Spark plug NGK B9 ES

With a long base (19 mm) and a 14 mm thread (index B), the NGK B9ES is the standard product from NGK for large configs.

It is not equipped with built-in resistor.

Screwed onto the bolt from the top engine, it ensures the production of the spark required for ignition of the mixture from the carburetor or fuel injection system. In engine start time, it receives the high voltage ignition coil via the spark plug wire. When determined by the electronics housing, it will generate between its electrodes, the spark that starts the hot combustion that will push the piston.