6699.00 $ 2015 Yamaha YZ450F Soddy Daisy

Published date: May 24, 2024
  • Location: Soddy Daisy, Tennessee, United States

2015 Yamaha YZ450F

⭕ A Winner Right Out of the Crate.

Completely re-engineered just last year with new EFI engine, an entirely new frame, minimized body work and new suspension components providing for excellent mass centralization and class leading 450 power with 250-style handling. The critics agree: the YZ450F is the one to beat.

Top Features
YZ450Fs revolutionary rearward-slanted-cylinder design is an innovative approach to achieve unmatched mass centralization. Concentrating the motorcycles heaviest components (engine mass, fuel tank, exhaust system, and airbox) toward the center of the machine, as well as the rotational mass of the valve train, helps achieve superior, nimble handling.
The 4-titanium-valve cylinder head is matched to a fuel injection system that provides superb power feeling across the rpm range. The adjustable fuel injection system uses a 44mm throttle body fed by a high pressure battery-less electric pump to ensure optimum fuel atomization and air/fuel calibration for a wide range of riding conditions. The YZ450F instantly adapts to changing air/fuel mixtures depending on altitude and temperature, for an engine that delivers no matter what conditions.
The aluminum Bilateral Beam frame features new motor mounts to improve the machines handling character and offers a superb rigidity balance and, with class-leading front and rear suspension, provides unmatched lightweight handling and cornering.
Industry-leading suspension with refinements to internal and external components and settings result in superior handling.
Accessory GYTR® Power Tuner lets owners adjust air/fuel mixture and ignition timing maps to match engine performance characteristics to the rider and track conditions in a matter of seconds with the push of a few buttons.
Engine Features
The high-performance ECU provides great bottom end torque plus delivers a strong feeling of power from 3rd gear up while the gear ratios lengthen the powerband and heighten the feeling of power in 2nd and 3rd gear.
The valve mechanisms and cylinder head feature specs that take performance to the next level, resulting in added power and outstanding performance.
The exhaust pipe has an innovative layout, circling the cylinder, giving the exhaust pipe proper length for an excellent exhaust-pulse effect. At the same time, the exhaust pipe has three different diameters throughout the exhaust tract, bringing out excellent power characteristics. This layout allows the silencer to be behind the side panel closer to the middle of the bike which centralizes the mass for superior handling.
The compact wet sump lubrication system with piston cooler spray jet eliminates the need for an oil tank, reducing engine weight. The water pump employs a plastic resin impeller for further weight reduction. The reduced size of the crankcase enabled by this lubrication system design is a major factor in making it possible to mount the 450cc engine on the compact frame to deliver precise and instinctive handling.
The accessory GYTR Power Tuner can simplify the work of adjusting fuel injection volume and ignition timing settings to fit personal preferences or track conditions.
New for 2015
Stiffer fork springs, new valving and a new fork outer tube improve performance in the mid-to-end stroke and aid fork bottoming resistance.
Quick-release quarter-turn Dzus® air box fasteners for tool-less access to the air filter.
A new steel bottom engine bracket has been designed for increased rigidity balance and damping feel.
New Dunlop® MX52 tires offer excellent traction front and rear, especially on hard surfaces.
Chassis/Suspension Features
A Bilateral Beam frame is adopted and the overall dimensions are roughly the same as the frame of the 2013 YZ250F. This gives the YZ450F a compact chassis that provides the most instinctive handling in the 450 motocross class.
The aluminum muffler is positioned closer to the machines center of gravity as it is almost completely hidden by the side number plate. The layout allows a shorter, lighter sub frame and also contributes to mass centralization for lightweight handling feel.
The front suspension has proven KYB® air-oil separated forks with stiffer fork springs, new valving and a new fork outer tube to improve performance in the mid-to-end stroke and aid fork bottoming resistance. The rear suspension also features settings optimized for ideal damping characteristics to match the chassis dimensions.
The large diameter 22mm front axle and top triple clamp provide rigidity for unmatched handling and front end feel. The handlebar mounts are rubber mounted to improve comfort and reduce handlebar vibration.
The fuel tank and air cleaner box give the machine a slimmer feeling between the legs as well as positions the fuel tank mass closer to the center of the bike which improves handling feel. Furthermore, the air box can be accessed without removing the fuel tank for easy serviceability of the large air cleaner element.
A narrow radiator design contributes to slimming down the radiator panel area.
Additional Features
Riders have a choice of two color options: Team Yamaha Blue/ White or White/Red.
Type: 449.7cc liquid-cooled DOHC 4-stroke; 4 titanium valves
Bore x Stroke: 97.0 x 60.8mm
Compression Ratio: 12.5:1
Fuel Delivery: Yamaha Fuel Injection (YFI), Keihin® 44mm
Ignition: TCI: Transistor Controlled Ignition
Transmission: Constant-mesh 5-speed; multiplate wet clutch
Final Drive: Chain
Suspension / Front: KYB® Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel
Suspension / Rear: Monoshock, adjustable preload and rebound damping, 7.5-in travel
Brakes / Front: Hydraulic single disc brake, 250mm
Brakes / Rear: Hydraulic single disc brake, 245mm
Tires / Front: 80/100-21 Dunlop® MX52-FA
Tires / Rear: 120/80-19 Dunlop® MX52
L x W x H: 85.6 x 32.5 x 50.8 in.
Seat Height: 38.4 in.
Wheelbase: 58.3 in.
Ground Clearance: 13.2 in.
Fuel Capacity: 2.0 gal.
Wet Weight: 245 lb.
Warranty: 30 Day (Limited Factory Warranty)
Fuel economy estimates are based on US EPA exhaust emission certification data obtained by Yamaha. Your actual mileage will vary depending on road conditions, how you ride and maintain your vehicle, accessories, cargo and operator/passenger weight.

Wet weight includes the vehicle with all standard equipment and all fluids, including oil, coolant (as applicable) and a full tank of fuel. It does not include the weight of options or accessories. Wet weight is useful in making real-world comparisons with other models.

Phone number ✆ +1 901-374-9657

Soddy Daisy, Tennessee

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