YZ 250 F Specifications

Yamaha has been a leading developer of Motocross and Supercross motorcycles for many years. The manufacturer's YZ250 series of off-road motorcycles has won numerous competitions. The YZ250F, first marketed in 2001, has a four-stroke engine, compared with the two-stroke engine of the standard YZ250. The 2011 Yamaha YZ250F, featuring a lightweight aluminum frame, went on sale in September 2010 in white, red and blue colors.

  1. Physical Specifications

    • The YZ250F measures 32.5 inches wide, 85 inches long and 51.3 inches tall. It has a ground clearance of 14.1 inches and a wheelbase of 57.7 inches. The seat rests at a height of 38.9 inches. The overall weight of the YZ250F is 224.8 pounds. The fuel tank holds approximately 1.7 gallons of fuel.

    Engine Specifications

    • The 2011 YZ250F's four-stroke engine has dual overhead camshafts and five titanium valves with a capacitor discharge ignition. Compression ratio is 13.5 to 1 ratio. With a bore and stroke of 77mm x 53.6mm, the engine's total combustion chamber volume is 250cc. The transmission is a constant-mesh five-speed that powers the chain final drive.

    Chassis Specifications

    • The 2011 YZ250F has hydraulic single disc brakes on the front and rear. The front brake is a 250mm disc with a 245mm disc in the rear. The front suspension is a speed-sensitive fork with 11.8 inches of travel while the rear shock is a single shock with 12.0 inches of travel. The YZ250F uses 80/100-21 tires in the front and 100/90-19 tires in the rear.