Yamaha YZ250F
Type of motorcycle
From Wikipedia, the free encyclopedia
The Yamaha YZ250F is a motocross motorcycle first released in 2001 by Yamaha. It features a DOHC, four-stroke engine and initially had a steel frame and subframe in 2001–2002. In 2003 it received an aluminum subframe, which was replaced in the 2006 model with an all-aluminum frame.
ManufacturerYamaha Motor Company
Production2001–present
Engine249 cc (15.2 cu in) single-cylinder, water-cooled, four-stroke, DOHC
2007 Yamaha YZ250F | |
| Manufacturer | Yamaha Motor Company |
|---|---|
| Production | 2001–present |
| Class | Motocross |
| Engine | 249 cc (15.2 cu in) single-cylinder, water-cooled, four-stroke, DOHC |
| Bore / stroke | 77 mm × 53.6 mm (3.03 in × 2.11 in) |
| Power | 42.9 hp (32.0 kW)[1] |
| Torque | 29.5 N⋅m (21.8 lbf⋅ft)[1] |
| Transmission | 5-speed |
| Suspension | KYB |
| Brakes | disc (front, back) |
| Tires | 80/100-21, 110/90-19 |
| Wheelbase | 57.8 in (1,470 mm) |
| Dimensions | L: 85 in (2,200 mm) W: 32.5 in (830 mm) H: 51.2 in (1,300 mm) |
| Seat height | 38.7 in (980 mm) |
| Weight | 204 lb (93 kg) (dry) |
| Fuel capacity | 1.6 US gal (6.1 L; 1.3 imp gal) (2024 model) |
| Related | Yamaha YZ450F |
The YZ250F has been praised for combining the broad-power characteristics of a four-stroke engine with the light handling more common in smaller, 125 cc two-stroke motorcycles.[2]
Despite the similar name to the YZ250, very few parts have been shared between the models through their history.
Significant advances
| 2003 | Automatic decompression exhaust cam |
| 2006 | Aluminium frame |
| 2010 | New engine |
| 2010 | New engine layout, with lower center of gravity |
| 2014 | Rear slant cylinder, 4-valve head, fuel injection |
| 2018 | Electric starter |
See also
Wikimedia Commons has media related to Yamaha YZ.
