Jetskishop.info

Jet Ski is the brand name of personal watercraft (PWC) manufactured by Kawasaki Heavy Industries. The name, however, has become a genericized trademark for any type of personal watercraft. Jet Ski (or JetSki, often shortened to "Ski") can also specifically refer to versions of PWCs with pivoting handlepoles known as "stand-ups." Sit Down PWCs are called "waverunners".

"Jet Ski" became foremost the colloquial term for stand-up personal watercraft, because in 1973 Kawasaki was responsible for a limited production of stand-up models as designed by the recognized inventor of Jet Skis, Clayton Jacobson II.[2] In 1976, Kawasaki began mass production of the JS400-A. JS400s came with 400 cc two-stroke engines and hulls based upon the previous limited release models. It became the harbinger of the success Jet Skis would see in the Jetters market up through the 1990s.

Source: wikipedia.org