- The VX™ Series is powered by a Yamaha MR-1™ four-stroke engine. This is a compact, ultra-lightweight, 110 horsepower, four-cylinder, 1052cc, DOHC, 20-valve, liquid-cooled engine for class-leading performance.
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- Electronic Fuel Injection (EFI): Delivers a smooth, high power output with low fuel consumption and low exhaust emissions.
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- Specially Designed, One-piece Cylinder and Crankcase Assembly: Provides tremendous engine rigidity that's lighter and stiffer than two-piece designs.
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- Slant Detection Switch: Electronic switch stops engine and oil pumps immediately if watercraft becomes overturned, protecting motor from water ingestion.
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- Dry Sump Lubrication: Uses two engine oil pumps to deliver lubricating oil to each moving part with water-jacketed sump and oil backflow protection.
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- Yamaha Engine Management System (Y.E.M.S.): An integrated, computerized management system that controls and adjusts such functions as ignition timing, fuel injection mapping, engine diagnostics and OTS. The OTS function of Y.E.M.S. activates when the operator releases the throttle lever and attempts to steer the watercraft. This assists the operator in turning while the watercraft is decelerating.
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- 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.
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- Corrosion Protection System: Sacrificial zinc anodes protect the engine from harmful galvanic corrosion. Stainless steel fasteners (nuts, bolts, hardware) provide a long service life.
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- Electronically Controlled, Variable Ignition Timing: For exact ignition advance control at all throttle positions and RPMs.
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