With its sharp design language, powerful engine and agile handling, the Kawasaki Jet Ski Ultra 310X has all it needs to impress even the most demanding jet-ski lovers.

The Kawasaki Jet Ski Ultra 310 X is propelled by a supercharged and intercooled, four-stroke, DOHC, four valves per cylinder, inline four-cylinder engine which delivers more than enough power to deal effortless with anything you ask of it. The engine is fueled by a generous fuel tank with a capacity of 20.6-gallon.

As far as practicality is concerned, the Kawasaki Jet Ski Ultra 310 X features a large-capacity, fully sealed storage area with detachable storage tray, a detachable drink holder with space for two drink bottles and a compact integrated underseat storage.

The Kawasaki Jet Ski Ultra 310 X can is offered with a base price of $15,299.

Hit the jump for more information on the Kawasaki Jet Ski Ultra 310X.

  • 2015 Kawasaki Jet Ski Ultra 310X
  • Year:
    2015
  • Engine:
    Supercharged and intercooled, four-stroke, DOHC, four valves per cylinder, inline four-cylinder
  • Energy:
    Digital Fuel Injection (DFI)
  • Displacement:
    1498 cc
  • Price:
    15299

Overview

2015 Kawasaki Jet Ski Ultra 310X High Resolution Exterior
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This Supercharged Personal Watercraft Guarantees Plenty Of Thrills

Kawasaki surprised the entire industry when it debuted the Jet Ski® Ultra® 300X in 2011. This flagship Jet Ski remains the most powerful and comfortable Personal Watercraft (PWC) on the water, and Kawasaki is keeping that tradition alive with the 2015 Jet Ski® Ultra® 310X. Just as in the past, the Ultra 310X sets the industry standard for powerful, smooth-riding, all-day comfort from a personal watercraft.

Thanks to its supercharged inline four-cylinder engine, the monumental horsepower of the X-model is always apparent. The Ultra 310X astonishes with 310hp1, which will propel the sporty-handling hull through rough water with ease and comfortably haul three adults in addition to an impressive payload. Power, handling and versatility: Ultra 310X brings it in ways the competition simply can’t.

2015 Kawasaki Jet Ski Ultra 310X Key Features:

2015 Kawasaki Jet Ski Ultra 310X High Resolution Exterior
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• Supercharged DOHC inline four-cylinder engine produces a staggering 310hp1
• Eaton TVS constant-displacement supercharger and liquid-cooled intercooler provide instant and consistent boost for outstanding performance throughout the rev range
• Impeller features a three-blade design that gives the 310X great initial acceleration
• Strong and light, the 310X’s deep-V hull offers superb straight-line tracking and precise cornering performance
• Instrumentation includes a fuel consumption function, boost meter scale, riding modes, external water and air temperature, clock, time, trip and hour meters, tachometer (in digital or graph displays), speedometer and max speed functions
• Industry-leading, 56-gallon storage capacity lets you bring your gear with you
• 20.6-gallon fuel tank is the largest in its class, providing tremendous range for long rides
• Separate keys for full power operation and Smart Learning Operation

2015 Kawasaki Jet Ski Ultra 310X Features and Benefits:

2015 Kawasaki Jet Ski Ultra 310X Exterior
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310hp Supercharged Engine

• 1,498cc, liquid-cooled inline four-cylinder engine makes 310hp Eaton TVS constant-displacement supercharger and liquid-cooled intercooler provide instant and consistent boost for outstanding performance throughout the rev range
• Heat-resistant plastic intake manifold is shaped for low- to mid-range power
• Cast pistons feature ring land V-grooves for better oil retention
• Hardened nickel 33.4mm intake and 28.3mm exhaust valves offer superior reliability
• Two-layer oil cooler offers efficient cooling
• Large cam chain increases reliability in a supercharged engine application
• Reinforced crankcase adds to engine’s durability and reliability
• Fuel pump provides high fuel flow volume for increased power and better fuel efficiency
• Thick water jackets improve cooling performance
• Check valve system between the cylinder jacket and water muffler that shuts water flow off above 2,000rpm, to keep the cooling water inside the cylinder jacket for optimum cooling performance
• Two piston-cooling oil jets increase piston cooling
• Oil pan features baffle plates to prevent oil slosh during tight turns or extreme acceleration/deceleration
• Crankcase oil return holes are large for quick oil return to the oil pan

Eaton Twin Vortices Roots-type Supercharger

2015 Kawasaki Jet Ski Ultra 310X Exterior
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• Four-lobe, constant-displacement design offers significant performance increase over standard Roots-type unit
• System force-feeds the engine two liters of air with every revolution, providing a constant 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 flat and linear torque curve with lag-free power across the entire rev range. Produces more low-RPM boost than competitive or aftermarket systems, with a maximum of 17psi boost pressure
• Two different air bypass valves are used to prevent over boosting at low and medium RPM

Air-to-Water Intercooler

2015 Kawasaki Jet Ski Ultra 310X High Resolution Exterior
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• Efficiently cools high-pressure intake air – cooler air is denser and makes more power
• Liquid-cooled intercooler design maintains consistent thermal performance

Digital Fuel Injection System

2015 Kawasaki Jet Ski Ultra 310X High Resolution Exterior
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• High-flow fuel injectors with four orifices are fitted for combustion efficiency
• Single throttle body features a large, 60mm bore diameter

Exhaust

• Four-into-two-into-one exhaust system routes the exhaust pipe upward and allows the smoothest path for exhaust gases, maximizing exhaust efficiency

160mm Jet Pump

2015 Kawasaki Jet Ski Ultra 310X High Resolution Exterior
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• Large-diameter, race-developed 160mm jet pump efficiently converts the Ultra 310X output into instantaneous thrust
• Pump is designed to deliver consistent output and good “bite” even in rough water conditions
• Impeller features a three-blade design that gives the Ultra 310X greater initial acceleration
• Eight-vane intake guides and regulates the flow of water to the impeller for consistent, efficient and powerful propulsion

Ride Plate

2015 Kawasaki Jet Ski Ultra 310X High Resolution Exterior
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• Features a groove from the center to the rear of the plate to enhance straight-line tracking

Electric Trim Control System

• Allows the angle of the jet pump nozzle to be controlled to adjust the attitude of the hull to suit water surface conditions and riding styles
• Adjustment range is plus or minus 8-degrees from standard

Electronic Throttle Valve (ETV) with Cruise Control

• Fuel Economy Assistance mode provides significant fuel savings and increased range
• Convenient electronic cruise control smoothly holds a set speed from 5mph up to top speed
• Accelerator Position Sensor (APS) converts throttle lever input to an electronic signal that’s used to control the throttle valve via an electric motor for crisp and smooth throttle response
• Redundancy in the system helps ensure control is maintained in case of failure
• One-touch, push-button 5mph mode allows hassle-free no-wake zone riding
• Economical Riding Indicator mode can be viewed on a graph on the LCD info screen
• Eco Mode reduces and smoothes engine performance while conserving fuel

Strong, Light Hull Design

• Designed to emulate the performance of Kawasaki’s IJSBA championship-winning race machines
• Inner bow is extremely light with ample strength to handle the engine’s power output
• Exemplary straight-line tracking and responsive handling in both calm and rough-water conditions set performance benchmarks for the class
• The lower hull is specially designed to distribute the engine and power delivery loads over a wide area
• Deep-V hull design enables a steep bank angle. This reduces the lateral g-loads imposed on riders during turns, allowing them to better concentrate on riding
• The 22.5-degree V-angle at the bottom of the hull helps reduce unwanted spinouts during sharp turns
• Delivers the neutral handling and turning characteristics for which Kawasaki Jet Ski watercraft are famous
• Bottom of the hull slants upward steeply from the center section to the bow, so the Ultra 310X can penetrate swells and waves with less shock, pushing through waves rather than bouncing over them at high speeds
• Integrated sponsons extend from the hull, providing wallow-free straight-line performance and contributing significantly to the excellent maneuverability while helping to retain the narrow hull design

Quattro KSD

• The Kawasaki Splash Deflector uses three bottom-mounted ridges and an additional deflector mounted at the top to deflect water splashing forward from under the hull
• Whether turning or strait-line riding at any speed. The Quattro KSD minimizes spray, allowing greater rider concentration

Kawasaki Smart Steering®/SLO Mode

• Kawasaki Smart Steering® (KSS®) monitors steering input and engine speed and, when certain conditions are met, intelligently raises RPM to help initiate a turn
• Smart Learning Operation (SLO) allows newer riders to become familiar with the handling and response of this Jet Ski watercraft at a more relaxed pace
• Two separate keys, one for SLO mode and one for full-power operation, help prevent confusion over which setting is in use

Comfort and Convenience

• Roomy three-passenger seat offers ample support for all-day comfort whether riding stand-up solo, seated or with passengers
• Passenger handrail is located in an ergo-friendly location to reduce passenger fatigue and features a redesigned handle for better grip
• Optimally curved mirrors are ideal for a wider rear view and are mounted to the upper deck
• Ergonomic deck design gives plenty of legroom
• Left-side reverse lever is ergonomically designed for easy operation
• Quick and easy hose connection allows a simple method to flush sea water out of the engine

Capacious Storage

• The Ultra 310X offers a class-leading 56-gallons of total storage capacity
• Large-capacity, fully sealed storage area with detachable storage tray offers ample room for recreational equipment
• A detachable drink holder with space for two drink bottles is mounted on the center console
• Compact integrated underseat storage area is Ideal for small items like a ski rope

Extra-large Fuel Capacity

• 20.6-gallon fuel tank boasts more capacity than any machine in its class, extending range

Digital Instrumentation

2015 Kawasaki Jet Ski Ultra 310X Drivetrain
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• LCD screen features an easy-to-read face design
• Instrumentation includes a fuel consumption function, revised boost meter scale, riding modes, external water and air temperature, clock, time, trip and hour meters, tachometer (in digital or graph displays), speedometer and max speed functions
• ECO Indicator shows the rider when the speed and throttle opening is in the most efficient range

Specifications

Engine Supercharged and intercooled, four-stroke, DOHC, four valves per cylinder, inline four-cylinder
Displacement 1,498cc
Bore x Stroke 83.0 x 69.2mm
Compression ratio 8.2:1
Induction Eaton Twin Vortices Series Roots-type supercharger with air-to-water intercooler
Maximum Boost 16.8 psi
Cooling System Inducted water
Fuel System Digital Fuel Injection (DFI®) with 60mm throttle body
Ignition TCBI with digital advance
Starting System Electric
Propulsion System 160mm jet pump, axial-flow, single stage
Impeller Three-blade, oval-edge stainless steel
Thrust 1,890 lb
Lubrication Semi-dry sump system
Coupling Direct drive from engine
Oil Capacity 6.0 qt
Fuel Capacity 20.6 gal
Load Capacity 496 lb
Storage Capacity 56.0 gal
Overall Length 132.7 in
Overall Width 47.0 in
Overall Height 45.3 in
Seating Capacity Three-person
Color Choices Ebony / Metallic Phantom Silver
Warranty 12 Month Limited Warranty
Kawasaki Protection Plus™ (optional) 12, 24, 36, or 48 months
Price $15,299
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