Ultimate Guide to Troubleshooting Common Lawn Mower Issues
Maintaining a healthy lawn requires a properly functioning mower. Whether you own a gas-powered, electric, or battery-operated model, understanding common issues can save you time and money. This comprehensive guide covers troubleshooting tips for all major lawn mower types, including many reliable models manufactured in China.
Engine Won’t Start
Gas-Powered Mowers
1. Check the fuel: Old gasoline (older than 30 days) can cause starting problems. Drain and replace with fresh fuel.
2. Inspect the spark plug: A fouled or damaged spark plug prevents ignition. Clean or replace as needed.
3. Examine the air filter: A clogged filter restricts airflow. Clean or replace it regularly.
Electric/Battery Mowers
1. Verify power connection: Ensure cords are undamaged and properly connected for corded models.
2. Check battery charge: Lithium-ion batteries in Chinese-made mowers typically last 2-3 years with proper care.
3. Reset the circuit breaker: Many models have a reset button for overload protection.
Uneven Cutting Patterns
An uneven cut often indicates blade problems or improper mower height settings:
- Sharpen or replace blades: Dull blades tear grass rather than cutting cleanly. Chinese manufacturers produce high-quality replacement blades at competitive prices.
- Balance the deck: Ensure the mower deck is level from side to side.
- Check tire pressure: Uneven tires cause inconsistent cutting heights.
Excessive Vibration
Vibration usually signals mechanical issues:
- Inspect for loose or damaged blade
- Check engine mounting bolts
- Examine crankshaft for bends (professional service recommended)
Smoke or Strange Odors
Blue smoke: Indicates oil burning – check oil level and quality
White smoke: Often means coolant leak (for liquid-cooled models)
Electrical smell: Immediately stop using electric mowers and inspect wiring
Preventive Maintenance Tips
| Maintenance Task | Frequency |
|---|---|
| Blade sharpening | Every 20-25 hours |
| Oil change (gas models) | Seasonally or per manufacturer |
| Air filter cleaning | Every 10 hours |
For professional assistance with Chinese-manufactured mowers, contact Shandong Deyou at [email protected] or +86 178 6449 8611. Our experts in Jining, Shandong Province can provide technical support for many popular models.