2008 Yamaha Grizzly 660 Auto. 4x4
The highly-evolved 660cc liquid-cooled four stroke engine, long-travel four-wheel independent suspension and a class-leading power-to-weight ratio add up to one serious, tough ATV
Pricing/Color Information
Features
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Highly evolved, 660cc liquid-cooled, four-stroke ?ve-valve engine and light weight add up to one of the best power-to-weight ratios of any utility model in the industry.
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, unmatched durability and con?dent all-wheel downhill engine braking.
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 the simple push of a button.
Fully independent long-travel four-wheel suspension with ?ve-way preload-adjustable shocks and 11.8 inches of ground clearance provides maximum control and comfort over rough terrain.
Trick digital instrument panel boasts a multifunction LCD display with speedometer, odometer, dual tripmeters, hourmeter, 4WD status, transmission position, clock and fuel gauge.
All-wheel independent suspension, a thick, cushy seat and light handling make for a supremely comfortable ride.
Lightweight yet super-strong CAD-designed steel frame results in the lightest weight in the class—600 pounds—which results in outstanding handling and performance.
Yamaha’s patented five-valve cylinder design produces a potent combination of low-rev torque, right-now throttle response and high horsepower.
42mm Mikuni BSR carburetor and high-output DC-CDI ignition system ensure incredible throttle response and engine performance.
Pushbutton electric starting with auxiliary recoil starter and auto decompression cam for “easy-pull” backup starter convenience.
Dual-range (Hi/Lo) drive with reverse taps into massive pulling power in low and superior performance in high.
Specially designed full stainless steel exhaust system features aluminum heat shields and a screen-type spark arrestor for great power with minimum noise output.
Override button allows engine to make maximum rpm in full Diff Lock mode.
Compact engine design features a 45-degree cylinder angle for maximum ground clearance and lower seat height—for quick steering and maneuverability.
Gear-driven crankshaft balancer shaft and rubber-damper engine mounts reduce vibration.
Large-capacity aluminum radiator with fan-assist delivers maximum cooling efficiency and is positioned high in the frame for optimal protection.
Low-maintenance front shaft drive features a gear case and electronic servo-activated 2WD/4WD/Diff Lock via the On-Command® system.
Direct rear shaft drive eliminates the U-joint for greater durability and more efficient power transfer at all rpm.
Sealed drive case keeps out water and debris to help prevent belt from slipping.
Easy-access, tool-free air filter box.
Large-diameter ventilated hydraulic front disc brakes and shaft-mounted hydraulic rear disc system ensure outstanding stopping power in a variety of conditions.
Light, responsive steering and a class-leading turning radius combine for increased comfort and incredible maneuverability — even in 4WD.
7.1 inches front suspension travel and 9.5 inches out back, controlled by five-way preload adjustable shocks, provide a controlled, comfortable ride whatever the load or trail conditions.
11.8 inches of ground clearance and full-length composite skid plate deliver maximum underbelly protection while enhancing terrainability.
34.6-inch seat height creates a low center of gravity for improved handling and maneuverability.
25x8-12 front and 25x10-12 rear tires on, lightweight aluminum wheels further boost ground clearance while reducing unsprung weight for lighter, more responsive steering.
Heavy-duty front carry bar and CV joint guards protect against rock and debris damage.
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 over 1200 pounds.
Handy, 12-liter underseat storage box.
Large, 5.3-gallon fuel tank features an electronic, bar-type gauge and easy-access petcock.
Wide, fully integrated floorboards feature serrated footpegs for extra grip in wet conditions.
Large, specially designed seat is extra plush and widely contoured for all-day rider comfort.
Dual 30-watt multi-reflector Krypton bulb headlights with high/low beams feature stylishly sleek cat-eye design; 5-watt/21-watt tail/brake light.
Convenient, water-resistant 12-volt DC power outlet handles a wide range of accessories.
Maintenance-free 18-amp-hour battery provides extra starting power, even in cold weather.
Underseat marine-spec electrical components ensure maximum protection from the elements.
2008 Yamaha Grizzly 660 Auto. 4x4
Specifications
Engine
- Starting System
- Electric w/auxiliary pull
- Type
- 660cc, 4-stroke, liquid-cooled single; SOHC, 5 valves
- Bore x Stroke
- 100.0mm x 84.0mm
- Compression Ratio
- 9.1:1
- Carburetor
- Mikuni 42mm BSR
- Fuel Capacity
- 5.3 gal
Transmission
- Ignition
- DC – CDI
- 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
- Brake Front
- Dual hydraulic discs
- Brake Rear
- Hydraulic disc, 4-piston caliper; shaft-mounted
- Tires Front
- AT25 x 8-12 w/aluminum wheels
- Tires Rear
- AT25 x 10-12 w/aluminum wheels
- Turning Radius
- 126 in
Dimensions
- Ground Clearance
- 11.8 in
- Dimensions (LxWxH)
- 82.1 x 45.3 x 47.6 in
- Seat Height
- 34.6 in
- Wheelbase
- 50.2 in
- Dry Weight
- 600 lb
- Capacity
- (Rack) 99 lb Fr./187 lb Rr.
General Information
- Towing Capacity
- 1,212 Lb.




