General information
Model:Yamaha YZ 426 F
Year:2002
Category:Cross / motocross
Engine and transmission
Displacement:426.00 ccm (25.99 cubic inches)
Engine type:Single cylinder
Stroke:4
Compression:12.5:1
Bore x Stroke:95.0 x 60.1 mm (3.7 x 2.4 inches)
Valves per cylinder:5
Fuel control:DOHC
Cooling system:Liquid
Physical measurements
Dry weight:105.0 kg (231.5 pounds)
Seat height:998 mm (39.3 inches) If adjustable, lowest setting.
Overall height:1,303 mm (51.3 inches)
Overall length:2,171 mm (85.5 inches)
Overall width:827 mm (32.6 inches)
Ground clearance:375 mm (14.8 inches)
1,490 mm (58.7 inches)
Chassis and dimensions
Front Suspension travel:300 mm (11.8 inches)
Rear Suspension travel:315 mm (12.4 inches)
Front tyre dimensions:80/100-21
Rear tyre dimensions:110/90-19
Front brakes:Single disc
Front brakes diameter:250 mm (9.8 inches)
Rear brakes:Single disc
Rear brakes diameter:240 mm (9.4 inches)
  ducati harley suzuki yamaha kawasaki