D-Shape outer electrode with new material and center electrode with Ruthenium!
As a dedicated Spark plug for two-wheeled vehicles, we have developed a variety of Spark plug performance requirements (acceleration, durability, dirt resistance, fuel economy, start-up, etc.). ) with improved.
The D-shaped outer electrode (D-Shape outer electrode) and the Ruthenium blended center electrode provide outstanding combustion efficiency..
D-Shape outer electrode is shaped to prevent obstructing the flow of the mixture! It leads the mixture to the spark gap efficiently..
The D-Shape outer electrode is designed to prevent the flame from spreading. Ideal combustion close to spherical shape is realized..
About the shape of the plug terminal] ● Select the shape of the terminal (terminal) that matches the installation side of the engine and plug cord.. There are four types of plug terminals:'integrated type', 'separated type', 'screw type' or 'punch rivet type'. 'Integrated type' and 'punch rivet type' are mainly used for 4-wheel vehicles, 'screw type' is used for motorcycles, and 'separated type' is used for both. Also, though the terminal of 'separate type' will go off, you cannot remove ones of 'integrated type' or 'punch rivet type'. You will break the terminal if you force to do so. If you are to use 'separate type' as 'screw type', remove the terminal nut. If you are using with the terminal nut, make sure that it is not loosened, and if is, retighten it lightly using a plier.