2012 Yamaha Grizzly 450 Auto. 4x4 EPS

The Yamaha Grizzly 450 is the middle-tier member of Yamaha’s Grizzly family. While it doesn’t come with the simplicity of the entry models or the high-end specs of the top-of-the-line versions, it does offer a variety of features that has made a proven commodity.

The Grizzly 700-inspired front-end styling boasts plenty of unique details, including a convenient water-resistant storage compartment on the front fender. There are also steel cargo racks with a special paint finish that features a combined cargo capacity of 264 pounds; a large-capacity, 4-gallon fuel tank with a built-in gauge and easy-to-reach petcock valve; wide, fully integrated floorboards to keep riders’ feet dry and feature serrated footpegs for extra grip in wet conditions; large front and rear fenders with inner guards that offer excellent mud/splash protection; and, dual, bright multireflector 30-watt Krypton bulb headlights with high and low beams.

The engine is a 421cc, 4-stroke, liquid-cooled single engine that comes with a semi-oval slide 33mm BSR Mikuni carburetor and a high-output DC-CDI ignition system that delivers tremendous throttle response and engine performance across the board. The whole technical set-up also includes a large-capacity aluminum radiator that provides maximum cooling
efficiency, a stainless steel muffler and header design that has superior
power characteristics, exhaust sound and durability, and a specially-designed drive system air intake vent that helps prevent overheating and keeps water and mud from entering drive case.

As far as handling is concerned, the Grizzly 450 has a lightweight chassis that has outstanding durability with superior rigidity for class-leading agility and handling. This is complimented by a fully independent four-wheel double-wishbone suspension that features a suspension on the front and rear, delivering 6.3" and 7.1" of travel, respectively. Large-diameter ventilated hydraulic front disc brakes deliver tremendous stopping power to round out the set-up of the sturdy Yamaha ATV.

Find out more about the Yamaha Grizzly 450 after the jump.

Engine

Yamaha Grizzly 450 Auto. 4x4 EPS
  • 421cc liquid-cooled, SOHC four-stroke single is rugged and powerful.
  • Electric Power Steering system lightens steering for superior comfort and less rider fatigue.
  • Semi-oval slide 33mm BSR Mikuni carburetor and high-output DC-CDI ignition deliver fantastic throttle response and engine performance at all rpm.
  • Pushbutton electric starting.
  • Stainless steel muffler and header design provides superior power characteristics, exhaust sound and durability.
  • Left-side–mounted (Hi/Lo/N/R/P) shift lever is easily accessible.
  • Large-capacity aluminum radiator provides maximum cooling efficiency and is positioned high in frame for optimal protection.
  • Compact engine design features a 45-degree cylinder angle for maximum ground clearance and lower seat height for quick, responsive steering and agility.
  • Gear-driven crankshaft balancer and rubber-damper engine mounts reduce vibration.
  • Specially designed drive system air intake vent helps prevent overheating and keeps water and mud from entering drive case.
  • Tool-free air filter box for easy access and quick maintenance.

Chassis and Suspension:

Yamaha Grizzly 450 Auto. 4x4 EPS
  • Lightweight chassis features outstanding durability with superior rigidity for class-leading agility and handling.
  • Light steering and a class-leading turning radius combine for increased comfort and incredible maneuverability—even in 4WD.
  • Fully independent four-wheel suspension features a doublewishbone suspension front and rear delivering 6.3 inches and 7.1 inches of travel.
  • Using a newly-designed multi-disc system running in gear oil, the sealed rear wet brake combines strong, consistent stopping power and greatly reduced maintenance requirements.
  • Large-diameter ventilated hydraulic front disc brakes deliver tremendous stopping power in a variety of conditions.
  • Direct front shaft drive eliminates U-joint for greater durability and more efficient power transfer when engaged in 4WD.
  • Heavy-duty composite front carry bar and CV joint guards help prevent damage to boot covers and won’t dent or rust.

Additional Features:

Yamaha Grizzly 450 Auto. 4x4 EPS
  • Grizzly 700-inspired front-end styling boasts convenient water-resistant storage compartment on the front fender.
  • The water-resistant DC outlet is located to the side of the multifunction instrument panel for convenient access; automotive style receptacle handles a wide range of accessories.
  • Steel cargo racks with special, extra-durable wrinkle paint finish feature a combined cargo capacity of 264 pounds (88 front, 176 rear).
  • Available in Realtree AP camouflage with a water-dipped process for durability.
  • Large-capacity, 4-gallon fuel tank has a built-in gauge and easyto- reach petcock valve.
  • Water-resistant, large-capacity underseat storage box provides added convenience.
  • Wide, fully integrated floorboards keep rider’s feet dry and feature serrated footpegs for extra grip in wet conditions.
  • Large front and rear fenders with inner guards offer excellent mud/splash protection.
  • Easy-access, underseat marine-spec electrical components ensure maximum protection from the elements.
  • Dual, bright multireflector 30-watt Krypton bulb headlights with high and low beams; rear brake light.
  • Assembled in Newnan, GA, U.S.A.

Specifications

Yamaha Grizzly 450 Auto. 4x4 EPS
ModelYFM45FGPBL; YFM45FGPBG; YFM45FGPHB
Engine Type421cc, 4-stroke, liquid-cooled single; SOHC
Bore x Stroke84.5 x 75.0mm
Compression Ratio10.0:1
Fuel DeliveryMikuni 33mm BSR
IgnitionDC-CDI
Starting SystemElectric
TransmissionYamaha Ultramatic V-belt with
all-wheel engine braking; H, L, N, R, P
Drive TrainYamaha On-Command pushbutton;
3-way locking differential; 2WD,
4WD, locked 4WD; shaft drive
Suspension/FrontIndependent double wishbone;
6.3-in travel
Suspension/RearIndependent double wishbone;
7.1-in travel
Brakes/FrontDual hydraulic disc
Brake/RearSealed oil bathed, multi disc
Tire/FrontAT25 x 8-12
Tire/RearAT25 x 10-12
L x W x H78.5 x 43.0 x 44.1 in
Seat Height33.1 in
Wheelbase48.5 in
Turning Radius118 in
Ground Clearance10.8 in
Fuel Capacity4.0 gal
Wet Weight620 lb
Rack Capacity88 lb Fr./176 lb Rr.
Towing Capacity1322 lb
InstrumentationDigital LCD multifunction display:
speedometer, odometer, dual tripmeter,
hour meter, clock, gear position and fuel
gauge
LightingDual 30W Krypton multireflector
headlights & 21W/5W brakelight
ColorSteel Blue; Hunter Green;
Realtree AP Camouflage

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