This is 2014 New Yamaha YZ250F, The Replacement

Yamaha unveiled the all-new 2014 Yamaha YZ250F this afternoon in his dealer meeting in Las Vegas. The long-awaited model for replacement carburetor, which saw a period of four years now shares the same engine as the draft back YZ450F. While the engine change is good news, the whole bike for supremacy in the category 4-stroke 250cc has been redesigned.

Image of New 2014 Yamaha YZ250F

The motion for a presentation of Yamaha tilted back motor should not really be surprising since the configuration YZ450F led since 2010. Frankly, we're surprised it took so long for the company to change the pitch. The bore and stroke are identical to the 2013 model year, but Yamaha claims that this new iteration more power in the range of medium to high towers.

Most of the increase in power, updated thanks to electronic fuel injection. A 12-hole injector is fed to a throttle body 44 mm, with the entire system monitored position, intake pressure, intake air temperature, in revolutions per minute of the crankshaft and reduce the coolant temperature, the synchronization parameters and to correct the fuel. Yamaha says the EFI system will increase peak HP and gives it a coherent response to the accelerator pedal. For you and me, that means no more bog carb on G-outs and hard landings. In addition, GYTR Power Tuner Yamaha genuine accessories is compatible with the ECU YZ for custom mapping.

Like the 450, the new 2014 Yamaha YZ250F is now a port down draft intake with airbox and is located where the fuel tank would normally be located filter. Air capacity airbox has a shot almost directly into the double overhead camshaft head. Airbox access is quick and easy removal of three screws 8mm.

Of spent exhaust gases leave the rear part of the head in the new exhaust system, which does not surround the motor coil behind it. This allows the noise to 190mm (7.2 inches) can be positioned before the front and helps centralize the weight of the motorcycle for better handling.

250cc Engine of New 2014 Yamaha YZ250F

Reported seen a new gearbox and revised gear shift mechanisms have been revised to reduce the loss of the driving force with a smoother operation. The clutch has also modifies activation and better controllability.

With the airbox and the creeping advance of the exhaust into the engine instead of behind the fuel tank needs a new home, it was moved under the seat for a more centralized mass. The cap is now in a section of the front seat easily removable so that YZ a completely smooth transition from pole rider at the front of the bike. Surprisingly, the fuel tank was increased 1.6-2 gallons.

The development objective of the new Yamaha YZ250F chassis was instinctive for the handling and class leading performance suspension. To achieve this goal, the YZ250F gets a new chassis. The dimensions are very similar to the 2013 model year, but the thickness of the longitudinal beams were modified rigidity balance. The mounting surface of the swing arm is revised and the position and the shape of the longitudinal spar of the medium was changed. Supports the top of the engine are now made of steel, and the lower retainers are made of aluminum.

In the suspension department, Yamaha has not jumped on the moving train and air fork keeps KYB speed sensitive system, but with modifications. The stiffness of the outer tube and the inner tube has been changed is given a new surface coating. On the back was the shock reservoir on the left side of the bike to move space for the fuel tank and the provision of more compact silencer make. Of course the rate valve and spring for the new chassis have also been optimized.

2014 New Yamaha YZ250F in Yamaha blue or a combination of white and red team. Both models now have "graphics in the form" for better durability and less scratches on the radiator shroud. 'S White / red model also has black wheels and the availability of professional gold chain. Was planned for October, and the MSRP is now $ 200 more at $ 7.490.

Specification of 2014 New Yamaha YZ250F :

Engine: 249cc liquid-cooled DOHC 4-stroke
Bore & Stroke: 77.0 x 53.6mm
Compression: 13.5:1
Fuel Delivery: Yamaha Fuel Injection (YFI), Keihin 44mm
Ignition: TCI
Transmission: Constant-mesh 5-speed; multiplate wet clutch
Front Suspension: KYB Speed-Sensitive System, inverted fork; fully adjustable, 12.2 inches travel
Rear Suspension: KYB fully adjustable single shock, 12.4 inches travel
Front Brake: Hydraulic single disc, 250mm
Rear Brake: Hydraulic single disc, 245mm
Front Tire: 80/100-21 Bridgestone M404-A
Rear Tire: 100/90-19 Bridgestone M403
Length: 85.2 inches
Width: 32.5 inches
Height: 50.4 inches
Seat Height: 38.0 inches
Wheelbase: 58.1 inches
Ground Clearance: 12.8 inches
Fuel Capacity: 2.1 gallons
Weight: 231 (wet)
MSRP: $7,490