Vehicle Profile

The Jet Ski® Ultra® 310LX personal watercraft spares no luxury. Enjoy the class-leading performance of the most powerful Jet Ski watercraft that features the fully-integrated JETSOUND® audio system. A five-position adjustable handlebar ensures a comfortable ride position for a wide range of riders while a GPS mount integrated into the handlebar pad accommodates your device of choice. And adding to it all, the 1,498cc inline, four-cylinder, supercharged engine makes the Jet Ski Ultra 310LX the undisputed king of the water.

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Kawasaki Technology

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  • Discover Kawasaki's Technology

Economical Riding Indicator

Using high-precision electronics for engine management, Kawasaki models can achieve a high level of fuel efficiency. However, fuel consumption is greatly affected by throttle use, gear selection, and other elemen

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Electronic Cruise Control

Electronic Cruise Control allows the rider to maintain a desired speed (engine rpm) with the simple press of a button. Because the rider does not have to constantly maintain the throttle position, this system allows relaxed cruising.

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Electronic Throttle Valves

Electronic Throttle Valves allow the ECU to deliver the ideal amount of fuel and air to the engine.

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ERGO-FIT is an interface system that allows a wide range of riders to feel at one with their machine.

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Fuel Economy Assistance Mode

At the push of a handlebar-mounted button, riders are able to activate the Fuel Economy Assistance Mode, switching the ECU to a leaner fuel map in which ignition timing and fuel injection prioritize fuel economy. Rather than engine

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Top Features


  • Engine


    Supercharged and intercooled, 4-stroke, DOHC, four valves per cylinder, inline 4-cylinder



    Bore x Stroke

    83.0 x 69.2mm

    Compression Ratio


    Maximum Boost

    16.8 psi

    Cooling System

    Inducted water

    Fuel System

    DFI® with 60mm throttle body


    TCBI with digital advance

    Starting System


    Propulsion System

    160mm jet pump, axial-flow, single stage


    3-blade, oval-edge stainless steel


    1890 lb


    Semi-dry sump system

  • Totals

    Oil Capacity

    5.3 qt.

    Fuel Capacity

    20.6 gal.

    Load Capacity

    496 lb.

    Storage Capacity

    56 gal.

    Overall Length

    132.7 in.

    Overall Width

    47.0 in.

    Overall Height

    49.4 in.

    Curb Weight

    1073.8 lb.**

    Seating Capacity


  • General


    Eaton Twin Vortices Series Roots-type supercharger with air-to-water intercooler


    Direct drive from engine

    Color Choices

    Ebony/Atomic Silver

    Kawasaki Protection Plus (optional)

    12, 24, 36, or 48 months

  • Guarantee


    12 Month Limited Warranty

**Curb weight includes all necessary materials and fluids to operate correctly, full tank of fuel (more than 90 percent capacity) and tool kit (if supplied).

Specifications subject to change

KAWASAKI CARES: Ride responsibly. Kawasaki believes safety begins with us and continues with you. Always wear a USCG-approved personal flotation device, eyewear, and other appropriate safety apparel. Never ride under the influence of drugs or alcohol. Respect the rights of shoreline residents and other marine recreationists. Boat smart from the start. Take a Boating Safety course; for more information visit Jet Ski® watercraft are inboard powerboats and their use is subject to all applicable federal, state, and local boating laws. Read Owner’s Manual and all on product warnings. ©2021 Kawasaki Motors Corp., U.S.A.

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