checklist for a Trouble-Free Season

A mower that starts on the first pull every spring isn't luck—it's the result of proper off-season care. Whether you prepped it last fall or not, this checklist gets you ready.

Post-Season / Pre-Storage (Fall)

• Wash and dry completely.
• Blow out grass/debris from deck and cooling fins (air-cooled) or check coolant (water-cooled).
• Clean radiator fins with strong water jet.
• Drain fuel tank; replace fuel filter.
• Clean air filter housing; replace air filter.
• Inspect spark plug—replace if worn (cheap insurance). Use anti-seize on threads.
• Clean/lubricate throttle linkage and choke.
• Grease mower deck and all fittings.
• Remove deck; sharpen blades (better cut next year, no spring rush).
• Clean battery terminals; grease posts; replace battery if weak.
• Change engine oil and oil filter.
• Drain gas (or run dry) before storage.

In-Season Habits

• Wash after each use (cool engine first).
• Periodically check oil, air filter, fuel filter.

Spring Startup

If you did the fall list: fresh gas, check oil, pull. If not: do the fall list now, minus blade sharpening (do it anyway).

A maintained mower cuts cleaner, lasts years longer, and turns a chore into a non-event. Your lawn shows the difference.