Photo You can click the following link to check out a gallery of photos of the 2008 Yamaha YZ250.

Key Features:

  • Our legendary two-stroke Supercross winner is more potent than ever.
  • 610 grams off the front end makes this the quickest turning, best-handling YZ250 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.

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:

  • A carefully engineered, advanced aluminum frame and swingarm give the YZ250 the best handling in the 250 class.
  • Speed-Sensitive System 48mm Kayaba fork tubes move the transfer control valves (TCV) above the fork springs, so that damping force is controlled by piston speed instead of position. Along with a bigger base valve hole, the result is a smooth ride and super-precise handling.
  • Removable aluminum rear subframe constructed of square-section tubing for reduced weight.
  • Rear, fully adjustable Kayaba 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 front and rear calipers with aluminum pistons and anti-bubble front master cylinder, 250mm fully floating front and 245mm rear discs, deliver strong stopping power with progressive feel.
  • 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.
  • A light and strong ProTaper aluminum handlebar in adjustable mounts means comfort and control.
  • Use of light, box-head bolts throughout the chassis eases maintenance while reducing weight and increasing performance.
  • Repackable exhaust silencer.
  • Durable, comfortable handlebar grips.

MSRP*

$6,399 (Team Yamaha Blue/White)
Available from August 2007

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

Carburetion

PWK38S X 1

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

Dry Weight

212 lb

Fuel Capacity

2.1 gal

Other

 

Warranty

30 Day (Limited Factory Warranty)

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