2013 Yamaha WR250R Dual Sport Rocky Mount NC
29-10-2014, 08:25. Author: Twin County Motorsports of Rocky Mount,
2013 Yamaha WR250R, 2013 Yamaha® WR®250R Technologically Advanced Dual Purpose Machine The WR®250R offers the best of both worlds, a light and nimble aluminum frame, a powerful liquid engine with titanium valves, and long travel suspension for off-road adventures and all the equipment to make your on-road travels just as much fun. Features Directly descended from our YZ® motocrossers and WR® off-road machines, the WR®250R is here to make Yamaha s off-road prowess street accessible. Not exactly an enduro model and not a streetbike either, the WR®250R is for riders who ride off-road more than on. 250cc liquid-cooled, DOHC engine with two titanium intake valves and two steel exhausts, forged piston and plated cylinder for outstanding durability. Pentroof combustion chamber with downdraft-type straight intake helps make excellent power across the rev band, with maximum power at 10,000 rpm. First use of fuel injection on a 250 Yamaha on/off-road bike. The system relies on input from a crank sensor, intake air pressure sensor and throttle position sensor feeding a compact ECU to provide optimum combustion. An ECU-controlled EXUP® exhaust valve, along with an electronic intake control valve, broadens the powerband. High lift cams have WPC surface treatment in which the surface is sprayed with fine powder at over 100 meters per second to increase surface hardness. Three-axis engine layout keeps the engine compact. Wet sump tucks between frame rails to keep the engine height down. Rare earth-type ACM alternator keeps the weight down while providing all the current needed to run the FI and lighting systems. Direct ignition coil sits atop the spark plug another first on a Yamaha on-off road model.
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