Spark plug moto BR9EG-N-8

Spark plug motorcycle BR9EG-N-8

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

For the following models
Honda CR 250 2005-2007