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Key Features:
  • The Grizzly 660 Outdoorsman Editions w/Kit have a deluxe gun scabbard, front brush guard, rear rack extension, a rear rack bag and come in Realtree Hardwoods® Camo or Hunter Green.
  • The Hunter Edition feature two patterns to choose from including Realtree Hardwoods® High Definition Camouflage and the Ducks Unlimited Edition, which gets Advantage Max-4™ High Definition Camouflage and a matching rear bag.
  • The upscale Grizzly 660SE gets all-new aluminum wheels, red trim, special graphics and carbon-styled side covers.
  • Highly evolved, liquid-cooled, five-valve, 660cc four-stroke 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 confident all-wheel downhill engine braking.


  • 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° 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 inch front suspension travel and 9.5 inches out back, controlled by five-way preload adjustable shocks, provide a 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 for excellent handling and maneuverability.
  • 25 x 8-12 front and 25 x 10-12 rear tires on, lightweight aluminum wheels further boost ground clearance while reducing unsprung weight for lighter, 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.


  • MSRP*:
         $7,949 Outdoorsman Edition w/Kit (Hardwoods HD Camo) Available from September 2005
         $7,599 Outdoorsman Edition w/Kit (Hunter Green) Available from September 2005
         $7,699 Ducks Unlimited Edition (Advantage MAX-4 HD) Available from September 2005
         $7,599 Special Edition (Dark Grey Metallic/Red) Available from November 2005
         $7,549 Hunter (Hardwoods HD Camo) Available from July 2005
         $7,199 (Hunter Green) Available from July 2005
         $7,199 (Steel Blue) Available from July 2005
         $7,199 (Red) Available from July 2005


  • 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 with Hi,Lo,Neut.,Rev.,Park
  • 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 Discs
  • Brakes/Rear: Hydraulic Disc, Four Piston, Shaft Mounted
  • Tires/Front: AT25 x 8-12 w/ Aluminum Wheels
  • Tires/Rear: AT25 x 10-12 w/ Aluminum Wheels


  • L x W x H: 82.1” x 45.3” x 47.6”
  • Seat Height: 34.6”
  • Wheelbase: 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, Odometer, Dual Trip, Hour, Clock, Fuel, & Gear Position
  • Lighting: Dual 30W Krypton Multi-reflector Headlights & 21/5W Brake light
  • DC Outlet Standard
  • Warranty: 6 Month (Limited Factory Warranty)

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