It has been confirmed that Kawasakis new Jet Ski will be an Ultra 300X that is equipped with an update engine which produces 290ps (strange the fact to combine the 300X logo with the 290ps, in terms of marketing). This engine utilizes a new Roots type Supercharger that according to our source it has been manufactured by an American company. Eaton recently released a Supercharger specially designed for personal watercraft use (not the pictured one) and we speculate that Kawasaki will use the particular one to the update engine of the new Ultra. On the 5th of October Kawasaki will make an official launch of 2011 Jet Ski line up.
