SAVE $2600 CHAMPIONSHIP PROVEN! The 2 straight MX & SX West Champ and undisputed benchmark in 250 motocross bikes. FEATURES & BENEFITS ENGINE Innovative Engine Design The liquid cooled, DOHC 4 valve, fuel injected engine features a forward positioned straight downdraft intake with symmetrical intake And exhaust ports. A compact, high compression combustion chamber delivers outstanding engine character with a focus on top End power delivery. Piston, Rod and Crankshaft Balance A flat top forged piston features a bridge box design for additional strength with minimal weight. The piston, rings and DLC coated Piston pin, along with the offset cylinder configuration, all reduce friction loss and contribute to quick response. The engines intake Ports, cam profiles, high strength connecting rod and optimized crank and counterbalancer all work together to produce potent high Rpm power with user friendly delivery and exceptional reliability. Advanced ECU and Fuel Injection The adjustable fuel injectionsystem uses a 44mm throttle body fed by a high pressure battery less electric fuel pump. This ensures optimum Fuel atomization and air/fuel calibration for excellent ride ability in a wide range of riding conditions. The system controls the volume of fuel injected and the ignition timing based on engine rpm and throttle opening, providing hesitation free response and controllability. Wraparound Rear Positioned Exhaust Layout An innovative exhaust pipe design improves mass centralization and power development characteristics. This layout moves the rear end of The exhaust pipe farther forward and enables a muffler position close tothe center of the mass. Durable Transmission The transmission gears, dogs and shift mechanisms are designed to smooth gear changes and improve durability under the heavy demands Of motocross racing. GYTR Power Tuner Ready Accessory GYTR Power Tuner lets owners adjust air/fuel mixture and ignition timing maps to match engine performance characteristics to the rider And trackconditions in a matter of seconds with the push of a few buttons, as well as monitor engine diagnostic cod ADDITIONAL FEATURES Embedded Graphics Yamaha's unique embedded graphics are built into the bodywork for extended durability, resisting both peeling and damage. Adjustable Handlebar Mounts The 4 position adjustable handlebar mounts are rubber mounted to improve comfort and reduce handlebar vibration. Race Winning Details The YZ450F includes top spec details, including 1-1/8aluminum tapered handlebars, wide 55mm footpegs, a quick adjust clutch perch, Stylish black rims and gold chain. Simplified Servicing Sleek air cleaner cover helps prevent contact with the quick release quarter turn Dzus air box fasteners and provides toolless access to The air filter, positioned at the front of the bike to avoid roost from the rear wheel. CHASSIS/SUSPENSION Bilateral Beam Aluminum Frame A Yamaha's renowned bilateral beam aluminum frame features compact overall dimensions that balance minimal weight with thestrength and rigidity needed for race Winning performance. The frame's swingarm pivot section and engine mounting brackets are tuned for stability, responsiveness and sharp cornering. Mass Centralization The engine, aluminum muffler and fuel tank are positioned close to the machine's center of gravity. This layout contributes to centralized mass for a lightweight handling feeling on the track. The wide 55mm footpegs help lower the rider's center of gravity for improved machine balance, control and rider comfort. 270mm Front Brake A large 270mm front brake disc is the same system fitted to the YZ450F, and uses an aggressive pad material for exceptional stopping power and braking control. Out back, a durable heat resistant rear rotor boosts brake durability. Refined Suspension Settings Industryleading, fully adjustable KYBspringtype fork with speed sensitive damping features advanced valving for improved suspension Feel and balance. The linkage type rear suspension features a KYBrear shock alsofeatures settings optimized for ideal damping characteristics. STK# 50862 >> Bike Torque has been providing motorcycle sales and servicing in the South Waikato & King Country regions since 1986
