Petrol Lawn Mower Maintenance Guide Keeping on top of maintaining a petrol lawn mower is essential to ensure its longevity and best performance. Regular maintenance not only extends the life of your equipment but also guarantees a well-manicured lawn. While some tasks you can perform at home, certain issues may require professional servicing or repairs. Basic Maintenance Tips for Your Petrol Lawn Mower Check the Oil Regularly If you don’t already, you should be checking your oil level in your petrol lawn mower before each mow. Running low on oil can cause overheating and significant engine damage. Most mowers require an oil change every 20–50 hours of use to keep the engine in top condition. A well-lubricated engine will ensure smoother, longer-lasting performance. To do so, remove the oil cap, pull out the dipstick and wipe with a clean cloth, insert the dipstick into the tank until it’s resting, remove and the level should be between the markings. Add oil if needed. Bear in mind overfilling the oil can cause the engine to smoke and potentially damage it. Clean or Replace the Air Filter A clogged air filter restricts airflow, making the engine work harder and potentially reducing fuel efficiency. It can make your lawn mower feel as if they’re breathing through a straw. Inspect your air filter at least once per season. If it’s dirty, try cleaning it or replace it with a fresh one to keep your mower’s engine breathing easy. Sharpen the Blades Dull blades tear at the grass instead of cutting it cleanly, leaving your lawn vulnerable to disease and ultimately increasing your time on task. Sharpening your mower blades once or twice a season keeps cuts clean, promoting healthier grass and a better-looking lawn. You can read our guide to sharpening lawn mower blades by clicking here. Inspect the Spark Plug The spark plug is key to starting your mower smoothly. If you’re experiencing start-up issues or the engine misfires, it might be time to replace the spark plug. Generally, a fresh spark plug each year can make a big difference in performance. To do so, start by removing the existing spark plug. First disconnect the lead, and clean around the area. Using a spark plug socket, you can now loosen and remove the old spark plug. Now you need to adjust the the gap on your new plug. Use a spark plug gauge to measure whether this is necessary. When the gap is correct, you can install but be careful not to over-tighten ( 15 ft. lbs. maximum). Then, reattach the spark plug lead. End-of-Season Storage Preparation Properly storing your mower at the end of the season can prevent headaches next spring. Drain the fuel to avoid gumming up the engine, clean the blades, and consider adding a protective layer of oil to prevent rust. Store your mower in a dry, sheltered spot to keep it safe over winter. When to Seek Professional Petrol Lawn Mower Support Sometimes, it’s best to leave complex repairs to the professionals. Common signs that indicate it’s time to call in an expert include persistent engine issues, unusual sounds or vibrations, or excessive smoke. Mowshop’s nationwide service depots can handle these issues efficiently, ensuring your mower receives expert care and prolonging its lifespan. To get in touch, head to our contact page by clicking here and book in your slot to come and see us. Frequently Asked Questions About Petrol Lawn Mower Maintenance How often should I change the oil in my petrol lawn mower? Generally, your oil should be changed every 20–50 hours of use. Check your mower’s manual for specific recommendations to keep your engine healthy. Can I sharpen the lawn mower blade myself? Yes, but it does require proper tools and technique. If you’re unsure, our experts can ensure the job is done safely and effectively. How often should I change my lawn mower blades? If you’re sharpening your blades regularly but still noticing uneven cuts or nicks, it might be time for a replacement. Blades that are bent, heavily rusted, or thinned from frequent sharpening may no longer perform well. Generally, replacing the blade every 1–3 years, depending on usage and mowing conditions, can keep your mower cutting cleanly and efficiently. What fuel should I use for my petrol lawn mower? Most petrol mowers run well on standard unleaded petrol. Avoid ethanol-heavy fuel blends to prevent long-term engine damage. Conclusion Regular maintenance is essential for keeping your petrol lawn mower running efficiently and avoiding costly repairs. While basic tasks can be done at home, Mowshop’s service depots are always available for more involved repairs. Contact Mowshop for professional petrol lawn mower servicing near you, ensuring your mower stays in peak condition for years to come.
