YZ250 1998 Engine       Configuration Lubrication Bore & Stroke 68 x 68.8mm Ignition Capacity Charging system Compression Ratio 10.2: 1 Starter Kick starter  Maximum Power Transmission Gear driven primary drive Maximum Torque Gearbox 5 speed Fuel 38mm Keihin Clutch Cable operated multi plate wet clutch Chassis       Frame Wheels Front Dimensions  Weight: 218 pounds  Wheelbase: 58.3 inches  Length:  Seat Height: 39 inches  Ground Clearance 15.7 in Tyres Front: 80/100-21  Rear: 100/90-19  Front Suspension 11.8 inches travel Brakes Disc front and rear Rear suspension 12.4 inches travel Fuel Capacity Performance       Top Speed Fuel Economy Acceleration Colours: Blue & white Yamaha specifications Scale Models Yamaha Books