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Getting Your Toro Mower Ready for Spring: Your Pre-Season Checklist

Date Released: 9 Feb 2026 Category: Blog
Spring always seems to arrive suddenly, doesn't it? One day you're enjoying the peace of a dormant garden, and the next the grass is growing enthusiastically and desperately needs cutting. This is precisely when you discover whether you put your mower away properly last autumn or whether you're about to face some frustrating problems.

Even if you didn't winterise your mower perfectly, don't panic. A bit of spring preparation can get almost any machine back into proper working order. Think of this as waking your mower up gently rather than expecting it to leap straight into action after months of sleep.

Start with a Visual Inspection

Before you do anything else, just have a good look at your Toro in the daylight. You're checking for anything obviously wrong like rust, damage, loose parts, or unwelcome residents. Mice occasionally decide that mower engines make excellent winter accommodation, and you definitely want to evict them before trying to start things up.

Check underneath the deck as well. Sometimes winter moisture causes more rust than you'd expect, particularly if the mower was stored somewhere damp. Look for any damage that might have occurred whilst it was stored, like something falling against it or children using it as a climbing frame when you weren't looking.

Sort Out the Fuel Situation

If you emptied the fuel tank before winter, well done. Now you just need to add fresh petrol and you're good to go. If you left fuel in with stabiliser, give the tank a sniff. Stale petrol has a distinctive varnishy smell that's quite different from fresh fuel. If it smells off, drain it out and start fresh rather than hoping for the best.

When you add new fuel, don't fill the tank completely straight away. Put in just enough to test whether the mower starts and runs properly. There's nothing more annoying than filling a tank only to discover you've got carburetor problems that need fixing before you can actually use the machine.

Check the Oil Level and Condition

Pull out the dipstick and see where you stand. If you changed the oil before winter storage, brilliant. If you didn't, now's the time. Even if the level looks fine, check the colour and consistency. Oil should be relatively clear amber, not black and gritty. If it looks more like tar than oil, it needs changing.

Changing oil in spring means you're starting the season with everything properly lubricated and protected. Your engine will run better, last longer, and thank you for it. Plus, it's a job that takes maybe fifteen minutes once you've done it a couple of times, so there's really no excuse for putting it off.

Cut grass in garden

Give the Air Filter Some Attention

The air filter is your engine's first line of defence against dirt and debris, and it deserves a moment of your time. Pull it out and assess its condition honestly. If it's absolutely filthy, just replace it. They're not expensive, and a clean filter makes a noticeable difference to engine performance.

If it's a foam filter that's just a bit dusty, you can wash it in warm soapy water, rinse thoroughly, let it dry completely, then apply a very light coating of clean engine oil before refitting. Paper filters can sometimes be cleaned by tapping them gently to dislodge dust, but replacement is often the better choice.

Check the Spark Plug

This little component works incredibly hard and is often overlooked. Unscrew it and have a look. A healthy spark plug has a light tan or grey colour at the electrode. If it's black and sooty or covered in deposits, it's time for a replacement. They cost next to nothing and can make the difference between a mower that starts first pull and one that has you pulling your arm off.

When you fit a new spark plug, make sure you gap it correctly according to your manual's specifications. This tiny detail matters more than you might think for reliable starting and smooth running.

Inspect All the Moving Parts

Walk around your mower looking at cables, belts, and any visible moving components. You're checking for fraying, cracking, or obvious wear. Cables should move freely without binding, and belts shouldn't have cracks or missing chunks. If you spot anything questionable, now's the time to address it rather than waiting for something to snap mid-mow.

Give all the wheels a spin to make sure they're moving freely. Check tyre pressure if you have pneumatic tyres. These small details contribute to how well your mower handles and how even your cut will be.

Battery Care for Electric Start Models

If your Toro has electric start and you removed the battery for winter, inspect it before refitting. Check the terminals for corrosion, which appears as white or blue-green crusty deposits. Clean any corrosion with a wire brush and a bit of bicarbonate of soda mixed with water.

Charge the battery fully before refitting it, even if you kept it charged over winter. Make sure all the connections are tight and secure. A loose connection is a common cause of starting problems that people often overlook in favour of more complicated diagnoses.

Sharpen or Replace the Blade

We've talked about blade maintenance in another article, but it bears repeating here. Check your blade's condition and either sharpen it or fit a fresh one. Starting the season with a sharp blade means your first cuts of the year will look great rather than leaving you wondering why your lawn looks ragged.

Don't forget to check blade balance after sharpening. An unbalanced blade creates vibration that your mower definitely doesn't need, especially after sitting idle all winter.

Clean Everything Properly

Even if you cleaned your mower before storage, it probably needs another going over. Remove any cobwebs, dust, or debris that has accumulated. Check all the vents and air intakes to make sure nothing is blocked. A clean mower runs cooler and more efficiently than a dirty one.

Pay particular attention to the underside of the deck. Any caked-on grass from last season should be removed now. It's much easier to scrape off when dry, and starting with a clean deck means grass won't stick as readily during your first few mows.

Do a Safety Check

Before you start the engine, run through a quick safety checklist. Make sure the blade is tight, all guards and safety features are in place and working, and there's nothing loose that could vibrate free or cause problems. Check that the throttle and any other controls move smoothly and return to their proper positions.

Confirm that safety features like the blade brake and operator presence controls are working correctly. These exist to protect you, and you really don't want to discover they're faulty the hard way.

Manicured lawn

The First Start of the Season

When you're ready to start your mower for the first time, be patient. It might take a few attempts, especially if it's been sitting for several months. Don't flood the engine by repeatedly trying if it doesn't catch immediately. Give it a moment between attempts.

Once it starts, let it warm up for a few minutes before putting it under load. This allows oil to circulate properly and everything to reach operating temperature gradually. Listen for any unusual sounds and watch for smoke or other warning signs.

A Quick Test Run

Before you tackle your entire lawn, do a small test patch somewhere inconspicuous. This lets you check that everything is cutting properly, the height adjustment is where you want it, and there are no problems you missed during your preparation. It's much better to discover an issue whilst testing than halfway through mowing your front lawn.

Getting your Toro ready for spring doesn't require special skills or hours of work. An hour spent on proper preparation means you'll have reliable service all season long. Your future self, facing an unexpectedly sunny weekend perfect for gardening, will be very grateful indeed that you took the time to do things properly.