Yamaha Genesis engine

"Genesis" is Yamaha's marketing name for a range of innovative, high-performance multi-valve four-stroke motorcycle engines.

A deeper fuel tank also gave a small advantage as it centralized weight and moved the CoG lower.

What could be argued is that the Genesis concept (not just the inclination of the engine, although on the FZ750 was a radical 45 degrees, on the FZR1000 a less radical 35 degrees, a feature now generally universally used in the modern (post 1990) sport bike thus allowing downdraft air induction and airbox pressurization, but also the use of beam frames as opposed to spine or perimeter frames previously commonly used) set the architecture for the modern sport bike.

Other applications ranged from the Supersport YZF-R6 and YZF-R1 models, using electronic fuel injection with YCCT and YCCI, to the less extreme but still powerful Yamaha FZ6 (4 valve per cylinder) and FZ1 Fazer line, which had a simpler fuel injection design but was the same basic engine design.

Throughout its long period of production, the Genesis range has successfully provided performance and reliability.