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Yamaha Motorsports

Yamaha’s YFZ450 Pure Sport ATV is a True Champion
Dominating GNCC Tracks and Trails with Yamaha Quality and Innovation

YFZ450 Blue
YFZ450 Blue

YFZ450 White
YFZ450 White

CYPRESS, Calif. – June 6, 2008 – Yamaha’s YFZ450 made history as the first true race-ready sport ATV, and ever since its inception has shown itself to be a real champion.  Yamaha, like GNCC record holders Bill Ballance and Traci Cecco, is back on the YFZ450 for 2009 continuing its unprecedented run.

Last year the YFZ450, which is the number two selling sport ATV (second only to its big brother, the Raptor 700R)*, made standard a feature once only found on the Special Edition models: front and rear fully adjustable piggyback shocks that adjust for high- and low-speed compression damping.  Up front is an independent aluminum upper A-arm front suspension featuring competition-spec piggyback shocks with 9.1 inches of travel and adjustable preload.  Out back the suspension system is a YZ linkage-type, controlled by a fully adjustable Showa shock with 10.6 inches of travel and separate adjusters for preload and rebound.

At the heart of the YFZ is a 449cc liquid-cooled, DOHC four-stroke engine with five titanium valves offering massive power with high over-rev capacity and crisp, linear throttle response.  That smooth power is delivered via the five-speed manual transmission in an assortment of situations – from the starting gate to the finish line, tight trails to wide-open fire roads.

One of the most popular features on the YFZ450 is electric start, which fires the engine and the race-inspired Keihin 39mm FCR carburetor that feeds it at the push of a button.  The twin piston rear caliper design ensures plenty of braking power and the critically acclaimed one-hand operation parking brake offers easy-to-use convenience.  The YFZ also features Yamaha Cam Adjust drive chain adjuster which makes chain adjustments quick and easy for racers and recreational riders alike.

The 2009 model YFZ450 sports aggressive yet streamlined styling, aluminum front and rear grab bars, LED tail light, Dunlop tires and aluminum rims and Pro Taper aluminum handlebars.  It will be available at Yamaha dealerships nationwide beginning in November 2008 in Team Yamaha Blue/White and a new White/Red color scheme (MSRP $7,299).


2009 YFZ450

  • Engine Type – 449cc, 4-Stroke Single, Liquid Cooled w/ Fan, Titanium 5-Valve DOHC
  • Bore x Stroke – 95mm x 63.4mm
  • Compression Ratio –  11.4:1
  • Carburetion – Keihin 39mm FCR w/ Throttle Position Sensor
  • Ignition – DC - CDI
  • Starting System – Electric
  • Transmission – 5-Speed Manual Clutch
  • Drive Train –2WD; Sealed O-Ring Chain, Eccentric Adjustment
  • Suspension/ Front – Suspension/ Front – Independent Double Wishbone, 9.1” w/ Piggy Back High/Low Speed Compression, Rebound and Threaded Preload Adjustment.
  • Suspension/ Rear – Cast Aluminum Swing Arm, 10.6” w/ Piggy Back High/Low Speed Compression, Rebound and Threaded Preload Adjustment.
  • Brakes/ Front – Dual Ventilated Hydraulic Disc , Twin Piston
  • Brake/ Rear – Ventilated Hydraulic Disc, Twin Piston
  • Tires/ Front – AT21x7-10 Radial
  • Tires/ Rear – AT20x10-9 Radial
  • LxWxH – 72.4”x46.1”x42.9”
  • Seat Height – 31.9”
  • Wheel Base – 50.4”
  • Ground Clearance – 4.5”
  • Fuel Capacity – 2.6 Gal
  • Dry Weight – 350 Lbs
  • Lighting – Dual 30W Krypton Multi-reflector Headlights and 3.9/0.5W LED Brake light

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