2009 Grizzly 550 FI Auto. 4×4

The Yamaha Grizzly 500 FI ATV offers a 558cc, 4-stroke, SOHC, 4-valve, liquid-cooled engine that is derived directly from the industry-leading Grizzly 700 powerplant. The Grizzly 550 Fi comes fully automatic offering the most advanced drive system in ATV-ing. An automatic centrifugal clutch maintains constant belt tension for reduced belt wear and industry-exclusive all-wheel downhill engine braking.

With an industry-exclusive, three-position On-Command® In/Out RWD feature lets you switch between 2WD, limited-slip 4WD and fully locked differential 4WD—all with a simple push of a button.

Grizzly 550 FI Engine Specifications

Type- 558cc, 4-stroke, liquid-cooled single; SOHC, 4 valves
Bore x Stroke- 92.0 x 84.0mm
Compression Ratio- 9.3:1
Carburetion- Yamaha Fuel Injection (YFI), 40mm
Ignition- TCI, 32-bit ECU
Starting System- Electric
Transmission- Yamaha Ultramatic® V-belt with all-wheel engine braking/H, L, N, R, P
Drive Train- Yamaha On-Command® pushbutton; 3-way locking differential; 2WD, 4WD, locked 4WD; shaft drive.

Chassis

Suspension/Front- Independent double wishbone; 5-way preload adjustment, 7.1-in travel
Suspension/Rear- Independent double wishbone; 5-way preload adjustment, 9.5-in travel
Brakes/Front- Dual hydraulic disc
Brakes/Rear- Dual hydraulic disc
Tires/Front- AT25 x 8-12
Tires/Rear- AT25 x 10-12

Dimensions-

L x W x H- 81.3 x 46.5 x 48.8 in
Seat Height - 35.6 in
Wheelbase- 49.2 in
Turning Radius- 126 in
Ground Clearance- 11.8 in
Fuel Capacity- 5.3 gal
Dry Weight- 600 lb
Rack Capacity- 99 lb Fr./187 lb Rr.
Towing Capacity- 322 lb