1. Increased Engine Temperature:
Removing the spark arrestor allows for less restricted airflow through the exhaust system. While this can improve engine performance, it also causes the engine to run hotter. Excessive heat can damage the spark plug and shorten its lifespan.
2. Carbon Buildup:
The spark arrestor helps trap carbon particles and other debris from the exhaust. Without the spark arrestor, these particles can enter the engine's combustion chamber and accumulate on the spark plug. Carbon buildup can lead to insufficient sparking, engine misfires, and eventually spark plug failure.
3. Detonation and Pre-Ignition:
Eliminating the spark arrestor can affect the engine's exhaust gas flow dynamics. This may lead to increased exhaust gas temperatures, which can cause detonation or pre-ignition. These abnormal combustion events can put additional stress on the spark plug and accelerate its degradation.
It's important to note that not all ATVs will experience spark plug failure due to the removal of the spark arrestor. There are various factors that can affect the outcome, including the specific ATV model, riding conditions, engine tuning, and the presence of additional modifications.
Given the potential risks, it's generally not recommended to remove the spark arrestor unless the manufacturer expressly states that it can be done without compromising the engine's performance or durability.
