The Yamaha square nose Superjet was the first of what be a very long line of Yamaha Waverunner watercraft in the stand-up, jet ski  world. First produced in 1990, the ski was powered by a modest, 650cc 2-stroke, 2 cylinder engine. This engine was replaced in 1993 by the 701cc engine that would go to become one of the most popular engines ever to be put in a watercraft. The square nose Superjet would rise to fame during one of jetski racing’s most popular time frames. The early to mid nineties saw the aftermarket pour their efforts into making performance parts that would make these skies faster and better handling. From engine performance parts to scoop grates, ride plates and light weight handle poles, there are endless parts available to improve the Superjet’s performance.