Details
* Ribbed to eliminate flash-over and improve performance
* Highest quality ceramic insulators improve heat dissipation and electrical insulation to provide long term durability.
* More gaskets for peak performance
* Deep-seated copper core provides maximum engine efficiency at high and low speeds
* Projected insulator precision-engineered to prevent fouling and misfiring
* Nickel alloy tip prevents fouling, maximises performance and extends plug life.
These spark plugs are NGK - B6HS and are for a Yamaha 2B outboard engine up to the year 1992, Please check your hand book of your Outboard / Engine to see which spark plug you need and how many.






