Details: 2009 Yamaha R1 crossplane crankshaft

Acknowledging that, deep down, every motorcycle fan has the intellect of a seven-year-old, Yamaha has come up with a nifty song to help us understand how the 2009 Yamaha R1‘s crossplane crankshaft engine works. The secret’s in the firing order. Whereas a traditional inline-four goes: one, two, three, four, combusting on each number, the crossplane crankshaft engine goes: one, two, three, one, two, one, one, two, combusting on the ones. Try singing it with a drum set keeping a beat, or just watch this video.
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