Spring’s a great time of year, especially for us cold-weather-climate
inhabitants, who are now emerging from winter hibernation. Greeting us
are early-flowering bulbs, budding trees, and chirping birds. Add to
that inviting tableau a lawn that needs attention.
Before you pull the start cord on your walk-behind mower or turn the
key on your tractor and get your yard in shape, follow these
equipment-maintenance tips from Peter Sawchuk (shown below at our Florida testing facility), Consumer
Reports’ resident mower expert and watch our video (right) on the features to look for in a lawn mower.
Fuel: Start the season with fresh gasoline. Gasoline can deteriorate in
as little as one month, loosing firing power, clogging up the
carburetor, and making starting difficult if not impossible. If you
have not already drained the fuel from the tank or used gasoline
stabilizer last fall, empty out the old fuel. It’s a messy but
important job.
• Tip: Add stabilizer to your fuel whenever you buy gasoline for your
mower or tractor, not just at the end of the mowing season. This simple
step will keep the fuel fresh all the time. Note that environmental
additives in gasoline in some parts of the country can cause it to
break down and form a “varnish” even after a short time, resulting in
hard starting and an expensive carburetor cleaning.
Battery: Fully charge the battery on your tractor. The charging
system on most lawn tractors is not capable of fully recharging a low
battery. Periodically recharge your battery over the off-season, if you
don’t it could fail sooner that it otherwise would.
Oil: If you didn’t change the oil last fall before you put your machine
to rest, do so now. A lack of lubrication is the fastest way to
permanently damage your engine, so put in fresh oil and keep an eye on
the oil level throughout the mowing season. Too little oil can damage
or destroy the engine by leaving parts unlubricated in a hot
environment. Too much oil can also cause problems by preventing proper
lubrication.
Deck: Hose or scrape off old clippings from beneath the deck. Built-up
clippings will significantly reduce mulching performance by blocking
the recutting action necessary for good mulching.
To easily clean a mower deck, turn the mower on up on its side with
the carburetor and air filter facing upwards to eliminate lubrication
oil from getting into the fuel system and use a hose and scraper. If
the cap on your mower is vented, remove the cap, lay on two layers of
plastic wrap, and then put the cap back on. (Remove the plastic wrap
when you’re done cleaning.)
To clean a tractor deck without having to remove it, use a set of
ramps like those you’d use to change the oil in your car. Drive the
front wheels up on the ramp for access to the underside of the deck and
then use a hose and scraper.
• Tip: After cleaning, spray silicone lubricant on the inside of the
deck to reduce clipping build up and for easier cleaning. During mowing
season, remove clippings after each time you cut the grass, when they
are moist and easy to remove. This simple move will save you time in
the long run and give a better cut.
Blade(s): Get the blade(s) sharpened before you start cutting. A dull
blade will damage the blades of grass, stressing the plants and keeping
your lawn from looking its best and maybe even causing the grass tips
to turn brown. A dull blade will cause your mower to burn more fuel and
make you work harder and longer. Sharpen the blade(s) once a month or
more frequently for heavy cutting conditions, especially in areas with
small stones or sand.
• Tip: Buy a second blade or a second set of blades. This way you’ll always have sharp cutters on hand.
Spark plug and air cleaner: New spark plugs are cheap. Change it every
year for best engine performance. On a gas engine, replace the
carburetor air filter if it's paper. Wash a foam filter in soap and
water, rinse and squeeze dry, then lubricate it with engine oil and
squeeze it dry again before you reinstall it.
Moving parts: Lubricating moving parts, including cables and wheels. Check your owner’s manual for detailed information.
Essential information: Mow safely, and check out “How to fix the top 10 lawn problems” for expert advice on how to get a great-looking lawn. If you need to replace your mower or tractor, read "Faster and friendlier." Then use our Ratings of push mowers, self-propelled mowers, and lawn tractors (available to subscribers) to find the best model. You'll find more information on lawn gear and ways to keep your yard looking its best in our Complete Lawn & Yard Guide.