Twenty years ago, Yamaha introduced the world's first low emission, four-stroke personal watercraft that changed the industry forever – the Yamaha FX140. The FX140 engine was based on the power source of the legendary R-1 motorcycle. However, engineers had to “tweak” some things before this engine was completely water ready. The first tests started in 1998 with the first-generation MR-1 engine. According to insiders, Yamaha spent $10 million on development before reaching the final design. The final version of the FX140 engine was a 998cc, 4-stroke, 4-cylinder power plant. It featured a fuel-injection system, double-overhead cams, and five valves per cylinder. Best of all, you still these game-changing WaveRunners on the water today. #yamahawaverunners