2005 Yamaha WR250F Competition Model

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4Strokes
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2005 Yamaha WR250F Competition Model

Postby 4Strokes » Thu Nov 16, 2017 10:01 am

05wr250f.jpg
2005 Yamaha WR250F Competition Model

What happens when you take one of the most maneuverable, fun-to-ride off-road racers and make it lighter, narrower and lower its center of gravity? Well, you get the 2005 WR250F. Look out, because the best just got better.

Yamaha is the leader in the small-bore four-stroke off-road racing market – a segment they basically created with the WR250F when it was first released in 2001 With this year’s little thumper, Yamaha concentrated on handling, light weight and comfort, starting with the all-new slimmer fuel tank, radiator shrouds and seat, which together increase the rider’s ability to move around adequately on the bike, resulting in more control at higher speeds in the most demanding of off-road environs. The seat isn’t just narrower, either, it’s also 10mm lower, which helps to lower the racebike’s center of gravity and improve the handling even further.

In addition, the newest WR250F comes with all-new 48mm forks, increasing the overall comfort for the rider who is in the saddle for hours at a time (as is typical at off-road events), while also improving handling significantly. The forks are beefy, but they’re also valved in such a way that they will soak up off-road obstacles – such as rocks, bumps and logs – with ease.

Most people would be happy enough with just the handling upgrades, but Yamaha didn’t stop there. The top end of the 2005 WR250F engine has been redesigned as well, including a newly designed cylinder head, piston, combustion chamber and intake port, not to mention the new carburetor and ignition settings, all of which combine to create more power throughout the rev range. Horsepower is king, after all.

Separating the WR250F from its track-ready YZ brothers are the additional accessories for the rider who chooses the open trails over the tight tracks. The WR250F features a 60-watt halogen headlight, a taillight, voltage regulator, tripmeter, an 18-inch rear wheel, 2.6-gallon fuel tank, wide-ratio transmission and a U.S. Forest Service-approved spark arrestor. A brand-new, lighter aluminum exhaust silencer, lighter rear sprocket, lighter rear swingarm, all-new Renthal aluminum handlebars, a lightweight chain, lightweight hub, and aluminum spoke nipples help to complete the lighter overall package for the 2005 model year. All of these weight savings, and it still features the super-convenient electric start.

The WR250F is perfect for just about any off-road condition you can throw at it, from the deserts to the woods – it can handle it all. Throw in the brand-new shorter front-brake routing, which provide for a greater brake feel, and what you have is a motorcycle that is faster, handles better, and stops quicker than the previous models, which were already the top of the heap. After all, it’s fun to lead. In addition, the WR250F features the “works-style” adjustable clutch perch (fully adjustable at the line with no tools!) and lever makes for a better response and a superior feel.

From the rider’s perspective, these changes provide their off-road weapon of choice, the WR250F, more dominant than ever. More power, lighter weight, better handling and better comfort: nothing was overlooked on the 2005 Yamaha WR250F. Suggested Retail: $5,899 USD.

Specifications
Model: WR250F
Engine Type: 249cc, liquid-cooled, 5-valve, DOHC, four-stroke w/titanium valves, Digital CDI
Bore x Stroke: 77.0 x 53.6mm, Compression Ratio: 12.5:1
Carburetion: 37mm Keihin FCR flat-slide w/throttle position sensor
Transmission: Wide-ratio, 5-speed w/multi-plate wet clutch, Final Drive: #520 O-ring chain
Suspension/Front: 48mm Kayaba inverted telescopic fork w/adj. comp. & rebound; 11.8" travel
Suspension/Rear: Kayaba shock w/adj. preload, comp. & rebound, separate hi/lo comp. adj.; 12" travel
Brakes, Front: 250mm floating disc | Rear: 245mm disc
Tires, Front: 80/100-21 Dunlop | Rear: 100/100-18 Dunlop
Dims: L 86.22", W 32.68", H 50.79", Wheelbase 58.1", Seat Height 38.4", Ground Clearance 14.57"
Dry Weight: 228 lbs.
Fuel Capacity: 2.1 gallons
Color: Team Yamaha Blue/White

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4Strokes
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New for the 2005 Yamaha WR250F

Postby 4Strokes » Mon Dec 04, 2017 1:42 pm

  • New combustion chamber shape and other head modifications, along with revised carburetion and ignition settings, produce more power and instantaneous delivery.
  • A 10mm-lower and slimmer seat, narrower shrouds and fuel tank increase rider maneuverability for easier handling.
  • New, 48mm fork tubes provide even better handling and comfort. New fork protectors provide greater tube coverage.
  • Aluminum Renthal handlebar reduces weight, is more durable and looks cool too.
  • New, shorter front brake routing gives excellent lever feel and eases brake maintenance.
  • New, aluminum muffler is light and stylish.
  • New front wheel collar makes front wheel removal quick and easy.
  • Lighter rear sprocket for less un-sprung weight.
  • Left side cover now has a grab handle for added convenience.
  • Light-weight front and rear calipers with aluminum pistons and revised front master cylinder, combined with 250mm fully floating front and 245mm rear disc, deliver strong stopping power with progressive feel.


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