Yamaha WR250F 2018


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Description

2018 Yamaha WR250F CONQUER DIRT We've taken our revolutionary YZ four stroke motocross technology and applied it to the enduro world. Rearward slanted engine, reversed cylinder, forward mounted fuel injection and a compact chassis are just some of the key features found on the WR250F. Delivering light, agile handling on tight trails, the WR is also a great choice for the experienced recreational rider too. Features may include: PERFORMANCE The latest generation YZ250F engine is the inspiration for the WR power plant. A forward mounted 44 mm fuel injection system supplies fuel to the 4-valve cylinder head, while the wrap around exhaust removes the spent charge and centralizes mass at the same time. A couple of items you won't find on a YZ250F is the WR's 6-speed transmission, electric starting and radiator cooling fan. Key improvement for 2018 are revised engine internals and ECU which help round out this top performing off-roader. FRAME & SUSPENSION The adjustable KYB suspension found on our WRs are considered by many to be the best in the business. Revised front and rear suspension settings for 2018 provides better rider feedback to improve performance and handling. The chassis design centralizes mass for fast, accurate, and agile handling. ENGINE Revised, YZ250F based, "reversed" liquid-cooled, 250cc, DOHC, 4-valve (titanium), 4-stroke, single with fuel injection & electric starting. Rearward slanted, "reversed" cylinder design. "Reversed" engine design (FI system is front mounted, exhaust exits from rear of cylinder) Electric start with auto decompression system. There is no main ignition switch on this model. Revised compact 4-valve cylinder head features a 13.5:1 compression ratio. Lightweight titanium valves with revised load-reduced valve springs. CHASSIS/SUSPENSION Revised YZ250F based, compact, lightweight "Bilateral Beam" aluminum frame. Lightweight, tapered aluminum swingarm. Lightweight detachable rear sub frame. Revised, YZ250F based, 48mm adjustable, inverted, Kayaba "SSS" cartridge fork offers 310mm (12.2") of wheel travel. Fork features a twin-chamber, "Speed Sensitive System" design meaning the damper unit is in a separate structure (completely separated air & oil chambers) which prevents aerated fork oil from entering the inner damper assembly & degrading its damping abilities. Since the inner damper is pressurized, it also eliminates bubbles forming in the oil. Fork also features a Transfer Control Valve (TCV).
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