Our legendary two-stroke is more potent than ever with a light aluminum frame housing a patented YPVS Power valve-equipped engine that delivers great power-to-weight ratio. YZ250 is ready to race out of the crate complete with ProTaper aluminum handlebar, titanium footpegs gripper seat and Excel rims.
| Key Features: |
- Our legendary two-stroke Supercross winner is more potent than ever.
- A light, aluminum frame housing a patented YPVS® Power valve-equipped ripper of an engine results in an awesome power-to-weight ratio.
- Ready to race out of the crate, complete with a ProTaper® aluminum handlebar, titanium footpegs, gripper seat and Excel rims.
|
| New for 2009: |
- Dunlop D742A front tire has an innovative knob pattern for excellent grip and handling.
- New seat cover has great grip and more durability, and it’s easy to clean.
- Premium drive chain has gold colored plates for outstanding looks.
- Front brake hose clamp is now aluminum, greatly reducing its weight.
|
| Engine: |
- 249cc liquid-cooled reed-valve-inducted two-stroke engine is lightweight, compact and features an incredibly wide, hard-hitting powerband.
- Patented YPVS® power-valve system combines crisp, hard-hitting, bottom-end acceleration with strong midrange and eye-opening top-end.
- Special-design carbon fiber reed-valve petals improve throttle response and engine performance across the entire rpm range.
- Smooth-shifting, five-speed, close-ratio transmission with heavy-duty, multiplate clutch.
- Primary kickstarter ensures smooth, easy starting action and reduced weight.
- Large-capacity radiator features a ten-row core with four louvers for maximum cooling efficiency.
- 38mm Keihin® PWK carburetor with power jet and throttle position sensor (TPS) ensures precise fuel/air mixing and extra-crisp throttle response throughout the powerband.
- Digital CDI ignition system delivers precise spark for faster, stronger response anywhere in the powerband.
- Trick, works-style clutch lever features race-spec barrel adjuster for on-the-fly adjustability.
|
| Chassis/Suspension: |
- YZ250F-style front-brake caliper and wave type front and rear discs minimize unsprung weight and provide excellent stopping power.
- The KYB® 48mm forks feature the Speed-Sensitive System that uses piston speed to control damping force for super-precise handling and a smooth ride.
- A carefully engineered, advanced aluminum frame and swingarm give the YZ250 the best handling in the 250 class.
- Removable aluminum rear subframe constructed of square- section tubing for reduced weight.
- Rear, fully adjustable KYB® shock features a super-light titanium shock spring and reduced-friction Kashima coating of internals. 12.4 inches of travel, separate adjusters for high- and low-speed compression damping, and a full lock oil rebound system for increased comfort all add up to fantastic rear wheel control and a sweet ride.
- Lightweight 21-inch front and 19-inch rear Excel rims provide exceptional durability and help reduce unsprung weight for optimal suspension performance and handling.
- Tapered rear wheel spacers ease sliding the rear wheel into place for quicker tire changes.
- Premium Dunlop® knobbies offer race-spec traction and wear.
|
| Additional Features: |
- Wide, cleated, folding titanium footpegs are lightweight and provide excellent comfort, grip, and ground clearance.
- Special-design “gripper” type seat and fuel tank, forward-canted steering crown and low handlebar provide excellent movement and more comfortable ergonomics for riders.
- Wide-diameter fuel tank cap ensures easier usage, while larger tank opening means faster, hassle-free refueling.
- Wide-diameter fuel tank cap ensures easier usage, while larger tank opening means faster, hassle-free refueling.
- Use of light, box-head bolts throughout the chassis eases maintenance while reducing weight and increasing performance.
- Repackable exhaust silencer.
- Durable, comfortable handlebar grips.
|
| Engine |
| Type |
249cc liquid-cooled 2-stroke; reed-valve inducted |
|
| Bore x Stroke |
66.4 x 72.0mm |
|
| Compression Ratio |
9.2 – 10.9:1 |
|
| Fuel Delivery |
Keihin® PWK38S |
|
| Ignition |
CDI |
|
| Transmission |
Constant-mesh 5-speed; multiplate wet clutch |
|
| Final Drive |
Chain Drive |
|
|
| Chassis |
| Suspension/Front |
Speed-Sensitive System inverted fork; fully adjustable, 11.8-in travel |
|
| Suspension/Rear |
Fully adjustable single shock, 12.4-in travel |
|
| Brakes/Front |
Hydraulic single disc brake, 250mm |
|
| Brakes/Rear |
Hydraulic single disc brake, 245mm |
|
| Tires/Front |
80/100-21-51M |
|
| Tires/Rear |
110/90-19-62M |
|
|
| Dimensions |
| Length |
85.7 in |
|
| Width |
32.6 in |
|
| Height |
51.4 in |
|
| Seat Height |
39.1 in |
|
| Wheelbase |
58.3 in |
|
| Ground Clearance |
15.0 in |
|
| Wet Weight |
229 lb |
|
| Fuel Capacity |
2.1 gal |
VN:F [1.8.3_1051]
Rating: 4.0/5 (6 votes cast)
VN:F [1.8.3_1051]
2009 Yamaha YZ2504.056
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