YZ250F

Yamaha - Off Road Motorcycles - YZ250F

YZ250F

2018 Off Road Motorcycles

Forward thinking

With a winning track record that includes hard-fought FIM and AMA Championship wins on both sides of the Atlantic, the game-changing YZ250F has the right stuff to power you to the top of the podium.

This high-tech motocross bike comes with an high-performance reverse cylinder head that gives you the winning advantage against the opposition. And with its refined aluminium frame and sharp suspension settings, you can run harder and faster from the gate to the flag!

Whether you’re an experienced pro racer or a hard-charging amateur, the revolutionary YZ250F delivers all the power and agility that you need to maximise your potential. Think forward. Think YZ250F.

Details

•  High performance reverse cylinder head
•  High-lift camshafts and large diameter valves
•  Large diameter front exhaust pipe
•  Smooth transmission and ECU mapping
•  Aluminium frame with steel engine mounts
•  Air-Oil-Separate forks with stiffer outer tube
•  Sharp suspension settings for front forks
•  250cc liquid-cooled DOHC 4-valve engine
•  Front-facing intake and top mounted airbox
•  Mass centralized design for agile handling
•  MXGP-bred cutting edge technology

Features

Yamaha Off Road Motorcycles YZ250F Cyprus

High performance cylinder head

The YZ250F has a reverse cylinder head, and features high lift cam profiles as well as large diameter intake valves and strong valve springs. Fitted with a big bore front exhaust, this advanced power-boosting head gives you strong mid to high rpm pulling power for a real advantage from the drop of the gate.

Yamaha Off Road Motorcycles YZ250FYamaha Off Road Motorcycles YZ250F

Intake efficiency

With its high revving design, the YZ250F sucks in tens of thousands of litres of fresh air in a typical moto, and in order to reduce pumping losses, the model features a short intake funnel. Combined with a throttle joint that gives a 5% larger opening into the raised intake port, this highly efficient design gives you more power.

Yamaha Off Road Motorcycles YZ250F Cyprus

Aluminium beam frame

The YZ250F has an refined aluminium beam frame with a wider area behind the swingarm pivot point, giving higher torsional rigidty for increased handling stability. The steel engine mounting brackets enhance rideability, and the footrests give a roomier riding position with a lower centre of gravity.

Yamaha Off Road Motorcycles YZ250F Cyprus

High rigidity front forks

The YZ250F’s Air Oil separate (AOS) front forks are regarded as being amongst the best in the class, and they are equipped with high rigidity outer tubes that give great rider feedback. The compression and rebound factory settings are revised compared with the previous model update, and fork oil capacity is set to deliver enhanced rideability.

Yamaha Off Road Motorcycles YZ250F Cyprus

Smoother transmission

To handle the power, the transmission has wide teeth and modified dogs. Together with the shift cam and clutch activation, they give smooth, quick and positive shifting. The ECU features such ignition and fuelling map settings, as well as a high rev limit for superb over-rev feeling.

Yamaha Off Road Motorcycles YZ250F Cyprus

270mm front disc brake

Braking power is just as important as engine power when it comes to reducing lap times, and the YZ250F is equipped with a large diameter 270mm front disc brake and a heat treated 245mm rear disc. This highly efficient system delivers high levels of stopping power with accurate feel and precise control, enabling you to brake harder and later.

Technical specifications

Engine

Engine type
Single cylinder, liquid-cooled, 4-stroke, DOHC, 4-valves
Displacement
250cc
Bore x stroke
77.0 mm x 53.6 mm
Compression ratio
13.5 : 1
Maximum power
kW (PS) @ rpm
Limited power version
kW (PS) @ rpm
Maximum Torque
Nm @ rpm
Lubrication system
Wet sump
Clutch Type
Wet, Multiple Disc
Carburettor
Fuel Injection
Ignition system
TCI
Starter system
Kick
Transmission system
Constant Mesh, 5-speed
Final transmission
Chain
Fuel consumption
CO2 emission

Chassis

Frame
Semi double cradle
Front suspension system
Upside-down telescopic fork
Front travel
310 mm
Caster Angle
26º 50
Trail
118 mm
Rear suspension system
Swingarm, (link suspension)
Rear Travel
315 mm
Front brake
Hydraulic single disc, Ø 270 mm
Rear brake
Hydraulic single disc, Ø 245 mm
Front tyre
80/100-21 MS32
Rear tyre
100/90-19 MS32

Dimensions

Overall length
2,170 mm
Overall width
825 mm
Overall height
1,280 mm
Seat height
965 mm
Wheelbase
1,475 mm
Minimum ground clearance
330 mm
Wet weight (including full oil and fuel tank)
105 kg
Fuel tank capacity
7.5 L
Oil tank capacity
0.9 L

Colours

Yamaha - Off Road Motorcycles - YZ250F - Racing Blue

Racing Blue