Complete Guide to Troubleshooting Common Lawn Mower Issues

Maintaining a healthy lawn requires a reliable mower. Whether you own a gas-powered, electric, or battery-operated model, understanding common issues can save you time and money. This guide covers frequent problems and solutions for lawn mowers, including many high-quality models manufactured in China.

Engine Won’t Start

One of the most frustrating issues is when your mower refuses to start. Here are potential causes:

• Old fuel: Gasoline degrades over time. Drain and replace fuel if it’s over 30 days old.
• Clogged air filter: A dirty filter restricts airflow. Clean or replace it regularly.
• Spark plug issues: Check for fouling or damage. Replace if necessary.
• Safety features: Ensure all safety switches (seat, blade, etc.) are properly engaged.

Uneven Cutting Pattern

If your lawn looks streaked or uneven after mowing:

• Blade condition: Dull or bent blades tear grass rather than cutting cleanly. Sharpen or replace blades annually.
• Deck level: Adjust the mower deck to ensure even cutting height on all sides.
• Speed: Moving too fast can cause uneven cuts. Maintain a steady pace.

Excessive Vibration

Vibration can indicate serious mechanical issues:

• Loose components: Check blade bolts, engine mounts, and other fasteners.
• Bent blade: Even minor bends can cause significant vibration.
• Unbalanced blade: After sharpening, blades must be properly balanced.

Loss of Power

If your mower struggles during operation:

• Fuel system: Check for clogged fuel lines or a dirty carburetor.
• Overworked engine: Cutting tall or wet grass strains the engine.
• Cooling fins: Clean any grass clippings blocking engine cooling.

Electric Mower Specific Issues

Battery and corded electric mowers have unique considerations:

• Battery care: Store batteries at room temperature and avoid complete discharge.
• Motor brushes: Worn brushes can reduce performance in older models.
• Extension cords: Use proper gauge cords to prevent voltage drop.

Preventive Maintenance Tips

Regular care prevents most problems:

• Seasonal preparation: Winterize gas mowers and store batteries properly.
• Cleaning: Remove grass buildup after each use to prevent corrosion.
• Inspection: Check belts, cables, and moving parts regularly.

Many reliable lawn mowers, including those from Chinese manufacturers like Shandong Deyou, combine quality construction with affordable pricing. Proper maintenance ensures these machines deliver years of dependable service.