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Virtually everyone knows that a spark plug ignites the fuel/air mix that explodes and pushes the piston down the cylinder. It all sounds pretty straightforward. But did you know that everything from the size and shape of the combustion chamber through to the design and angle of the valves have an influence on the type of spark plug? Which means that it's crucial that you always use a Genuine Yamaha plug.

To get the best performance and fuel economy out of your engine it’s vital to ensure that you always use the exact plug type and grade specified by Yamaha. If you’re unsure you can ask your Yamaha Official dealer, but whatever you do, never fit a non-approved plug. Apart from restricting performance, the wrong plug can cause damage to the engine - so stay safe and choose Genuine Yamaha every time.