The Yamaha Grizzly 550 FI Auto 4x4 EPS is the ultimate utility ATV that has garnered its share of awards, and certainly more than lives up to the hype.

The Grizzly 550 FI Auto 4x4 EPS carries the same specs as that of the standard 550 FI Auto 4x4 version, with the notable exception being that it carries Electric Power Steering. This assist feature lightens steering for superior comfort and terrainability. In terms of performance, the ATV is powered by a 558cc 4-stroke SOHC 4-valve liquid-cooled engine that is mated to Yamaha’s own fully automatic Ultramatic transmission, the most advanced drive system in the ATV market.

Rugged steel cargo racks with special, extra-durable wrinkle paint finish can pack a combined total of 286 pounds while a center-mounted, heavy-duty trailer hitch comes standard and can tow more than 1300 pounds. The ATV also has a trick digital instrument panel that boasts of a multifunction LCD display with speedometer, odometer, dual tripmeter, hour meter that counts the engine’s running hours, 4WD status, transmission position, clock, and fuel gauges. Dual 35-watt multireflector halogen bulb headlights with high/low beams provide the kind of illumination that makes nighttime work or play a breeze.

As far as handling is concerned, the ATV has a full-size chassis that provides the same high level of comfort enjoyed by Grizzly 700 riders. Front and rear lower A-arm guards offer excellent protection, and feature the company’s WideArc front A-arms that are 5’ wider for outstanding ground clearance.

Whether you opt for the "standard" Grizzly 550 FI Auto 4x4 or the one with the EPS version, one thing remains clear: you win either way.

Find out more about the Yamaha Grizzly 550 FI Auto 4x4 EPS after the jump.

  • 2012 Yamaha Grizzly 550 FI Auto 4x4 EPS
  • Year:
    2012
  • Make:
  • Model:
  • Engine:
    4-stroke SOHC 4-valve liquid-cooled engine
  • Transmission:
    fully automatic Ultramatic transmission
  • Displacement:
    558 L

Performance

2012 Yamaha Grizzly 550 FI Auto 4x4 EPS High Resolution Exterior
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  • This 558cc 4-stroke SOHC 4-valve liquid-cooled engine is derived

directly from the industry-leading Grizzly 700 powerplant.

  • Compact engine design features a 35-degree cylinder angle

for ground clearance and lower seat height for quick steering
and maneuverability.

  • Ceramic-composite cylinder liner provides outstanding durability

and heat dissipation; 92mm forged piston is light and strong and
rides on a carburized chrome-moly connecting rod.

  • Two-lobe overhead cam and a pair of needle-roller rocker

arms reduce friction by 50 percent for increased fuel efficiency
and torque.

  • Gear-driven crankshaft balancer shaft and 4-position rubber

engine mounts reduce vibration.

  • Yamaha Fuel Injection uses a Mikuni 40mm throttle body and

idle speed control valve to provide easy cold starts and
flawless fuel delivery in nearly any condition, from below sea
level to 15,000 feet.

  • Stainless steel exhaust system features aluminum heat shields

and a screen-type spark arrestor for great power with minimum
noise output.

  • High-capacity aluminum radiator with fan motor delivers

maximum cooling efficiency and is positioned high in the frame
for optimal protection.

  • Five-position shift lever with L, H, N, R and P gates has a light

shifting feel with easy engagement, providing positive Ultramatic
transmission control.

  • Sealed drive case keeps out water and debris to help

increase durability.

Chassis and Suspension:

2012 Yamaha Grizzly 550 FI Auto 4x4 EPS High Resolution Exterior
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  • Electric Power Steering. This assist feature, pioneered by Yamaha

on the Grizzly 700 FI EPS, lightens steering for superior comfort
and terrainability.

  • 5.3-gallon fuel tank is located under the seat for excellent mass

centralization and handling; there’s a 4.8-liter waterproof storage
compartment under there, too.

  • 11.8 inches of ground clearance and full-length composite

skidplate deliver maximum underbelly protection while
enhancing terrainability.

  • 25x8-12 front and 25x10-12 rear Maxxis tires provide responsive

steering and handling and excellent comfort.

  • Rugged injection-molded front bumper and CV joint guards

protect against rock and debris damage.

  • Full-size chassis provides the same high level of comfort enjoyed

by Grizzly 700 riders.

  • Five-way preload-adjustable shocks provide a comfortable ride,

whatever the load or trail conditions.

  • Front and rear lower A-arm guards offer excellent protection

—and Grizzly 550 features WideArc front A-arms for
outstanding ground clearance that’s 5 inches wider than
that provided by ordinary designs.

  • Four-wheel hydraulic disc brakes serve up consistent,

long-lasting braking power.

  • Direct driveshaft design efficiently transfers power while

providing outstanding durability with less vibration.

Key Selling Points

2012 Yamaha Grizzly 550 FI Auto 4x4 EPS High Resolution Exterior
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  • The 550cc class has a leader, with a fully featured package based on its best-selling bigger brother, the Grizzly 700 FI, with a largest-inclass

558cc powerplant, Electric Power Steering and excellent value.

  • Steel Blue model includes cast aluminum wheels.
  • Yamaha Fuel Injection means instantaneous cold starts and optimal performance in nearly any condition, from sea level to 15,000 feet.
  • Electric Power Steering system lightens steering for superior comfort and terrainability.
  • Industry-exclusive, fully automatic Ultramatic transmission is the most advanced drive system in ATVs. An automatic centrifugal clutch maintains

constant belt tension for reduced belt wear and uses a sprag clutch for all-wheel downhill engine braking in 4WD mode.

  • Three-position On-Command In/Out 4WD feature lets you switch between 2WD, limited-slip 4WD and fully locked differential 4WD—all with a simple push of a button.
  • Fully independent long-travel four-wheel suspension features double-wishbone suspension front and rear with five-way preload-adjustable shocks for maximum control and comfort over rough terrain.
  • Smoothest-running and -riding Grizzly ever.
  • Trick digital instrument panel boasts a multifunction LCD display with speedometer, odometer, dual tripmeter, hour meter that counts the engine’s running hours, 4WD status, transmission position, clock and fuel gauge.
  • The Grizzly 550 EPS boasts the lightest weight in its class at only 648 pounds wet weight.

Specifications

2012 Yamaha Grizzly 550 FI Auto 4x4 EPS High Resolution Exterior
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Model YFM5FGPBL; YFM5FGPBGR; YFM5FGPHB
Engine Type 558cc, 4-stroke, liquid-cooled single;
SOHC, 4 valves
Bore x Stroke 92.0 x 84.0mm
Compression Ratio 9.3:1
Fuel Delivery 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
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
Brake/Front Dual hydraulic disc
Brake/Rear Dual hydraulic disc
Tire/Front AT25 x 8-12
Tire/Rear AT25 x 10-12
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
Wet Weight 648 lb
Rack Capacity 99 lb Fr./187 lb Rr.
Towing Capacity 1322 lb
Instrumentation Digital LCD multifunction display; speedometer,
odometer, dual tripmeter, hour meter,
clock, fuel gauge and gear position
Lighting Dual 35W halogen multi-reflector
headlights & 21W/5W brakelight
Color Steel Blue; Hunter Green;
Realtree AP Camouflage
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