YAMAHA YZ250 (2005-2006) Specs, Performance & Photos
Updated: 11 July 2022 • Maintained by:
Segment: Enduro/Offroad
Production years: 2005, 2006
3 Photos
Having received an all-new aluminium frame one year before, the 2005 YZ250 got a little more motocross edge thanks to some more tweaking and a new, hydroformed swingarm. The 48mm fork has also been revised, while the rear suspension got a top-drawer titanium spring, too.
The trim of the 2005 YZ250 includes multiple works-style parts and technologies to allow riders to benefit from the best bang their money can buy. Save for the engine, which is a 2-stroke, the frame is almost identical to that of the 4-stroke machines.
YAMAHA YZ250 2005-2006
YAMAHA YZ250 249
| engine specs | Type: | Liquid-cooled, reed valve-inducted, 2-stroke | Displacement: | 249 cm3 | Bore X Stroke: | 2.6x2.8 in OR 66 mm | Compression Ratio: | 9.1 – 10.6:1 | Horsepower: | 0/0 KW(hp)/RPM | Torque: | 35/7500 lb-ft/RPM OR 47/7500 Nm/RPM | Fuel System: | Keihin PWK38S |
|---|
| transmission specs | Gearbox: | 5 speed, manual | Clutch: | Multiplate wet clutch | Primary Drive: | - | Final Drive: | #520 O-ring chain |
|---|
| chassis specs | Frame: | Aluminium semi-double-cradle | Front Suspension: | 48mm Kayaba inverted cartridge fork w/adj. compression and rebound damping; 11.8 in. travel | Rear Suspension: | Kayaba single shock w/adj. preload, compression & rebound damping and separate hi/lo-speed compression adjuster; 12.4 in. travel | Front Brake: | 250mm floating disc | Rear Brake: | 245mm disc |
|---|
| dimension specs | Overall Length: | 85.9 in OR 2182 mm | Overall Width: | 32.6 in OR 828 mm | Seat Height: | 39.2 in OR 996 mm | Wheelbase: | 58.3 in OR 1481 mm | Ground Clearance: | - | Weight: | 211 lbs OR 96 kg | Fuel Capacity: | 2.1 gallons OR 7.9 L |
|---|
| tyres specs | Front: | 80/100-21 | Rear: | 110/90-19 |
|---|