2012 Yamaha Grizzly 550 FI Auto 4x4 EPS

Performance

• 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:

• 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

• 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