| General information | 
  
    | Motorcycle name | Yamaha YZ 426 F | 
    | Year | 2002 | 
    | Category | Cross / motocross | 
    | Rating | 3.5   Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. | 
    
        | Engine and transmission | 
  
    | Displacement | 426.0 ccm (25.99 cubic inches) | 
    | Engine type | Single cylinder, four-stroke | 
    | Engine details | Titanium valves | 
    | Power | 47.0 HP (34.3  kW)) @ 9800 RPM | 
    | Torque | 40.0 Nm (4.1 kgf-m or 29.5 ft.lbs) @ 7800 RPM | 
    | Max RPM | 11600 | 
    | Compression | 12.5:1 | 
    | Bore x stroke | 95.0 x 60.1 mm (3.7 x 2.4 inches) | 
    | Valves per cylinder | 5 | 
    | Fuel system | Carburettor. Keihin | 
    | Ignition | digital CDI | 
    | Cooling system | Liquid | 
    | Gearbox | 5-speed | 
    | Transmission type | Chain  (final drive) | 
    | Clutch | Wet, multiple discs, cable operated | 
    
        | Chassis, suspension, brakes and wheels | 
  
    | Front suspension | Kayaba cartridge upside-down | 
    | Front wheel travel | 300 mm (11.8 inches) | 
    | Rear suspension | Kayba single shock | 
    | Rear wheel travel | 315 mm (12.4 inches) | 
    | Front tire | 80/100-21 | 
    | Rear tire | 110/90-19 | 
    | Front brakes | Single disc | 
    | Diameter | 250 mm (9.8 inches) | 
    | Rear brakes | Single disc | 
    | Diameter | 240 mm (9.4 inches) | 
    
        | Physical measures and capacities | 
  
    | Dry weight | 105.0 kg (231.5 pounds) | 
    | Power/weight ratio | 0.4476 HP/kg | 
    | Seat height | 998 mm (39.3 inches) If adjustable, lowest setting. | 
    | Overall height | 1303 mm (51.3 inches) | 
    | Overall length | 2171 mm (85.5 inches) | 
    | Overall width | 827 mm (32.6 inches) | 
    | Ground clearance | 375 mm (14.8 inches) | 
    | Wheelbase | 1490 mm (58.7 inches) | 
    | Fuel capacity | 8.00 litres (2.11 US gallons) | 
    | Oil capacity | 1.70 litres (1.8 US quarts) | 
    
        | Other specifications | 
  
    | Starter | Kick | 
| Update specs | Report missing specs or required updates. | 
    
        | Maintenance and service specs * | 
  
    | Engine oil | Yamalube 10W-40 | 
    | Oil filter | K&N KN-142 | 
    | Spark plugs | NGK CR8E | 
    | Chain size | 520 | 
    | Chain links | 114 | 
    | Sprockets | 14/49 (front/rear) | 
    | Tire pressure front | 15 PSI (1 Bar or 100 kPa) | 
    | Tire pressure rear | 15 PSI (1 Bar or 100 kPa) | 
| *) Always verify maintenance and service data with the bike owner's manual. | 
    
        | Further information | 
  | Insurance costs | Compare US insurance quotes from the nation's top providers. | 
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. | 
| Ask questions | Join the 02 Yamaha YZ 426 F discussion group or the general Yamaha discussion group. | 
| Related bikes | List related bikes for comparison of specs. | 
    
        | Compare with another motorcycle | 
  |  | 
|  | 
  
 
	  Pictures, trademarks and logos of third parties are the exclusive 
   property of the respective owners. Technical specifications are subject to change without notice.