839-cm3 gasoline engineThe RSX850i is powered by an 839-cm3, V-twin, four-cycle motorcycle gasoline engine. It produces 62 hp* and 59.5 lb-ft of torque (80.6 Nm). The advanced electronic controls and fuel-injection systems deliver superb starting, idling, and throttle response during operation. The engine offers the following performance and reliability features:Delivers exhilarating acceleration for a gravity-defying experience53-mph (85.3-km/h) top speedMounted transversely under the seats for a low center of gravity and more equal weight distribution between the front and rear axlesClosed-loop electronic fuel injection for superb performance, instant throttle response, consistent performance at high altitude, and hassle-free cold-weather starting (tested to -20°F, or -29°C) Dual oxygen sensors provide a more accurate air-to-fuel ratio balance between cylinders, increasing ability to start and overall engine performanceEngine control unit (ECU) cutout to protect critical drive components when the wheel speed far exceeds the vehicle speedLiquid cooled for quieter operation and optimal performanceFour-valve-per-cylinder design provides greater efficiency and fuel economyDry sump oiling systemMore efficiently lubricates the engine resulting in more available horsepower over a conventional wet sump designOil tank is more easily accessible for checking and filling the oilAllows for the engine to be mounted low in the vehicle to lower the center of gravityOil cooler in front of radiator to help keep engine oil at lower operating temperaturesFull-pressure lubrication systemSpin-on oil filter with drain bracket and oil drain valve enable easy servicingHigh-flow air filterSee-through coolant recovery tank permits the operator to check the coolant level without having to remove the radiator cap450-Watt maximum magneto charging systemAuto-start electronic ignition system optimizes ECU inputs for easy startingElectronic ignition is continuously variable for optimum engine power and provides fast, reliable startsExhaust system designLarge-diameter header pipes optimized for maximum horsepower output collect
in high-volume mufflerFull Stainless steel for longevity under severe loading and heatAdditional heat wrap ensures heat dissipation through the tail pipeSpark-arresting muffler is USFS approvedLarge 7.4-gal. (28-L) fuel tank *Engine hp is provided by the engine manufacturer to be used for comparison purposes only. Actual operating hp will be Less. Refer to the engine manufacturer’s Web site for additional information.