You’ve been mowing since spring, and the machine’s been running fine, so why mess with it, right? Well, that thinking is actually how most mower problems start. Mid-season is exactly when things tend to slip, and a little attention now can save you a big repair bill later.
We sat down with Grant Lisiecki, one of our service techs here at Ty’s Outdoor Power, to get the straight story on what to check, what to watch for, and when to stop mowing and bring it in.
Why Most Homeowners Skip Mid-Season Maintenance
Grant says it’s more common than you’d think. “I’d say probably 20 to 30 percent of homeowners aren’t really doing anything or are doing something mid-season. Most people just keep mowing until there’s an issue or something doesn’t feel right.” The problem is that by the time something feels off, the damage is already done.
The 30-Minute Monthly Check That Prevents Most Problems
You don’t need to be a mechanic to do this. Grant recommends setting aside half an hour every month or so to do the following, saying, “These alone will prevent major issues throughout the season”:
- Sharpen or Swap the Blades: Dull blades tear grass instead of cutting it
- Clean Underneath the Deck: Grass buildup restricts airflow and makes your engine work harder
- Check Oil Level and Condition: Dirty or low oil is the fastest way to shorten your engine’s life
- Clean or Replace the Air Filter: Your engine needs clean airflow to run right
- Inspect Belts for Cracks or Wear: A broken deck belt mid-mow is no fun
- Check Tire Pressure: Uneven tires lead to an uneven cut
How to Know Your Blades Need Attention
Blade problems show up in the lawn before you even look under the deck. Grant explains: “Grass will look torn or it’ll have some brown tips after mowing. The cut may be uneven, and the mower might start vibrating a little more.”
Grant recommends sharpening every 20 to 25 hours of use, which is roughly every four to six weeks during peak season. If a blade is badly chipped, worn thin, or sharpened down too far, it’s replacement time. With regular sharpening, though, a good blade can last four to five years.
The Two Things That Protect Your Engine: The Oil and Air Filter
When asked what he’d never skip, Grant didn’t hesitate: “If there’s one that I think you should absolutely not neglect, it’s the oil and the air filter. That’s kind of what protects your engine. If you let that go too long, you’re just shortening the life of the engine and your mower’s life. That’s kind of the biggest difference between a mower that lasts 15 years and one that makes it about four or five.”
- Oil: Change it every season, or every 50 hours; whichever comes first. Oil that sits too long loses its ability to protect your engine’s internal parts.
- Air Filter: A clogged filter chokes the engine and lets debris in. “Once that’s clogged, you’re going to have some serious running issues.” Check and clean or replace the air filter every 25 hours of use.
What Changes in July and August
Hot weather puts extra stress on everything. Grant sees it every summer. “Oil will break down faster, and engines are under a lot more load. The grass is getting thicker with all the rain, making airflow even more important. Keeping the deck clean and making sure the engine can cool properly becomes a big deal.”
Here are a couple of practical tips for the hottest months:
- Mow earlier or later in the day to reduce heat load on the engine
- Check your oil more frequently since heat accelerates breakdown
- Keep the deck clean after every few mows, especially when the grass is thick or damp
Signs You Should Stop Mowing and Call a Technician
Some things you can handle yourself. Others are a sign to park it and call us. Stop mowing if you notice:
- Knocking or grinding noises
- A burning smell
- Heavy or unusual vibration
- Sudden loss of power
- Smoke while running or at startup
Grant also warns that engine neglect over time leads to worn piston rings, oil burning, and eventually a complete motor lockup. At that point, you’re looking at an engine replacement instead of a tune-up.
What’s Worth Doing Yourself vs. Leaving to a Pro
Basic maintenance is totally DIY-friendly. Grant’s short list:
- Blade sharpening or replacement
- Air filter changes
- Oil changes
- Spark plug replacement
On the other hand, he explains, “Where we see people get into trouble most is digging into their carburetors, the engine internals, or transmissions. Those repairs require the right tools and experience. We see a lot of cases where a small issue turns into a bigger one because someone tried to fix it without the proper setup.”
The Real Cost of Skipping Maintenance
The numbers put it all into perspective. Grant explains that a couple of years of complete neglect could cost you over $2,000 in repairs. If your engine goes out entirely, you could be looking at a $3,800 replacement bill. While the roughly $150 per season for routine engine maintenance might seem like a lot at the start of the season, it can save you thousands in the long run.
Products Worth Having on Hand
If you run a Kawasaki engine, Grant recommends the Kawasaki tune-up kit. It includes oil, an oil filter, spark plugs, a fuel filter, and an air filter. He also recommends:
- Kawasaki Fuel Treatment: Run it through at the end of the season to prevent carburetor varnish (varnish is a sticky residue that builds up inside the carburetor and clogs small fuel passages)
- A Blade Balance: If you’re sharpening your own blades, an unbalanced blade causes vibration and puts extra wear on the spindle
- Brand-Recommended Oil: Don’t just grab whatever’s on Amazon. If you’ve got a Kawasaki, run Kawasaki’s oil.
Keep It Running All Season Long
Mid-season maintenance isn’t complicated; it’s just something you have to be consistent with. Thirty minutes, a few basic checks, and the right products go a long way toward keeping your mower out of the shop and in your driveway where it belongs.
If you’re not sure where to start, or if something doesn’t feel right, stop by Ty’s in Gretna. We’ll take a look, walk you through your options, and get you back to mowing.
