2003 WR250F Information

NEW FOR 2003

• The industry's most powerful and most advanced 250cc 4-stroke enduro machine returns lighter and better-handling than ever - and featuring all-new, super-easy electric starting!
• Redesigned airbox features all-new retaining bracket for improved sealing.
• Larger-capacity radiator and louvers ensures maximum cooling efficiency and minimal horsepower loss.
• Super-strong twin-spar frame redesigned with reduced weight and greater lateral rigidity for minimal flex and scalpel-sharp handling.
• All-new tapered swingarm features less weight and greater rigidity for more compliant rear suspension action.

• Recalibrated front fork settings deliver improved damping force with less bottoming for a smoother, more compliant overall stroke.

• Rear shock refinements include improved actuation, a new linking ratio and enhanced damping force.
• Removable aluminum rear subframe constructed of square-section pipe for reduced weight.
• All-new, lighter-weight front and rear master cylinders and calipers, combined with 250mm fully floating front and 245mm rear disc, delivers stronger stopping power with greater, more progressive control and feel.
• Retooled steering crown combines with all-new bodywork - flatter seat, fuel tank and radiator shrouds - creates a more aggressive riding position while allowing optimal rider movement.
• More weight savings come via all-new, two-piece (part aluminum, part plastic) engine protector plates and thinner-walled engine guard construction.
• All-new automatic decompression system eliminates manual lever, ensuring easy restarts in any gear.
• All-new hot start system features convenient, handlebar-mounted lever.

Engine

• Liquid-cooled, 249cc, 5-valve, DOHC, 4-stroke with trick, factory team-spec titanium valves produces tremendous, hard-hitting low- and mid-range torque and a broader powerband tuned specially for enduro/off-road performance needs.
• Lightweight forged piston reduces reciprocal mass and friction for faster revving and greater durability.
• Stratospherically high, 13,500-rpm redline means incomparable, competition-crushing pulling power.
• 37mm Keihin FCR flat-slide carburetor with throttle position sensor (TPS) ensures ultra-precise fuel/air mixing and lightning-quick throttle response.
• Digital CD ignition system delivers more precise spark and monitors engine speed to ensure optimal timing for faster, stronger response during hard acceleration.
• Lightweight exhaust system with specially shaped header angle maximizes engine power and allows hassle-free replacement of oil filter.
• Aluminum exhaust silencer looks trick and reduces weight.
• Electric starting and kick starting with integrated hot-start button ensures easy restarts in any gear.
• Slick-shifting, wide-ratio, 5-speed transmission with heavy-duty, multi-plate clutch geared specially for broad, off-road/enduro power delivery and features an involute spline set-up for smoother shifting, instant hook-up.
• Dry sump lubrication system uses frame as oil tank, helping to create a more compact engine and chassis for superb handling performance.
• Magnesium cylinder head cover helps shave weight.
• Trick, works-style clutch lever features race-spec barrel adjuster for on-the-fly adjustability.

Chassis/Suspension

• Lightweight 46mm inverted Kayaba cartridge fork features 11.8" of travel with compression and rebound damping adjustability.
• Low-friction outer tubes and aluminum piston rods ensure smooth, compliant fork stroke for superior handling and light steering.
• Rear suspension system features fully adjustable Kayaba shock with 12.4" of travel and separate adjusters for high- and low-speed compression damping.
• Lightweight 21" front and 18" rear rims provide exceptional durability and help reduce unsprung weight for optimal suspension performance.
• Premium Dunlop 739 knobbies offer unbeatable, competition-spec traction and excellent wear.

Additional Features

• Enduro-legal lighting front and rear increase versatility by maximizing nighttime and low-light visibility.
• Large, 2.6-gallon fuel tank ensures excellent range.
• Resettable tripmeter allows rider to keep track of both mileage and fuel reserves.
• Wide, cleated, folding cast alloy footpegs provide excellent comfort, grip and ground clearance.
• Cleated rear brake lever and folding shift lever tip offer superb grip and excellent durability.
• Lightweight aluminum kickstand adds convenience and tucks up high when not in use.
• Repackable exhaust silencer.
• Durable, comfortable handlebar grips.
• Stainless steel clutch cable for longer life

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