The Ultra 250x was the top of the range performance personal watercraft from Kawasaki from its creation until 2008. With an intercooled, supercharged 1500cc 4 stroke engine, the Ultra 250x developed 250 horse power.It was revered as the highest powered 3 seater personal watercraft of the year, that was until the year 2009 brought the Kawasaki 260x. The Ultra 260x has taken the place of the 250x and it has a 10 horsepower increase over the 250x making it have 260 horsepower.
There is now an Ultra 300X by Kawasaki for 2011.
Production Notes Year(s) of production: 2007-2008 (Was replaced in 2009 by the 260x)
ENGINE: JT1500B7F
Type: 4-stroke In-Line Four
Displacement: 1,498 cm3
Bore and Stroke: 83 x 69.2 mm
Compression ratio: 7.8:1
Induction: Roots-Type Supercharger With An Air-to-Water Intercooler
Maximum Boost: 11.4 psi
Valve system: DOHC, 16 valves
Fuel system: Digital Fuel injection: (ø60 mm x 1)
Ignition: TCBI with Digital Advance
Starting: Electric
Cooling: Inducted water
Lubrication: Forced lubrication, semi-dry sump
DRIVE SYSTEM Coupling: Direct drive from engine
Type: Axial flow, single stage
Thrust: 6,780 N {692 kgf}
Impeller diameter: ø155
Steering: Steerable Jet Nozzle
PERFORMANCE
Maximum power: 220 kW {300 PS}(250 HP) / 7,750 rpm
Maximum torque: 237 N.m {24.2 kgf.m} / 6,500 rpm
DIMENSIONS Overall length: 3,370 mm
Overall width: 1,190 mm
Overall height: 1,150 mm
Dry weight: 410 kg
Fuel capacity: 78 litres
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