Light, nimble, precise.
Ridden any winding, near-vertical goat trails lately?
Powerful, maneuverable, and a really low dry weight - did we mention electric starting?
Key Features: A YZ-bred advanced aluminum frame—carefully engineered from castings, forgings and extrusions—enhances handling while retaining legendary Yamaha feel and characteristics. Now there’s even more controllable power flowing from the high-revving five-titanium-valve engine—and it starts with the push of a button. Cool, digital enduro computer offers speedometer, clock, tripmeter, etc., in basic mode—or pace management functions such as timer, distance-compensating tripmeter, average speed, etc., when switched to race mode. California green sticker compliant.
Engine: 249cc liquid-cooled, DOHC four-stroke with 5 titanium valves delivers more low- and mid-range power than ever, with high over-rev capacity and crisp, linear throttle response. Revised camshafts, carburetion and TPS tuning, new exhaust and ignition systems work together to produce a quick-revving engine with even more low- and mid-range power. 37mm Keihin FCR flat-slide carburetor with throttle position sensor (TPS) ensures ultra-precise fuel/air mixing and lightning-quick throttle response. Revised transmission ratios in the five-speed gearbox-wider in 1st through 3rd, and closer in 4th and 5th.
Chassis/Suspension: All-new YZ-inspired aluminum frame helps reduce weight while optimizing mass centralization. An extensively tested assembly of aluminum forgings, castings and extrusions. The new WR frame retains legendary Yamaha handling and response. Removable aluminum rear subframe constructed of square-section tube for reduced weight. Fully adjustable 48mm cartridge type fork deliver precise, fade-free handling; fork protectors provide excellent tube coverage. Tapered swingarm adopts YZ-style linkage for controlled, compliant rear suspension action. Revised axle and holders reduce weight in a critical area. The Kayaba shock provides 12.0 inches of travel with adjusters for high- and low-speed compression damping, rebound and spring preload—and features a larger piggyback reservoir for excellent damping and fade resistance. New, wave disc brake rotors front and rear reduce unsprung weight and provide excellent performance. Front and rear calipers with aluminum pistons deliver strong stopping power with progressive feel. Lightweight 21-inch front and 18-inch rear wheels provide exceptional durability and reduced unsprung weight for optimal suspension performance. Premium Dunlops offer unbeatable, competition-spec traction and excellent wear.
Additional Features: YZ-derived bodywork, new engine covers and a thick new seat look great and feel excellent on long rides. ProTaper aluminum handlebar in forged triple clamp shaves weight and increases comfort. Wide footpegs are also lower for more comfort. Slim design lightweight fuel tank holds 2.1 gallons. One-piece, high strength, plastic skid plate shaves weight and offers great protection. Lightweight headlight and sweet LED taillight maximize visibility and draw less current. Adjustable front brake lever. Repackable aluminum muffler. Front wheel collar makes front wheel removal quick and easy.
2007 Yamaha WR250F
Engine Type: 250cc, liquid-cooled, 4-stroke, DOHC, 5-valve Bore x Stroke: 77mm x 53.6mm Compression Ratio: 12.5:1 Carburetion: FCR-MX37 x 1 Ignition: CDI Transmission: Constant mesh 5-speed/Wet, multiple-disc coil spring Final Drive: Chain Drive