- Using a spark plug with an incorrect heat range can cause it to overheat and burn out.
- Ensure you're using the spark plug recommended by the manufacturer.
2. Lean Fuel Mixture:
- A lean fuel mixture can cause the spark plug to run hotter than usual, leading to burnout.
- Check the carburetor settings and ensure enough fuel flows into the engine.
3. Overheating:
- Excessive heat inside the engine can damage the spark plug.
- Check the cooling system, ensuring the radiator is clean and coolant levels are adequate.
4. Faulty Ignition Coil:
- A weak or faulty ignition coil can deliver insufficient voltage to the spark plug, causing it to burn out.
- Inspect the ignition coil and replace it if necessary.
5. Damaged Spark Plug Wire:
- Damaged spark plug wires can cause resistance and reduce the voltage reaching the spark plug.
- Inspect the spark plug wire for cracks or wear and replace it if damaged.
6. Engine Issues:
- Severe engine problems, such as excessive piston blow-by or worn piston rings, can cause combustion gases to leak past the piston rings and enter the combustion chamber.
- This hot gas can damage the spark plug.
Note: It's always recommended to refer to the owner's manual for specific troubleshooting and maintenance information related to your model.
