5 Signs Your Lawn Mower Needs a Service (And How to Prevent It)

A well-maintained lawn mower is essential for a healthy and beautiful lawn. However, like any machine, lawn mowers require regular care and occasional service to perform at their best. Knowing the signs that your lawn mower needs attention can help you avoid breakdowns, costly repairs, and ensure your lawn receives the care it deserves.

This article outlines five common signs that your lawn mower needs a service and provides preventative maintenance tips to keep it running smoothly throughout the mowing season.

1. Excessive Vibration

Excessive vibration is a clear sign that something is amiss with your lawn mower. It could indicate several issues, including:

• Loose or Damaged Blade: A loose or damaged blade can cause significant vibration and pose a safety hazard. Regularly check the blade for tightness and any signs of damage, such as cracks, bends, or excessive wear.

• Damaged Blade Adapter: The blade adapter connects the blade to the engine crankshaft. If it’s damaged or worn, it can cause vibration and affect the mower’s cutting performance.

• Bent Crankshaft: A bent crankshaft is a more serious issue that requires professional repair. It can cause excessive vibration and damage other engine components.

• Worn Engine Mounts: Engine mounts secure the engine to the mower deck. If they are worn or damaged, the engine can vibrate excessively.

• Preventative Maintenance: Regularly inspect the blade for tightness and damage. Replace damaged or bent blades immediately. Check the blade adapter for wear and replace it if necessary. Have a professional inspect the crankshaft and engine mounts if you suspect a problem.

2. Strange Noises

Unusual noises coming from your lawn mower are often a sign that something needs attention. Pay close attention to any new or unusual sounds, such as:

• Knocking: Knocking sounds can indicate a problem with the engine’s internal components, such as worn piston rings or bearings.

• Rattling: Rattling noises can be caused by loose parts, debris in the mower deck, or a problem with the muffler.

• Squealing: Squealing sounds often indicate a worn belt or a problem with the bearings in the wheels or cutting deck.

• Preventative Maintenance: Lubricate all moving parts regularly, according to the recommendations in your owner’s manual. This includes wheels, axles, and any grease fittings. Inspect belts for wear and tear, such as cracks or fraying, and replace them as needed.

3. Difficulty Starting

If your lawn mower is difficult to start or requires multiple pulls to get it going, it could indicate a problem with the starting system or fuel system.

• Spark Plug: A worn or fouled spark plug can prevent the engine from starting. Replace the spark plug annually or as needed.

• Carburetor: The carburetor mixes fuel and air for the engine. A dirty or clogged carburetor can cause starting problems.

• Fuel Filter: The fuel filter prevents dirt and debris from entering the carburetor. A clogged fuel filter can restrict fuel flow and make starting difficult.

• Air Filter: A dirty air filter restricts airflow to the engine, making it harder to start. Clean or replace the air filter regularly.

• Preventative Maintenance: Replace the spark plug annually. Clean or replace the air filter regularly. Use fresh fuel and a fuel stabilizer to prevent fuel system problems. Consider having the carburetor professionally cleaned if you suspect a problem.

4. Uneven Cutting

An uneven cut or scalping of the grass can be frustrating and detract from the appearance of your lawn. Several factors can contribute to this problem:

• Dull or Damaged Blade: A dull or damaged blade cannot cut the grass cleanly, resulting in an uneven cut. Sharpen the blade regularly and replace it if it’s damaged.

• Uneven Tire Pressure: Uneven tire pressure can cause the mower deck to tilt, resulting in scalping in some areas and a higher cut in others. Check tire pressure before each use and inflate tires to the recommended pressure.

• Deck Height Adjustment: The deck height adjustment mechanism may be damaged or out of adjustment, preventing you from setting the desired cutting height. Inspect the mechanism for damage and adjust it as needed.

• Preventative Maintenance: Sharpen the blade regularly. Check tire pressure before each use. Inspect the deck for damage and ensure it is level.

5. Smoke or Burning Smell

Smoke or a burning smell coming from your lawn mower is a serious sign and should be addressed immediately. It could indicate:

• Oil Leak: An oil leak can cause smoke and a burning smell. Check the oil level regularly and inspect the engine for signs of leaks.

• Engine Overheating: Overheating can cause the engine to smoke and emit a burning smell. Ensure the cooling fins are clean and free of debris. Avoid mowing in extreme heat and take breaks during long mowing sessions.

• Exhaust System Problem: A problem with the muffler or exhaust system can cause smoke and a burning smell. Inspect the exhaust system for damage or blockage.

• Preventative Maintenance: Check the oil level regularly and change the oil according to the owner’s manual. Clean the cooling fins to prevent overheating. Inspect the exhaust system for any signs of damage or blockage.

Chenango Supply Company: Your Lawn Mower Service Experts

Chenango Supply Company is your trusted source for lawn mower service and repair in Venice, Florida. Their experienced technicians can diagnose and address any issues your mower may be experiencing. Their services include:

• Tune-Ups: Comprehensive tune-ups include cleaning the mower, lubricating moving parts, adjusting components, and replacing worn spark plugs, filters, and other parts.

• Blade Sharpening: Professional blade sharpening ensures a clean and even cut, promoting a healthy lawn and extending the life of your mower blade.

• Engine Repair: Their technicians can diagnose and repair a wide range of engine problems, from minor carburetor adjustments to major engine overhauls.

• Belt and Pulley Replacement: Worn belts and pulleys are replaced with high-quality parts to ensure smooth operation and prevent breakdowns.

• Preventative Maintenance: Regular preventative maintenance can help extend the life of your lawn mower, prevent costly repairs, and ensure it’s always ready for use.

Frequently Asked Questions (FAQs)

Q: How often should I service my lawn mower? A: It’s recommended to service your lawn mower at least once a year, preferably before the start of the mowing season. More frequent service may be necessary if you use your mower heavily or in demanding conditions.

Q: What type of oil should I use in my lawn mower? A: Refer to your owner’s manual for the recommended oil type and viscosity. Use high-quality oil designed for small engines. Using the wrong type of oil can damage the engine and reduce its lifespan.

Q: How can I prevent my lawn mower from overheating? A: Keep the cooling fins clean and free of debris. Avoid mowing in extreme heat. Take breaks during long mowing sessions to allow the engine to cool down.

Q: How do I know if my lawn mower blade needs sharpening? A: Inspect the blade for signs of damage, such as nicks, dents, or rounded cutting edges. If the blade is dull, it will tear the grass rather than cutting it cleanly. You may also notice the grass tips turning brown or frayed after mowing.

Q: Where can I find reliable lawn mower service in Venice, Florida? A: Chenango Supply Company offers expert lawn mower service and repair. Their experienced technicians can handle all your mower maintenance needs, from routine tune-ups to complex repairs.

By recognizing the signs that your lawn mower needs a service and following preventative maintenance tips, you can keep your mower running smoothly and extend its lifespan.

External Resources

• Lawn Mower Maintenance Tips from the University of Florida IFAS Extension
• Small Engine Repair Guide from the Environmental Protection Agency