WR250F

Yamaha - Off Road Motorcycles - WR250F

WR250F

2018 Off Road Motorcycles

Rightfully wrong

At Yamaha we’re leaders not followers – so we like to do things our way. And when you take a look at the WR250F’s high-tech ‘reverse’ engine, you’ll see that what may look ‘wrong’ to some people is absolutely right for you!

For improved power and rev feeling this winning 4-stroke gets a whole range of engine performance upgrades inspired by our Enduro World Championship race bikes. And for class leading handling and cornering characteristics there’s a compact new YZ250F-based aluminium chassis with optimized suspension settings.

New graphics and blue rims give you the genuine factory look. And with Yamaha durability and quality as standard, this bike is the right way to go.

Details

•  Lightweight, compact and agile 250cc 4-stroke
•  Potent fuel injected engine
•  Redesigned reverse cylinder head
•  Updated compact aluminium chassis
•  Enduro clutch with wide ratio 6-speed transmission
•  Switch-free electric starter
•  Plug in Power Tuner for easy tuning
•  Outstanding suspension performance
•  Top mounted quickly removable air filter
•  Centrally located 7.5 litre fuel tank
•  Mass centralization for quick directional changes
•  18-inch rear wheel, Metzeler 6 Days Extreme tyres

Features

Yamaha - Off Road Motorcycles - WR250F

Revolutionary 250cc 4-stroke engine

Equipped with 4 titanium valves, the revolutionary rear slanted liquid cooled 250cc fuel-injected DOHC 4-stroke engine gets a remapped ECU giving optimized power and an improved rev limiter. For balanced power output with boosted reliability, the bottom end features a revised crank balance ratio and a nickel-chomoly steel con rod.

Yamaha - Off Road Motorcycles - WR250F

New reverse cylinder head

The new reverse cylinder head has shorter intake and exhaust ports for stronger top end power, while new cams and valve springs enhance the low to mid range torque. And for a broad band of balanced performance, the WR250F gets a new lightweight flat top piston and hardened DLC-coated low friction piston pin, as well as a new crank and con rod.

Yamaha - Off Road Motorcycles - WR250F

Compact new YZ250F-type aluminium chassis

To optimize the performance gains of the upgraded engine, the WR250F comes with a new lightweight YZ250F-based bilateral aluminum beam frame. Its compact design offers an idealized balance of strength and rigidity, giving you the confidence and ability to take full control over all types of extreme terrain, at low and high speeds.

Yamaha - Off Road Motorcycles - WR250F

Mass centralization

The mass centralized design is a concept we pioneered, and it's what gives the WR250F the edge over the competition. By locating major components like the fuel tank, cylinder and exhaust system close to the centre of the chassis, we've been able to create an enduro bike whose agile handling gives the Yamaha rider a real advantage - all day long.

Yamaha - Off Road Motorcycles - WR250F

Optimized suspension settings

The enduro-specific suspension runs with optimized settings for enhanced control. The KYB® 48mm upside down AOS front forks give speed-sensitive damping for class-leading performance on varied terrain. And at the rear end this high-tech 250cc 4-stroke runs with a link-type Monocross rear suspension system and KYB® shock for ultimate traction.

Yamaha - Off Road Motorcycles - WR250F

Smoother enduro clutch and wide-ratio 6-speed transmission

The WR250F's transmission is equipped with a clutch that has been specially developed to handle hour after hour of punishment. A newly designed push lever gives even smoother clutch action - and to optimize the stronger performance of the upgraded engine, there's a purpose-built wide ratio 6-speed transmission.

Yamaha - Off Road Motorcycles - WR250F

Yamaha Power Tuner

The Yamaha Power Tuner allows you to adjust the WR250F's performance character to suit different riding conditions. This plug-in accessory gives you a wide range of engine tuning options that enable you to select your own custom settings from the newly developed 3D mapping. With the Power Tuner you now have factory tuning technology at your fingertips!

Yamaha - Off Road Motorcycles - WR250F

Switch-free electric starter

For easy and reliable starting every time, this next generation enduro bike is equipped with a switch-free ignition system that enables you to fire the engine up with one push of the electric start button. And to reduce the WR250F's overall weight, the kickstart mechanism has been removed.

Technical specifications

Engine

Engine type
4-stroke, liquid-cooled, DOHC, 4-valves
Displacement
250cc
Bore x stroke
77.0 mm x 53.6 mm
Compression ratio
13.5 : 1
Maximum power
Maximum Torque
Lubrication system
Wet sump
Clutch Type
Wet, Multiple Disc
Carburettor
Fuel Injection
Ignition system
CDI
Starter system
Electric
Transmission system
Constant Mesh, 6-speed
Final transmission
Chain

Chassis

Frame
Semi double cradle
Front suspension system
Upside-down telescopic fork
Front travel
310 mm
Caster Angle
26º 10
Trail
114 mm
Rear suspension system
Swingarm, (link suspension)
Rear Travel
318 mm
Front brake
Single Disc, Ø 250 mm
Rear brake
Single Disc, Ø 245 mm
Front tyre
90/90-21 54M
Rear tyre
130/90-18 69M

Dimensions

Overall length
2,165 mm
Overall width
825 mm
Overall height
1,280 mm
Seat height
965 mm
Wheelbase
1,446 mm
Minimum ground clearance
325 mm
Wet weight (including full oil and fuel tank)
118 kg
Fuel tank capacity
7.5 litres
Oil tank capacity
1.1 litres

Colours

Yamaha - Off Road Motorcycles - WR250F - Racing Blue

Racing Blue