Yamaha YZ250F - HISTORY
With the emergence of 4-stroke motocross machines at the end of the 1990s, led by the Yamaha 400 YZF, Yamaha naturally wanted to develop competitive four-stroke motorcycles for other displacement classes. After the YZ 400 (1997) and the YZ 426 (2000), Yamaha turned its attention to the 250cc class in 2001. The 250 YZF was the first 250cc motocross bike with a four-stroke engine to compete against 125cc bikes with two-stroke engines. It was heavier than its rivals at the time, but had a more powerful and easier-to-use engine, which made it a real weapon and a serious competitor.
The Yamaha YZ250F was originally equipped with a steel frame, but received its first facelift in 2003 and a completely new aluminum frame in 2006. In 2010, the aluminium frame was improved and the fairing was completely modernized. The biggest change followed in 2014: a new chassis and, above all, a new injection engine with a reversed cylinder like on the 450. Thanks to the high-torque, responsive engine, the YZ250F became one of the most popular motorcycles in its class. In 2019, it received a new, more agile and slimmer chassis.
The Yamaha 250 YZF is a powerful motocross motorcycle for competition and leisure riding. It is not approved for road use, but is designed for use on racetracks / motocross trails.
Yamaha 250 YZF - TECHNICAL DATA
Yamaha YZF 250 ENGINE
- Single-cylinder 4-stroke engine 249 cc
- Bore x stroke: 77 x 53.6 mm
- 5 valve cylinder head with two overhead camshafts
- Compression ratio: 13.5:1
- Liquid cooling
- Carburetor Keihin FCR 37 mm
- 5-speed gearbox
- Power: n.a.
Yamaha YZ250F chassis
- Aluminium frame with double cradle
- Tank: 6.4 L
- Seat height: 991 mm
- Weight, full tank: 102 kg
- Front brake: 250 mm brake disk / 2-piston brake caliper
- Rear brake: 245 mm brake disk / 1-piston brake caliper
- Front wheel: 80/100-21
- Rear wheel: 100/90-19
Yamaha 250 YZF SUSPENSION
- Kayaba upside-down fork, 48 mm
- Fork travel: 300 mm
- Kayaba mono shock absorber
- Rear suspension travel: 310 mm
Yamaha YZF 250 IN OUR SHOP
In our online store you will find a large selection of spare parts for your YZF 250.
For regular maintenance and minor repairs, we have engine oil, gear oil, spark plugs, levers and brake pads.
For larger projects, we stock pistons, crankshafts, gearbox bearings and clutches for the engine, as well as fork seals, linkage bearings and other suspension parts.
For racing drivers, we also offer tuning parts such as exhausts, reed valves, oversize brake kits or holeshot kits and other performance-enhancing parts.
