Back to 2010 Yamaha ATV Quad Models Index Page

Click photos to enlarge.
They make great desktop images.

2010 Yamaha Grizzly 550 FI
2010 Yamaha Grizzly 550 FI

2010 Yamaha Grizzly 550 FI
2010 Yamaha Grizzly 550 FI

2010 Yamaha Grizzly 550 FI
2010 Yamaha Grizzly 550 FI

– 2010 Yamaha Grizzly 550 FI

2010 Yamaha Grizzly 550 FI

The 500cc class leader with a fully featured package with a new 558cc powerplant and excellent value.

The 2010 Yamaha Grizzly 550 EPS comes fully equipped with a powerful fuel injected 558cc 4-stroke engine, On-Command 4-wheel drive, 4-wheel disc brakes, the fully automatic ULTRAMATIC transmission, and electric power steering. The combination of these key features and Yamaha’s proven durability and reliability, contrinue to make the 2010 Yamaha Grizzly one of the best selling ATV.

Following in its bigger sibling’s path, the 550 comes with all the same great features as the famed 700.

All 550 Grizzly’s come standard with powerful fuel injected engines for easy cold starting, superior ground clearance to get you over any terrain, and 4-wheel disc brakes combined with full-time engine braking means slowing the Grizzly down requires less effort. Throw in Yamaha’s exclusive Ultramatic® transmission and On-Command drive selection and these Grizzly’s are the ultimate in all terrain vehicles.

“In our annual 550 Shootout, the Grizzly took top honours for ride quality against formidable competition … picking your way over gnarly trails or opening it up on fire roads, this is a superb engine and tranny combo.” – All Terrain Vehicle magazine



Key Features:
” The 500cc class has a leader, with a fully featured package based on its best-selling bigger brother, the Grizzly 700 FI, with a 558cc powerplant and excellent value.
” Yamaha Fuel Injection means instantaneous cold starts and optimal performance in nearly any condition, from below sea level to 15,000 feet.
” Industry-exclusive, fully automatic Ultramatic® transmission is 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 in 4WD Diff. Lock mode.
” Industry-exclusive, 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 for maximum control and comfort over rough terrain.
” Trick digital instrument panel boasts a multifunction LCD display with speedometer, odometer, dual tripmeter, hour meter that counts hours that the engine is running, 4WD status, transmission position, clock and fuel gauge.


” This 558cc 4-stroke SOHC 4-valve liquid-cooled engine is derived directly from the industry-leading Grizzly 700 powerplant.
” 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.
” The cylinder head has been optimized to deliver excellent throttle response and low-end power, roller-bearing rocker arms to reduce friction for 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.
” Pushbutton electric start with seven-disc torque-limiting damper assembly to protect the starter motor.
” 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.
” Override button allows engine to make maximum rpm in full Diff. Lock mode.
” Electronic servo-activated 2WD/4WD/Diff. Lock via the On-Command® system.
” Sealed drive case keeps out water and debris to help prevent belt from slipping.


” Full-size chassis provides the same high level of comfort enjoyed by Grizzly 700 riders.
” 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.
” Five-way preload-adjustable shocks provide a comfortable ride, whatever the load or trail conditions.
” CV boots are made of tough polyethylene for more durability than typical rubber boots.
” Four-wheel hydraulic disc brakes serve up consistent, long-lasting braking power.
” 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.
” 25×8-12 front and 25×10-12 rear Dunlop® tires provide responsive steering and handling and excellent comfort.
” Direct driveshaft design efficiently transfers power while providing outstanding durability with less vibration.


Additional Features:
” Trick digital instrument panel boasts a multifunction LCD display with speedometer, odometer, dual tripmeter, hour meter that counts hours that the engine is running, 4WD status, transmission position, clock and fuel gauge.
” Rugged steel cargo racks with special, extra-durable wrinkle paint finish can pack a total of 286 pounds combined (99 front, 187 rear).
” Center-mounted, heavy-duty trailer hitch comes standard and can tow more than 1300 pounds.
” Dual 35-watt multireflector halogen bulb headlights with high/ low beams provide bright illumination for nighttime work or play.



2010 Yamaha Grizzly 550 FI – USA Specifications
MSRP* $7,999 (Realtree AP Camo) Available from September 2009
$7,599 (Hunter Green) Available from November 2009
$7,599 (Steel Blue) Available from November 2009

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

Brakes/Front Dual hydraulic disc

Brakes/Rear Dual hydraulic disc

Tires/Front AT25 x 8-12

Tires/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 multireflector headlights & 21W/5W brakelight

Warranty 6 Month (Limited Factory Warranty)



2010 Yamaha Grizzly 550 FI – Canada Specifications
Canadian MSRP* $10,449 CDN

Engine 4-stroke, SOHC, liquid cooled, 4-valve, single
Displacement 558 cc
Bore and Stroke 92mm x 84 mm
Compression Ratio 9.3 : 1
Carburetion Mikuni Electronic Fuel Injection w/40mm Big Bore throttle bodies and TPS
Ignition computerized DC-CDI with 32 bit ECU
Starting electric w/auto-decompression
Transmission Ultramatic (sealed variable v-belt), w/ L-H-N-R and Park, 4-wheel full-time engine breaking
Final Drive On-command push button 2WD / 4WD / 4WD diff. lock, direct shaft drive

Suspension (Front) independent, dual A-arm, with gull-wing lower A-arm, and adjustable shocks
Suspension (Rear) independent, reverse mounted dual A-arm with sway bar, adjustable shocks
Brakes (Front) hydraulic discs
Brakes (Rear) hydraulic discs
Tires (Front) Dunlop KT421 tubeless, AT25 x 8-12
Tires (Rear) Dunlop KT425 tubeless, AT25 x 10-12

Length 2065 mm (81.3″)
Width 1180 mm (46.5″)
Height 1240 mm (48.8″)
Wheelbase 1250 mm (49.2″)
Ground Clearance 300 mm (11.8″)
Seat Height 905 mm (35.6″)
Dry Weight 272 kg (600 lb)
Wet Weight 294 kg (648 lb) – ready to ride full of fuel and oil
Fuel Capacity 20 litres (5.3 U.S. gal)
Towing Capacity 600 kg (1,322 lb)
Colour(s) Dark Blue




ATV Safety Notes

– ATVs with engines 70 to 90cc are recommended for use only by riders 12 years and older and always with adult super vision. ATVs with engines 90cc or greater are recommended for use only by riders ages 16 years and older.

– Yamaha recommends that all ATV riders take an approved training course. For safety and training information, see your dealer or call the ATV Safety Institute at 1-800-887-2887.

– ATVs can be hazardous to operate. For your safety, always avoid paved surfaces. Never ride on public roads. Always wear a helmet, eye protection and protective clothing.

Never carry passengers. Never engage in stunt riding. Riding and alcohol/drugs don’t mix. Avoid excessive speed. And be particularly careful on difficult terrain. There are few joys in life equal to the free-spirited thrill and experience of ATV riding. And that’s why it’s important for all of us to do
our part as responsible riders. By following logical, common-sense rules, we can maintain season after season of unparalleled enjoyment of our sport.

– Please remember to “tread lightly.” Always ride in a responsible manner, respecting the environment as well as all state and local laws. The riders in this brochure are professionals; don’t attempt to emulate them. Prices and specifications subject to change without notice. Please read your Owner’s Manual and all labels before operation. All ATVs come with a six-month Limited Factory Warranty. See your dealer for details.