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Yamaha Motorsports

2007 Grizzly 660 Automatic 4X4

Grizzly 660 Blue
Grizzly 660 Blue

Grizzly 660 Camo
Grizzly 660 Camo

Grizzly 660 Green
Grizzly 660 Green

Grizzly 660 Red
Grizzly 660 Red

Key Features:

* Highly evolved, 660cc liquid-cooled, four-stroke five-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 ATVing. An automatic centrifugal clutch maintains constant belt tension for reduced belt wear, unmatched durability and confident 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 five-way preload-adjustable shocks and 11.8 inches of ground clearance provide maximum control and comfort over rough terrain.
* Trick digital instrument panel boasts a multifunction LCD display with speedometer, odometer, dual tripmeters, hour meter, 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 great 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.

Additional Features:

* 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.


Engine Type – 660cc, 4-Stroke Single, Liquid Cooled w/ Fan, 5-Valve SOHC

Bore x Stroke – 100mm x 84mm

Compression Ratio – 9.1:1

Carburetion – Mikuni 42mm BSR\

Ignition – DC – CDI

Starting System – Electric w/ Auxiliary Pull

Transmission – Yamaha Ultramatic V-Belt / H,L,N,R,P

Engine Braking – All Wheel

Drive Train – Yamaha On-Command push button 3-way locking differential, 2WD, 4WD, locked 4WD; Shaft

Suspension/ Front – Independent Double Wishbone, 7.1” w/ 5-way Preload Adjustment.
Suspension/ Rear – Independent Double Wishbone, 9.5” w/ 5-way Preload Adjustment.

Brakes/ Front – Dual Hydraulic Disc
Brake/ Rear – Hydraulic Disc, Four Piston, Shaft Mounted

Tires/ Front – AT25x8-12 w/ Aluminum Wheels
Tires/ Rear – AT25x10-12 w/Aluminum Wheels

LxWxH – 82.1”x 45.3”x 47.6”

Seat Height – 34.6”

Wheel Base – 50.2”

Turning Radius – 126”

Ground Clearance – 11.8”

Fuel Capacity – 5.3 Gallons

Dry Weight – 600 Lbs

Rack Capacity – 99 Lbs.Fr. / 187 Lbs. Rr.

Towing Capacity – 1,212 Lbs.

Instrumentation – Digital LCD Multi-function display. Speedo, Odo, Dual Trip, Hour, Clock, Fuel, and Gear Position

Lighting – Dual 30W Krypton Multi-reflector Headlights & 21/5W Brake light

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