Yamaha: 2011 Yamaha WR250F Enduro Motorcycle

Yamaha: Championship-quality engineering.

With a string of World Championships to its credit, the WR250F is one of today’s most respected enduro bikes.

250cc liquid-cooled DOHC 4-stroke; 5 titanium valvesWhether you’re an amateur or pro, serious racer or club rider, this machine will let you discover your true off-road potential.

The winning combination of a free-revving, 4-stroke, DOHC, 5-valve engine and a compact and lightweight aluminium chassis ensures that the WR250F can compete and win on virtually any type of terrain.

Specially developed enduro transmission and suspension give you ultimate control and handling – in the forest its famous agility is second to none, while on the quick sections this gutsy 250 runs hard and fast.

When you’re 100 per cent serious about winning in the dirt, the choice is clear: your future is with Yamaha. That’s because they have been building some of the world’s most successful off-road racing bikes for nearly 40 years.

Yamaha’s WR enduro models offer the most competitive engine and chassis packages, plus class-leading technologies and legendary build quality.

Their off-road success story didn’t just happen by chance. Yamaha’s long list of World and National Championships in motocross and enduro is the result of many years of commitment and devotion by yamaha engineers and factory riders. Indeed, the will to win is an integral part of Yamaha’s DNA.

High-performance engine

The liquid-cooled, 4-stroke, forward-inclined single cylinder, 5-valve, DOHC engine comes with extra-strong torque and class-leading high-rpm power. This is the engine that has delivered a string of World Championships and helps to make the WR250F one of the most respected enduro bikes in the world.

Advanced chassis design

Our years of racing expertise have taught us that enduro bikes need agile frames that can handle a tough workout. The advanced lightweight aluminium chassis design on the WR250F has been specially developed to give an ideal balance of rigidity, agility, and race-winning handling.

Enduro transmission

Tough conditions require a machine that responds. The specially developed enduro transmission on the WR250F can handle everything from tight, slow-speed sections through to fast, full-on fire roads. It could be the winning advantage you need.

Enduro-specific suspension

Extreme terrain demands optimum handling. We have developed enduro specific suspension that is tuned for the best possible handling, regardless of your speed or the type of track. It’s good to know that your bike will react to the terrain as quickly as you will.

Optimum race design

Our enduro bikes come with a long history of racing success, and we transfer that competitive knowledge to every machine we create. The WR250F comes with a quickly-detachable airbox, O-ring chain, lightweight skid plate and multi-function digital instruments to ensure that it is ready to race from day one.

Flying startOptimized combustion chamber design provides the most efficient intake and exhaust flow for maximum engine performance

In keeping with our racing traditions, we understand the importance of a clean getaway. So the WR250F comes with an electric starter that saves time during those precious seconds after the gun. And of course, the kick remains for those that like to do it the old-fashioned way.

Key Features:

  • YZ-bred advanced aluminum frame is carefully engineered from castings, forgings and extrusions—enhances handling while retaining legendary Yamaha feel and characteristics.
  • Highly evolved high-revving five-titanium-valved engine starts with the push of a button.
  • Cool digital enduro computer offers speedometer, clock, tripmeter, etc., in basic mode—or pace management functions such as timer, distance-compensating tripmeter, average speed, etc., when switched to race mode.
  • The WR250F is green sticker approved for California.

Engine:

  • 250cc liquid-cooled, DOHC four-stroke with five titanium valves delivers excellent low- and midrange power, with high over-rev capacity and crisp, linear throttle response.
  • Special WR camshafts, carburetion, and exhaust and ignition systems work together to produce a quick-revving engine with great low- and midrange power.
  • 37mm Keihin® FCR flat-slide carburetor with throttle position sensor (TPS) ensures ultra-precise fuel/air mixing and lightning-quick throttle response.
  • Close-ratio five-speed gearbox tackles almost any terrain.
  • No-tools airbox uses hinge-type quick-open lid. Battery rides low for excellent handling.
  • Digital CDI ignition system delivers more precise spark and monitors engine speed to ensure optimal timing for fast, strong response during hard acceleration.
  • Large-capacity radiators with reinforcements ensure maximum cooling efficiency with great strength.
  • Lightweight exhaust system maximizes engine power and allows hassle-free replacement of oil filter.
  • Aluminum muffler with USFS-approved spark arrestor looks trick and keeps things light.
  • Works-style clutch lever features oversize barrel adjuster for easy, on-the-fly adjustability of lever/cable play.
  • Electric start ensures easy restarts.

Chassis/Suspension:

  • YZ-inspired aluminum frame reduces weight while optimizing mass centralization. An extensively tested assembly of aluminum forgings, castings and extrusions, the WR frame retains legendary Yamaha handling and response.
  • Removable aluminum rear subframe constructed of square-section tube for reduced weight.
  • Fully adjustable air/oil-separate 48mm fork tubes deliver precise, fade-free handling; fork protectors provide excellent tube protection.
  • Tapered swingarm uses YZ-style linkage for controlled, compliant rear suspension action. Axle and holders reduce weight in a critical area.
  • The KYB® shock provides 12.2 inches of travel with adjusters for high- and low-speed compression damping, rebound and spring preload—and features a larger piggyback reservoir for excellent damping and fade resistance.
  • Wave-style disc brake rotors front and rear reduce unsprung weight and provide excellent performance. Front and rear calipers with aluminum pistons deliver strong stopping power with progressive feel.Constant-mesh 5-speed; multiplate wet clutch
  • Lightweight 21-inch front and 18-inch rear rims provide exceptional durability and help reduce unsprung weight for optimal suspension performance.
  • Premium Dunlop® knobbies offer unbeatable, competition-spec traction and excellent wear.

Additional Features:

  • Cool YZ-derived bodywork and a thick seat look great and feel excellent on long rides.
  • ProTaper® aluminum handlebar in forged triple clamp shaves weight and increases comfort.
  • Wide footpegs for great comfort.
  • Slim-design, lightweight fuel tank holds 2.1 gallons.
  • One-piece, high-strength, plastic skidplate shaves weight and offers great protection.
  • Lightweight, 35-watt headlight and sweet LED taillight maximize visibility and draw less current.
  • Adjustable front brake lever.
  • Repackable aluminum muffler shaves weight.
  • Front wheel collar makes front wheel removal quick and easy.
If you enjoy reading our Articles, please consider leaving a comment or subscribing to the RSS feed to have future articles and News information on Motorcycles delivered to your feed reader. Thank you and have a great day!

Comments are closed.