First Look @ 2009 Yamaha Lineup

YAMAHA (June 6, 2008)
Yamaha has released the 2009 lineup of the YZ race bikes. Here are the specs for all there new bikes.

2009 YZ450F

Key Features:

• The bike that started the four-stroke revolution benefits from chassis refinements that ensure the five-titanium-valved YZ450F remains at the head of the open-class pack.
• Subtle modifications to the suspension mean light, precise, confident handling at any speed.
• Head and exhaust design delivers stronger low- to midrange power without sacrificing top end power.
• Ready to race straight out of the crate—with a ProTaper® aluminum handlebar in adjustable clamps, titanium shock spring, gripper seat, Excel rims, etc.
• Five-speed gearbox provides maximum flexibility and the right gear for a wide range of riding environments.
• Dry sump lubrication system circulates more oil for the best durability in motocross.

New for 2009:

• Top triple clamp has two sets of mounting holes, providing 4 handlebar positions to suit a wide variety of riders: standard, 10mm back, or 10mm or 20mm forward.
• Newly designed swingarm is lighter and helps to achieve excellent rigidity balance for superb cornering and rear wheel traction.
• Lightweight suspension linkage is redesigned to match the new swingarm.
• New rear wheel hub is lighter and designed for the larger 25mm diameter axle (up from 22mm), helping to achieve the overall rigidity balance of rear suspension components.
• New axle blocks make chain adjustment a cinch.
• New clutch lever is shorter, stronger, and lighter, with a lever position adjuster to accommodate different riders. Quick adjuster makes maintenance easy.
• Front brake hose clamp is now aluminum, greatly reducing its weight.
• 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.

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.
• Lightweight titanium valves and load-reduced springs minimize reciprocating mass for fast-revving, hard-hitting power delivery across the rev range.
• Primary kickstarting with automatic decompression and convenient, handlebar-mounted hot start lever ensures easy restarts.
• Large-capacity radiator is reinforced for greater strength.

Chassis/Suspension:

• Extensively tested aluminum frame uses a mix of alloy castings, forgings and extrusions to produce a tuned-flex frame that makes the YZ the finest-handling motocross bike ever.
• Speed-Sensitive System 48mm KYB® fork damping force is controlled by piston speed: provides a smoother, more precise ride.
• Titanium-sprung, four-way adjustable rear shock with Kashima-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.
• Lightweight front-wheel hub for reduced unsprung weight and increased durability.
• Lightweight front- and rear-brake calipers with aluminum pistons and anti-bubble front master cylinder; wave-style rotors reduce unsprung weight and deliver strong stopping power.

Additional Features:

• Wide (55mm) footpegs provide excellent boot traction and rider comfort.
• ProTaper® aluminum handlebar for strength and performance.
• Works-style clutch lever features oversize barrel adjuster for easy, on-the-fly adjustability of lever/cable play.
• Repackable exhaust silencer.

2009 YZ250F

Key Features:

• Ongoing refinement to chassis produce an amazingly balanced, light-handling machine with performance that’s accessible to all levels of riders.
• Five-titanium-valve engine with increased compression spins out even more torque and horsepower.
• A carefully tuned aluminum frame made up of forgings, weldings, castings and tubing means sharp, super-precise handling.
• Mass centralization provides fantastic overall balance and performance.
• A ProTaper® aluminum handlebar in adjustable clamps and Excel rims are just a few tricks up the YZ250F’s sleeve.
• Dry sump lubrication system circulates more oil for the best durability in motocross

New for 2009:

• Redesigned exhaust system has a 60mm longer titanium header for better low-end grunt plus a 50mm shorter aluminum silencer for optimum low-rpm throttle response.
• Both carburetor jetting and CDI ignition mapping settings are precisely reworked to deliver increased engine performance with new exhaust.
• New clutch eliminates the judder spring and uses a floating rubber damper instead of a coil spring to provide unmatched clutch performance.
• New clutch eliminates the judder spring and uses a floating rubber damper instead of a coil spring to provide unmatched clutch performance.
• Newly designed swingarm is lighter and helps to achieve excellent rigidity balance for superb cornering and rear wheel traction.
• Lightweight suspension linkage is redesigned to match the new swingarm.
• New rear wheel hub is lighter and designed for the larger 25mm diameter axle (up from 22mm), helping to achieve the overall rigidity balance of rear suspension components.
• New axle blocks make chain adjustment a cinch.
• New clutch lever is shorter, stronger, and lighter, with a lever position adjuster to accommodate different riders. Quick adjuster makes maintenance easy.
• Front brake hose clamp is now aluminum, greatly reducing its weight.
• 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.

Engine:

• Liquid-cooled 250cc, five-titanium-valved, DOHC, four-stroke is powerful and highly tractable, with an rpm redline for competition-crushing pulling power.
• 37mm Keihin® FCR flat-slide carburetor with throttle position sensor (TPS) ensures precise fuel/air mixing and lightning-quick throttle response.
• Cylinder body and crankcase feature a large cutaway section to reduce pumping loss and increase midrange performance.
• Primary kickstarting (with automatic decompression and convenient handlebar-mounted hot start lever) ensures easy restarts.
• Slick, five-speed transmission with heavy-duty, multiplate clutch features an involute spline setup, ensuring smooth shifting and instant hookup under power.
• Magnesium cylinder head cover - now covered matte black - helps shave weight.
• Trick, works-style clutch lever features race-spec barrel adjuster for on-the-fly adjustability.

Chassis/Suspension:

• Extensively tested aluminum frame uses a mix of alloy castings, forgings and extrusions to produce a tuned-flex frame that makes the YZ250F the best-handling bike in its class.
• Speed-Sensitive System 48mm KYB® fork damping force is controlled by piston speed: provides a smoother, more precise ride.
• Four-way adjustable, rear shock with Kashima-coated internals reduces friction for fantastic compliance and great handling.
• Removable aluminum rear subframe is constructed of square-section tubing for light weight and easy maintenance.
• Lightweight front wheel hub for reduced unsprung weight and increased durability.
• Lightweight front and rear brake calipers with aluminum pistons and anti-bubble front master cylinder; wave-style rotors reduce unsprung weight and deliver strong stopping power.
• Lightweight 21-inch front and 19-inch rear Excel rims are exceptionally durable and reduce unsprung weight.

2009 YZ250

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.

2009 YZ125

Key Features:

• A light, aluminum frame housing an amazingly light and compact engine results in an awesome power-to-weight ratio.
• Ready to race out of the crate, complete with a ProTaper aluminum handlebar, titanium footpegs and gripper seat.
• A pure motocross machine, the light and nimble YZ125 is the perfect choice for riders stepping up from the 85cc class.

New for 2009:

• Dunlop® D742FA 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:

• Reed-valve spacer improves acceleration across the entire powerband.
• Amazingly compact 124cc reed-valve-inducted two-stroke helps produce an awesome power-to-weight ratio.
• Patented YPVS® power-valve system combines crisp, hard-hitting bottom-end acceleration with strong midrange and eye-opening top end.
• 38mm Mikuni TMX carburetor gives excellent throttle response and serious horsepower.
• Six-speed, close-ratio transmission optimizes gear ratios for maximum performance.
• Digital CDI ignition system delivers precise spark and monitors engine speed to ensure optimal timing for faster, stronger response during hard acceleration.
• Primary kickstarting ensures easy restarts in any gear.
• 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 froint and rear discs minimize unsprung weight and provide excellent stopping power.
• A carefully engineered, advanced aluminum frame and swingarm give the YZ125 the best handling in the class.
• Speed-Sensitive System 48mm KYB® fork damping force is controlled by piston speed: provides a smoother, more precise ride.
• 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.
• 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:

• Special-design “gripper” type seat and fuel tank, forward-canted steering crown and low ProTaper handlebar all help create greater freedom of movement and more comfortable ergonomics for riders.
• Wide, cleated, folding titanium footpegs are lightweight and provide excellent comfort, grip, and ground clearance.
• Use of light, box-head bolts throughout the chassis eases maintenance while reducing weight for increased performance.
• Wide-diameter fuel tank cap for easier refueling.
• Repackable exhaust silencer.
• Durable, comfortable handlebar grips.