2007 Yamaha YZ250 (discontinued)

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Discontinued
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    this is a the bike ever been created it has good power and it kicks

    Specifications

    Model Year 2007
    Engine Type Liquid-cooled 2-stroke reed valve
    Engine Displacement 249cc
    Bore x Stroke 66.4 x 72mm
    Compression Ratio 9.2 – 10.9:1
    Fuel System PWK38S X 1
    Ignition CDI
    Transmission Constant mesh 5-speed/Wet, multiple-disc coil spring
    Final Drive Chain Drive
    Suspension Front Telescopic Fork, coil spring/oil damper, 11.8" Travel
    Suspension Rear Swingarm (link, suspension), coil spring/gas-oil damper, 12.4" Travel
    Brakes Front Hydraulic single disc brake, 224mm
    Brakes Rear Hydraulic single disc brake, 219.8mm
    Tires Front 80/100-21-51M
    Tires Rear 110/90-19-62M
    Overall Length 85.7"
    Overall Width 32.6"
    Overall Height 51.4"
    Seat Height 39.1"
    Wheelbase 58.3"
    Ground Clearance 15.0"
    Rake/Trail
    Fuel Capacity 2.1 gal.
    Curb Weight 211.6 lb.
    Miscellaneous Key Features:
    • Our legendary two-stroke Supercross winner is more potent than ever.
    • Winner of "Cycle World", "Racer X" and "Motocross Action" shootouts.
    • 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 new ProTaper aluminum handlebar, titanium footpegs, gripper seat and Excel rims.

    New for 2007:

    • Modifying thickness of both inner and outer fork tubes and revising damping settings provides fantastic bump absorption and comfort while shaving weight.
    • Lightening the rear shock with aluminum /components takes off more weight, and revised settings complement the ones in the fork.
    • A light and strong ProTaper aluminum handlebar in adjustable mounts adds comfort and control.
    • A new jet needle in the 38mm Keihin PWK carburetor boosts bottom-end and mid-range response.
    • Use of lighter, box-head bolts throughout the chassis eases maintenance while reducing weight and increasing performance.

    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 pedals 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) ensure 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.
    • Cleated rear brake lever and folding shift lever tip offer superb grip and exceptional durability.
    • Repackable exhaust silencer.
    • Durable, comfortable handlebar grips.
    • Stainless steel clutch cable for longer life.

    2007 YZ450F

    Key Features:

    • For 2007, the bike that started the four-stroke revolution benefits from significant chassis and engine refinements that ensure the five-titanium-valved YZ450F remains at the head of the open-class pack.
    • Modifications to the light and strong aluminum frame and suspension mean light, precise, confident handling at any speed.
    • Five-speed gearbox provides maximum flexibility and the right gear for a wide range of riding environments.
    • Ready to race straight out of the crate - with a ProTaper aluminum handlebar in adjustable clamps, titanium shock spring, ti footpegs, gripper seat, etc.

    New for 2007:

    • Replacing the upper cast triple clamp with a light and strong forging, slightly reducing steering head rigidity, and the use of lighter outer fork tubes; lighter wheel rims and light wave-type brake rotors add up to super-accurate, super-responsive steering.
    • Increasing the length of the rear shock by 1.5mm further sharpens handling. Replacing steel damping adjusters with aluminum ones removes even more weight from the four-way adjustable, titanium-sprung rear suspension unit.
    • A more rigid clutch pressure plate helps put power to the ground and dissipates heat more efficiently, especially during partial-clutch operation. Shorter lever stroke with 12-percent reduced effort means instant response.
    • New, titanium exhaust pipe fattens low- and mid-range power while simultaneously adhering to 2007 AMA noise regulations.
    • This year's ProTaper aluminum handlebar bend raises the grips 8mm for an expanded cockpit. Forged bar clamps reduce weight for superior handling.

    Engine:

    • 449cc five-valve DOHC liquid-cooled engine is super-powerful yet tractable.
    • 39mm Keihin FCR flat-slide carburetor with throttle position sensor (TPS) and leak jet delivers precise fuel/air mixture and instant throttle response.
    • Revised CDI ignition keeps that amazingly broad and deep powerband hard-hitting, yet controllable.
    • Lightweight, titanium valves and load-reduced springs minimize reciprocating mass for fast-revving, hard-hitting power delivery across the rev range.
    • Additional weight-saving engine features include: small-design cam chain tensioner and oil pump, aluminum oil hose, all-titanium exhaust header, flange, bracket and heat shield and light CDI ignition unit.
    • Primary kickstarting with automatic decompression and convenient handlebar-mounted hot start lever ensures easy restarts.
    • Kick pinion gear is separate from the primary driven gear for smoother clutch engagement.
    • Large-capacity radiator is reinforced for greater strength.

    Chassis/Suspension:

    • Aluminum frame uses a mix of alloy casting, forgings and extrusions to produce a tuned-flex frame that makes the YZ the finest handling motocross bike ever.
    • Speed-Sensitive System 48mm Kayaba fork places transfer control valves (TCV) above the fork springs, so that damping force is controlled by piston speed; Eliminating mid-stroke damping force changes provides a smoother, more precise ride.
    • Titanium-sprung four-way adjustable rear shock with Kashina-coated internals reduces friction for fantastic compliance and great handling.
    • More weight savings come via two-piece (part aluminum, part plastic) engine protector plates and thin-walled engine guard construction.
    • Removable aluminum rear subframe constructed of square-section tubing for light weight and easy maintenance - lighter fasteners for 2007 enhance weight distribution and handling.
    • Lightweight front wheel hub for reduced unsprung weight and increased durability.
    • Premium Dunlop knobbies provide unbeatable, competition-spec traction and great wear.
    • Lightweight 21-inch front and 19-inch rear Excel rims are exceptionally durable and reduce unsprung weight.

    Additional Features:

    • “Gripper” style seat cover gives excellent feel and control, and the seat is lighter for 2007.
    • Wide, cleated, folding titanium footpegs are light, strong, and provide excellent comfort, grip and ground clearance.
    • Works-style clutch lever features oversize barrel adjuster for easy, on-the-fly adjustability of lever/cable play.
    • Cleated rear brake lever and folding shift lever tip offer superb grip and excellent durability.
    • Repackable exhaust silencer.
    • Durable, comfortable handlebar grips.
    • Stainless steel clutch cable for longer life.
    Price $6299.00
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