Needs a life
Full throttle!
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posted August 05, 2006 05:46 AM
2007 Yamaha WR450F 2007 Yamaha WR450F
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A YZ-bred advanced aluminum frame, carefully engineered from castings, forgings and extrusionsenhances handling while retaining Yamaha feel and characteristics.
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Now there's even more controllable power flowing from the five-titanium valve, 11,000 rpm engine, and it starts with the push.
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Digital enduro computer offers speedometer, clock, tripmeter, etc., in basic modeor use management functions such as timer, distance compensating tripmeter, average speed.
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The WR450F is green sticker approved for California.
ALL NEW FOR 2007:
ENGINE:
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449cc liquid-cooled, DOHC four-stroke with five titanium valves delivers more broad power than ever. New engine has high over-rev capacity and crisp, linear throttle response.
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Changing the cylinder mounting angle to a more vertical position in the new frame provides excellent overall machine balance by placing more weight to the center..
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Revised camshafts, carburetion, intake ports, exhaust, etc., all work together to produce an engine with even more low and mid-range power.
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New crank with revised balance factor and new AC generator provides smoother running. Strong new connecting rod and piston oil-jet for increased cooling and long life.
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New, dry sump lubrication system carries the oil reservoir inside the engine cases, for excellent mass centralization and simplified plumbing.
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39mm Keihin FCR flat-slide carburetor with throttle position sensor (TPS) produces ultra-precise fuel/air mixing and quick throttle response.
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New "no tools" airbox adopts hinge-type quick-open lid. Battery rides 8mm lower than before for improved handling.
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Digital CDI ignition system delivers more precise spark and monitors engine speed to ensure optimal timing for fast, strong response.
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New, bigger radiators with reinforcements ensure maximum cooling efficiency with greater strength.
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Wide-ratio five-speed transmission uses strengthened gears and YZ450F-spec multi plate clutch - good for quick-hitting power in the woods as well as eye-opening top-end power.
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New kickstarter features a strengthened ratchet mechanism. The electric starting remains.
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Lightweight exhaust system maximizes engine power and allows hassle-free replacement of oil filter.
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Aluminum muffler with USFS-approved spark arrestor.
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Works-style clutch lever features oversize barrel adjuster for easy, on-the-fly adjustability.
CHASSIS/SUSPENSION:
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All-new YZ-inspired aluminum frame helps reduce weight while optimizing mass centralization. An extensively tested assembly of aluminum forgings, castings and extrusions. The new WR frame retains Yamaha handling and responsiveness.
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Removable aluminum rear subframe constructed of square-section tube for reduced weight.
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Tapered swingarm adopts YZ-style linkage for controlled, compliant rear suspension action. Revised axle and holders reduce weight in a critical area.
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The Kayaba shock provides 12.0 inches of travel with adjusters for high- and low-speed compression damping, rebound and spring preloadand features a larger piggyback reservoir for excellent damping and fade resistance.
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New, wave 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.
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Lightweight 21-inch front and 18-inch rear Excel rims provide exceptional durability and help reduce unsprung weight for optimal suspension performance.
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Premium Dunlop knobbies.
ADDITIONAL FEATURES:
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Sharp new YZ-derived bodywork, new engine covers and a new thicker seat look great and is more comfortable on long rides.
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ProTaper aluminum handlebar in forged triple clamp shaves weight and increases comfort.
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Slim design lightweight fuel tank holds 2.1 gallons.
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One-piece, high strength, plastic skid plate shaves weight and offers full protection.
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Lightweight, 35-watt headlight and small LED taillight maximize visibility and draw less current.
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Adjustable front brake lever.
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5mm wider, super wide, footpegs are also lower for more comfort.
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Cleated rear brake lever and folding shift lever tip offer superb grip and excellent durability.
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Repackable aluminum muffler shaves weight.
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Front wheel collar makes front wheel removal quick and easy.