2009 VX Cruiser Yamaha Waverunner Jet Ski

The Powerplant * The VX Cruiser is powered by a Yamaha MR-1 four-stroke engine. This is a compact, ultra-lightweight, four-cylinder, 1052cc, DOHC, 20-valve, liquid-cooled engine for class-leading performance. * Electronic Fuel Injection (EFI): Delivers a smooth, high power output with low fuel consumption and low exhaust emissions. * Specially Designed, One-piece Cylinder and Crankcase Assembly: Provides tremendous engine rigidity that's lighter and stiffer than two-piece designs. * Slant Detection Switch: Electronic switch stops engine and oil pumps immediately if watercraft becomes overturned, protecting motor from water ingestion. * Dry Sump Lubrication: Uses two engine oil pumps to deliver lubricating oil to each moving part with water-jacketed sump and oil backflow protection. * Thermostatic and Pressure Controlled Cooling System: Water flow through the engine is controlled by a thermostat and pressure system and is maintained by a pressure control valve. * Corrosion Protection System: Sacrificial zinc anodes protect the engine from harmful galvanic corrosion. Stainless steel fasteners (nuts, bolts, hardware) provide a long service life. * Electronically Controlled, Variable Ignition Timing: For exact ignition advance control at all throttle positions and RPMs. The Jet Pump Propulsion System * The VX pump design is one of the most efficient pump configurations ever, increasing stream velocity and thrust while decreasing cavitation and prop spin. * Reverse: Allows the watercraft to be backed up off a trailer or out of tight spots where you cannot turn around easily. * Stainless Steel Impeller Housing Liner: For high durability, the liner maintains accurate clearance tolerances between the impeller and the housing.