The spark plug plays a critical role in the ignition system of a motorcycle engine. If you don't change the spark plug when necessary, several issues can arise:
Decreased performance: Over time, spark plugs wear out, and the electrodes may become corroded or covered in deposits. This can result in a weaker spark, leading to incomplete combustion and reduced engine performance. Your motorcycle may experience a decrease in power, acceleration, and fuel efficiency.
Hard starting or difficulty in starting: A worn-out spark plug may make it more difficult for the engine to start. You might notice increased cranking time, frequent misfires, or the engine may not start at all.
Misfires and rough idling: A deteriorated spark plug can cause intermittent or constant misfires, resulting in a rough idle. This means the engine may run unevenly or experience vibrations when at rest.
Poor fuel economy: If the spark plug is not functioning properly, fuel may not burn efficiently in the combustion chamber. This can lead to increased fuel consumption and decreased fuel economy, costing you more money in the long run.
Engine damage: In extreme cases, a severely worn spark plug can lead to engine damage. The unburned fuel mixture can accumulate in the exhaust system, potentially causing overheating or damaging the catalytic converter.
It is important to follow the manufacturer's recommendations regarding spark plug replacement intervals specified in the motorcycle's owner's manual. Regularly changing the spark plugs as part of routine maintenance helps ensure optimal engine performance, fuel efficiency, and overall reliability.