2012 Kawasaki Ultra 300x

Power is great. Power plus handling, even better. Power plus handling plus all the features a hardcore enthusiast wants in a personal watercraft? That's the best. With the incredible Jet Ski® Ultra® 300X — producing 300 horsepower, making it the most powerful Jet Ski ever built — riders get the massive power they desire. Details & Features. Class-shattering 300 horsepower for outstanding performance • Strong, light, deep-V hull offers both stability and great cornering performance • Massive, industry-leading storage capacity lets you bring your gear with you • Largest fuel tank in class keeps the fun going longer • Five-position adjustable handlebar accommodates a variety of riders • Separate keys for full power operation and Smart Learning Operation 300-horsepower Supercharged Engine • Supercharged and intercooled 1,498cc, liquid-cooled inline four-cylinder engine • Cast pistons with machine finishing for excellent durability • Hardened nickel valves offer superior heat resistance and reliability • 33.4mm intake and 28.3mm exhaust valves • Two-layer oil cooler offers efficient cooling • Large cam chain handles enhance engine power • Reinforced crankcase adds to engine’s durability and reliability • Heat-resistant plastic intake manifold for weight savings • Optimum cylinder wall temperature is maintained by a check valve between the cylinder jacket and water muffler that shuts water flow off above 2,000 rpm, keeping the cooling water inside the cylinder jacket • Precise power adjustments are easy with a throttle lever designed to prevent finger fatigue on longer rides Eaton Twin Vortices Roots-type Supercharger • Four-lobe design offers significant performance increase over standard roots-type unit • System force-feeds the engine two liters of air with every revolution, providing a stable supply of high-pressure intake air at all rpm • Delivers compressed air continuously, not in waves, for smoother power delivery • Produces large amounts of boost even at low rpm for instant and powerful acceleration right off of idle • Provides a very flat and meaty torque curve with step-free power across the entire rev range without any of the lag associated with turbochargers • Produces more low-rpm boost than competitive or aftermarket systems, with a maximum of 17 psi of boost pressure • Two different air bypass valves are used to prevent over boosting at low and medium rpm