2012 Yamaha Big Bear 400 IRS 4x4 Utility ATV Info - Features, Benefits and Specifications

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Key Features | Engine | Chassis/Suspension | Additional Features | Specifications


2012 Yamaha Big Bear 400 IRS 4x4 Utility ATV

Big Bear 400 IRS ATV Key Features

Potent, 386cc air-/oil-cooled, SOHC four-stroke single delivers reliable, class-leading low-end and midrange power to tackle the hardest chores and toughest trails.
Independent rear suspension offers excellent terrainability and all-day comfort.
Class-exclusive, pushbutton On-Command® with Diff Lock makes switching from 2WD to 4WD to 4WD Diff Lock a snap.
Constant-mesh fi ve-speed transmission with automatic clutch, reverse and super-low stump-pulling fi rst gear means this is one hard-working ATV.
Sealed wet brake out back provides long-lasting, consistent stopping power in even the harshest conditions.
Full fl oorboards and high ground clearance keep the rider high and as dry as possible.
Number-one-selling aftermarket ITP® Mud Lite tires make the Big Bear 400 an excellent mud machine.
Pushbutton electric starting in any gear is backed up by an auxiliary recoil starter.

Simple yet powerful 386cc air-/oil-cooled, SOHC engine inhales through a heated, semi-oval slide 33mm BSR Mikuni® carburetor for seamless throttle response and excellent all-weather performance.
DC-CDI ignition system ensures dependable starting and puts out consistent spark at all rpm for optimal engine performance.
Large-capacity oil cooler with cooling fan helps maximize engine efficiency, even under heavy loads.
Stainless steel muffler and header provide superior power characteristics, exhaust sound and unmatched durability.
Easy-access, tool-free air filter box.
Automatic cam chain tensioner reduces engine maintenance and helps extend engine life.

Special compact frame design uses fewer components to reduce weight and provide lighter steering, a tighter turning radius and superior durability.
Class-leading turning radius provides maximum maneuverability on tight trails and while working with heavy equipment.
Independent rear suspension makes this one super-comfortable, while it makes even more terrain accessible.
High-tech sealed wet brake provides consistent, long-lasting braking performance in hostile environments.
On-Command® drive selection with Diff Lock lets you access full power from 4WD locked.
Low seat height for great handling.
Plenty of ground clearance means superb terrainability.
Independent double-wishbone front suspension with five-way preload-adjustable shocks and 5.8 inches of travel.
Large-diameter ventilated hydraulic front disc brakes and a sealed rear wet brake provide plenty of stopping power in a variety of conditions.
Reliable, low-maintenance front and rear shaft drive.
Huge 25x8-12 front and 25x10-12 rear ITP® Mud Lite tires further boost ground clearance while providing great handling and traction.
Specially designed A-arms with removable ball joints provide smooth operation and outstanding reliability.
Built-in winch mounts.

Additional Features

Wrinkle-finish cargo racks are super-durable and can pack a class-leading total of 264 pounds (88 front, 176 rear) of payload.
Speedometer with odometer/tripmeter adds greater versatility and allows rider to keep track of engine maintenance intervals.
Standard center-mounted trailer hitch can hook up more than 900 pounds of payload.
Full floorboards, lots of ground clearance and a high-mount air intake are ready for mud.
Flat-style handlebars help lighten steering effort and deliver greater rider comfort.
Large front and rear fenders with inner splash guards offer excellent mud and splash protection.
Large-capacity, 4-gallon fuel tank has a built-in gauge.
Water-resistant, large-capacity underseat storage box provides added convenience.
Heavy-duty, full-coverage A-arm and CV joint boot protectors help prevent damage to boot covers.
Specially designed, thickly padded seat is widely contoured for incomparable rider comfort.
Mud-/water-resistant automotive-type DC power outlet powers a wide range of accessories.
Rugged, serrated footrests provide excellent grip and rider comfort with superb durability.
Maintenance-free 18-amp-hour battery provides extra starting power.
Underseat marine-spec electrical components ensure maximum protection from the elements and easy access.
Bright multireflector 30-watt headlights feature wide positioning to maximize low-light and nighttime visibility.
Easy-to-use, handlebar-mounted parking brake and choke lever.
Built in Newnan, GA, USA.