Spark plug moto BR10ECS

Spark plug motorcycle BR10ECS

To avoid damaging the engine, it is important to choose a spark plug with the appropriate heat rating.
A spark plug that is too cold transmits more heat to the cylinder head, and the electrodes tend to become sooty since the temperature necessary for the spark plug to clean itself automatically is not reached.
A spark plug that is too hot transmits less heat to the cylinder head, and in this case the cylinder can overheat and seize.