has been credited as the inventor of the stand-up for Kawasaki
Jet ski became foremost the colloquial term for stand-ups because, in 1973, Kawasaki was responsible for a limited production of stand-up models as designed by the recognized inventor of jet skis, Clayton Jacobsen II.
The invention of both major types of PWC
is usually credited to Clayton Jacobsen II
of Arizona, originally a motocross enthusiast.
Credit for its design is given to Clayton Jacobsen II
Part of their WaveRunner line of watercraft, it was introduced in 1990 and has become one of the most popular personal watercraft in history.