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California Senate passes Motorcycle Noise Law
September 3, 2010


Yamaha Announces 2011 YFZ450R and YFZ450X Sport ATVs
September 1, 2010


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Capitol Yamaha


  
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 Standard Features:
New Engine
  Larger displacement 998.6cc 4-stroke, 4-cylinder, liquid-cooled engine for increased power, torque and acceleration - includes several features to reduce friction and reciprocating mass  
  Improved electronic fuel injection system features the Suzuki Dual Throttle Valve System (SDTV) - maintains optimum air velocity in the intake tract for smooth low-to-mid rpm throttle response and high torque output - includes Auto Fast Idle System (AFIS)  
  Compact double-barrel throttle body design with larger 52mm bores for improved power, plus narrower pitch between outer and inner bores - allows use of narrower airbox, fuel tank and bodywork to provide more room for rider's knees/elbows  
  Twin injectors per throttle body for improved throttle response and acceleration - primary injector operates under all conditions while secondary injector operates under high rpm/heavy load conditions to further increase engine output  
  New cylinder head features larger 30mm intake and 24mm exhaust ports, plus smaller combustion chamber and higher 12.5 :1 compression ratio for high power output  
  New Titanium intake and exhaust valves with larger 4.5mm stems for increased strength - valves are lighter overall permitting a 1000 rpm higher engine redline  
  Lighter weight forged pistons featuring chrome-nitride coated upper compression and oil control rings to reduce friction and improve sealing  
  New reinforced crankshaft and chrome-moly connecting rods, plus recalibrated balancer shaft for dependable high rpm operation  
  Back-torque limiting clutch allows smoother downshifts, plus new rack and pinion operating system provides more positive clutch feel  
  Closer transmission gear ratios for improved acceleration, plus redesigned shift forks for smoother shifting  
  Larger trapezoidal-shaped radiator improves cooling capacity 17% without increasing frontal area, plus new compact cooling fan design further improves efficiency - system includes high-capacity radiator-type oil cooler  
  New Suzuki Advanced Exhaust System (SAES) - all titanium system designed and positioned to keep mass low and close to the centerline of the machine, plus decrease drag and increase cornering bank angle  
  Suzuki Exhaust Tuning System (SET) regulates exhaust pressure waves to suit running conditions and maintain optimum engine torque  
  ECM-controlled PAIR (Pulsed-AIR) system - operation based on throttle position and engine rpm to reduce HC, CO and NOx emissions  
  New-design generator is more compact and supplies power to a lighter and shorter maintenance-free battery - ECM is also narrower and shorter for weight reduction  
New Chassis
  More compact overall chassis dimensions including shorter reach from seat to handlebars, lower footpegs, shorter/narrower fuel tank, 20mm lower seat height - all designed for improved rider comfort and mobility  
  New wind-tunnel-developed bodywork with reshaped vertical headlights, repositioned ram-air ducts, plus turn signals integrated with mirrors and tail-section - reduces frontal area by 4% and drag by 5%  
  Bright 55/65W headlight and reshaped taillight with new clear external lens  
  Redesigned instrument cluster features an analog tach with rpm indicator, digital speedometer and new gear indicator - also includes LCD odometer-tripmeters, coolant temp., clock and EFI diagnostics  
  All-new lightweight aluminum frame with combination cast and extruded spar construction for precisely calculated rigidity - frame design concentrates engine mass more toward the center of the machine for improved handling  
  Braced aluminum swingarm is lighter weight with improved rigidity - right side arm is shaped to tuck in the exhaust for improved cornering clearance  
  Fully adjustable 43mm inverted fork features Diamond Like Carbon (DLC) coated stanchion tubes to reduce friction and improve response - includes cross-mounted steering damper  
  Fully adjustable piggy-back shock absorber with more linear rate linkage system for improved suspension response and feedback  
  Radial-mount four-piston front brake calipers with larger 310mm rotors and new radial-mount master cylinder for improved lever feel and feedback  
  Bridgestone radial tires mounted on new cast aluminum wheels featuring redesigned, thinner spokes with optimized wall thickness to reduce unsprung weight  





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