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Yamaha Motorsports

Yamaha Introduces All-New Grizzly 550 FI with Electric Power Steering
Mid-Sized Grizzly Poised to Dominate 500-600cc Class

Grizzly 550 FI Auto 4x4
Grizzly 550 FI Auto 4x4 Black

Grizzly 550 FI Auto 4x4 Blue
Grizzly 550 FI Auto 4x4 Blue

Grizzly 550 FI Auto 4x4 Camo
Grizzly 550 FI Auto 4x4 Camo

Grizzly 550 FI Auto 4x4 Green
Grizzly 550 FI Auto 4x4 Green

Grizzly 550 FI Auto 4x4 EPS Black
Grizzly 550 FI Auto 4x4 EPS Black

Grizzly 550 FI Auto 4x4 EPS Blue
Grizzly 550 FI Auto 4x4 EPS Blue

Grizzly 550 FI Auto 4x4 EPS Camo
Grizzly 550 FI Auto 4x4 EPS Camo

Grizzly 550 FI Auto 4x4 EPS Green
Grizzly 550 FI Auto 4x4 EPS Green

Grizzly 550 FI Auto 4x4 EPS SE Red
Grizzly 550 FI Auto 4x4 SE Red

CYPRESS, Calif. – June 6, 2008 – Yamaha Motor Corp., U.S.A., revolutionized the off-road industry with the world’s first Electric Power Steering (EPS) in an ATV and is now making that technology available again in the all-new Grizzly 550 FI. Yamaha expects the Grizzly 550 FI to dominate the popular 500-600cc class just as the Grizzly 700 FI has done in the big bore category.

The new mid-sized utility ATV takes all of the consumer-favorite features -- the groundbreaking technology of EPS, the comfort, terrainability and toughness -- found in the company’s flagship Grizzly 700 FI and incorporates them into a machine with a slightly smaller engine. The 550 not only meets customer requests for a 500- to 600-sized model, it exceeds expectations by featuring all the bells and whistles that adorn the Grizzly 700 FI.

"Power steering has been a huge success and has helped make the Grizzly 700 FI the best selling big bore utility ATV on the market today*,” said Steve Nessl, Yamaha’s ATV/SxS marketing manager. “We’re excited about the Grizzly 550 and expect it to make a major impact on the utility ATV market.  The 550 essentially combines the features of the award- and shootout-winning 700 with a slightly smaller engine and a value-packed price tag.”

The Grizzly 550 FI is jam-packed with the features and benefits customers have come to expect from Yamaha, starting with reliable power from the 558cc liquid-cooled, four-valve SOHC engine. As on the Grizzly 700 FI, the 550 features a forged piston for reduced weight and added durability, while an aluminum cylinder body with composite coating offers reduced weight, increased cooling ability and additional wear resistance. The roller rocker arms reduce friction in the valve train, which allows the engine to rev more freely leading to better overall performance and improved throttle response. The Grizzly 550 also receives an all-new cylinder head for improved throttle response and bottom end power.

The Yamaha EPS system is unparalleled in the industry and has received numerous awards and praise from customers. As the rider turns the handlebars and the torque- and speed-sensing EPS system senses the twisting force put on the handlebars and wheels, the electric motor kicks in and assists in the turn. The harder the rider turns, the more the EPS assists allowing the rider to tackle the toughest terrain with the least amount of effort.

Although the EPS system is definitely a favorite feature, the Grizzly 550 FI is also offered without power steering and starts at approximately $700 less (MSRP) for the budget-minded customer.

The Yamaha Fuel Injection system (YFI) improves throttle response throughout the powerband, helping the rider take advantage of the low- to mid-range power. YFI offers unmatched performance at high elevation as the system is able to detect and compensate for changes in altitude. The more precise fuel delivery offered by the YFI makes consistent power, better throttle response and improved fuel economy under a multitude of riding situations. In addition, YFI means no choke and easier cold starting.

Also gracing the Grizzly 550 FI is Yamaha's industry-exclusive Ultramatic™ automatic transmission system. The transmission’s gearing makes full use of the powerband under a variety of riding situations, and the automatic centrifugal clutch maintains constant belt tension for reduced belt wear and industry-exclusive all-wheel downhill engine braking. The shift lever is conveniently located on the left side, and gear options include high, low, park, neutral and reverse.

An all-new open gate shifter -- updated from the shifter found on the 2008 Grizzly 700 FI -- allows the rider to easily see what gear he or she has selected. This is also easy to see on the LCD display, which offers dual trip meter, speedometer and odometer in addition to gear selection, fuel level indicator, On-Command™ indicator, and EPS and fuel injection indicator lights. The EPS and fuel injection indicator lights let the rider know when the systems need to be serviced according to the self diagnostic system.

The three-way On-Command system, featuring push-button 2WD/4WD and 4WD with differential lock, compliments the Grizzly 550 FI powerhouse. Located on the right handlebar, the push-button is at the rider’s fingertips to command all four wheels as the terrain dictates.

The Grizzly 550 FI offers other "extras" that go a long way in making this machine durable and provide added convenience to the rider. The air intake is located on top of the engine allowing for easier access and service as well as helping to keep water and other debris from entering the air box. The CVT air intake and exhaust ducts are also centrally located and mounted to help reduce the possibility of debris and water entering the transmission system. New A-arm guards cover more surface area, which increases protection of vital components while a new, improved CV boot material gives better resistance to tearing even when battling the nastiest of elements.

The fuel tank is placed under the seat for maximum centralization of mass. The front and rear shocks are mounted lower on the A-arm compared to competitive models, which improves the low center of mass feeling.

Fully independent wishbone front and independent rear suspension (IRS) ensures optimal traction and terrainability from the Grizzly 550.  The adjustable suspension in both the front and rear offers the rider the versatility to set-up the ATV for all riding conditions. Featuring 7.1 inches of travel up front and a class-leading 9.5 inches in the rear, the Grizzly 550 FI is ready to tackle just about any terrain. What’s more, 11.8 inches of ground clearance makes it an unrivaled trail performer. The Grizzly 550 FI also features the Yamaha-exclusive WideArc front suspension, which offers five inches of more useable ground clearance in front.

Another popular feature found on both the 700 and now the 550 is the class leading four-wheel hydraulic disc brakes. Most full-featured models see three discs, two up front and one on the rear axle, which controls braking for both rear wheels. In the case of the Grizzly 550 FI, brake calipers are coupled to each wheel individually for unmatched braking feel and power.

The Grizzly 550 FI also features ground-grabbing tires mounted to aluminum wheels to get you moving. The Dunlop tires feature a Yamaha-exclusive tread pattern for excellent traction and rider comfort.

On the side of comfort and convenience, the Grizzly 550 FI boasts a thick, plush seat and full floorboards for protection from the elements along with an all-new throttle lever shape.  Two storage boxes -- one under the seat and another found in the right front fender -- offer plenty of storage in a sealed, waterproof and water-resistant space. This is of course in addition to the 99 pounds and 187 pounds of carry capacity on the front and rear racks, respectively, and the 1,322 pounds of towing capacity. The SecureMount rack system offers superior fit and finish with Genuine Yamaha Accessories, which were designed in tandem with the ATV.

The Grizzly 550 FI EPS will be available at Yamaha dealerships in August 2008.  Models are available in Black Metallic, Hunter Green and Steel Blue with an MSRP of $7,799.  A Special Edition in Red Midnight Armor (MSRP $8,399) and a Hunter Edition in Realtree™ AP HD® Camouflage (MSRP $8,199) will also be out in August. The non-EPS model will be available in Black Metallic, Hunter Green and Steel Blue (MSRP $7,099) and a Hunter Edition version will also be available in Realtree™ AP HD® Camouflage (MSRP $7,499) at Yamaha dealerships in October 2008.

Specifications

2009 Grizzly 550 FI (EPS) Automatic 4X4

  • Engine Type – 558cc, 4-Stroke Single, Liquid Cooled w/ Fan, SOHC
  • Bore x Stroke – 92mm x 84mm
  • Compression Ratio – 9.3:1
  • Carburetion – Yamaha Fuel Injection (YFI) , 40mm
  • Ignition – 32 Bit ECU
  • Starting System – Electric
  • Transmission – Yamaha Ultramatic V-Belt / H,L,N,R,P
  • Engine Braking – All Wheel
  • Drive Train – Yamaha On-Command push button 3-way locking differential, 2WD, 4WD, locked 4WD; Shaft
  • Suspension/ Front – Independent Double Wishbone, 7.1” w/ 5-way Preload Adjustment.
  • Suspension/ Rear – Independent Double Wishbone, 9.5” w/ 5-way Preload Adjustment.
  • Brakes/ Front – Dual Hydraulic Disc
  • Brake/ Rear – Dual Hydraulic Disc
  • Tires/ Front – AT25x8-12 w/ Aluminum Wheels
  • Tires/ Rear – AT25x10-12 w/Aluminum Wheels
  • LxWxH – 81.3”x46.5”x48.8”
  • Seat Height – 35.6”
  • Wheel Base – 49.2”
  • Turning Radius – 126”
  • Ground Clearance – 11.8”
  • Fuel Capacity – 5.3 Gallons
  • Dry Weight – 600 Lbs
  • Rack Capacity – 99 Lbs.Fr. / 187 Lbs. Rr.
  • Towing Capacity – 1,322 Lbs.
  • Instrumentation – Digital LCD Multi-function display. Speedo, Odo, Dual Trip, Hour, Clock, Fuel, and Gear Position
  • Lighting – Dual 35W Halogen Multi-reflector Headlights & 21/5W Brake light

2009 Grizzly 550 FI (Non-EPS) Automatic 4X4

  • Engine Type – 558cc, 4-Stroke Single, Liquid Cooled w/ Fan, SOHC
  • Bore x Stroke – 92mm x 84mm
  • Compression Ratio – 9.3:1
  • Carburetion – Yamaha Fuel Injection (YFI) , 40mm
  • Ignition – 32 Bit ECU
  • Starting System – Electric
  • Transmission – Yamaha Ultramatic V-Belt / H,L,N,R,P
  • Engine Braking – All Wheel
  • Drive Train – Yamaha On-Command push button 3-way locking differential, 2WD, 4WD, locked 4WD; Shaft
  • Suspension/ Front – Independent Double Wishbone, 7.1” w/ 5-way Preload Adjustment.
  • Suspension/ Rear – Independent Double Wishbone, 9.5” w/ 5-way Preload Adjustment.
  • Brakes/ Front – Dual Hydraulic Disc
  • Brake/ Rear – Dual Hydraulic Disc
  • Tires/ Front – AT25x8-12
  • Tires/ Rear – AT25x10-12
  • LxWxH – 81.3”x46.5”x48.8”
  • Seat Height – 35.6”
  • Wheel Base – 49.2”
  • Turning Radius – 126”
  • Ground Clearance – 11.8”
  • Fuel Capacity – 5.3 Gallons
  • Dry Weight – 600 Lbs
  • Rack Capacity – 99 Lbs.Fr. / 187 Lbs. Rr.
  • Towing Capacity – 1,322 Lbs.
  • Instrumentation – Digital LCD Multi-function display. Speedo, Odo, Dual Trip, Hour, Clock, Fuel, and Gear Position
  • Lighting – Dual 35W Halogen Multi-reflector Headlights & 21/5W Brake light

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