July 31, 2007 Any jet-ski boasting a stroked-out, 1500cc motor straight from the Kawasaki Ninja ZX-12R should be treated with extreme caution – but since the 250-horsepower Jet Ski Ultra 250X was ...

The inventor of the personal watercraft was an unassuming Southern California man who enjoyed the thrill of desert dirt biking, but not the crashes. Clayton Jacobson II was inspired in the 1960s to ...

The Kawasaki Ultra Jet Ski offers several variations that give riders different levels of performance, utility, and features. The Ultra 160LX-S is the introductory model that borrows several features ...

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After launching the new 2011 Ninja ZX-10R superbike, Japanese manufacturer Kawasaki unveiled another powerful machine for adrenaline junkies. Not a two-wheeler this time, but one that can cut through ...