2012 Yamaha Big Bear 400 4x4 IRS
The name of this Yamaha ATV is the Big Bear 400 and it’s as imposing as its name suggests, and it also provides a lot of useful features for hard core ATV riders.
Aesthetically, the ATV has flat-style handlebars that help provide light steering effort and great rider comfort while the large front and rear fenders offer excellent mud and splash protection. The ATV also has a water-resistant, large-capacity underseat storage box; a specially designed, thickly padded seat for rider comfort; rugged, serrated footrests that have excellent grip; and a huge set of 25" ITP Mud Lite tires.
Growling inside the Big Bear 400’s special compact frame design is a simple yet powerful 386cc air and oil-cooled, SOHC engine that breathes through a heated, semi-oval slide 33 mm BSR Mikuni carburetor, providing seamless throttle response and excellent all-weather performance. The engine is mated to a constant-mesh five-speed transmission that comes with an automatic clutch, a reverse gear, and a super-low stump-pulling first gear. Complimenting the ATV’s sturdy steel frame is an independent rear suspension that offers maximum ground clearance, excellent terrainability, and all-day comfort riders require for their vehicle. The ATV also has a sealed wet brake out back to provide impressive stopping power even in tough conditions.
One prominent feature of the Big Bear 400 is its class-exclusive, three-position On-Command In/Out 4WD feature which lets you switch between different sorts of drive systems, including 2WD, limited-slip 4WD, and fully locked differential 4WD, all by just a simple push of a button.
Find out more about the Yamaha Big Bear 400 after the jump.
2012 Yamaha Big Bear 400 4x4 IRS
Engine:air and oil-cooled, SOHC engine
Transmission:constant-mesh five-speed transmissio
- 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
- 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.
- Tool-free, easy-access air filter box.
- Automatic cam chain tensioner reduces engine maintenance
and helps extend engine life.
Chassis and Suspension
- Special compact frame design uses fewer components to reduce
weight and provide lighter steering, a tighter turning radius, and
- Class-leading turning radius provides maximum maneuverability
on tight trails and while working with heavy equipment.
- Independent double-wishbone front suspension with five-way
preload-adjustable shocks and 5.8 inches of travel.
- Independent rear suspension with five-way preload adjustment
and 7.6 inches of travel provides excellent handling and all
- 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 and a high mount air intake makes
this machine ready for muddy conditions.
- 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.
- Specially designed A-arms with removable ball joints provide
smooth operation and outstanding reliability.
- Built-in winch mounts.
— 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
1100 pounds of payload.
- Full floorboards, lots of ground clearance, and a high-mount air
intake are ready for mud.
- Flat-style handlebars help provide light steering effort and great
- Large front and rear fenders with inner splash guards offer
excellent mud and splash protection.
- Water-resistant, large-capacity underseat storage box provides
- 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.
- Large-capacity, 4-gallon fuel tank has a built-in gauge.
Mud and 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
- 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.
- Assembled in Newnan, GA, U.S.A.
|Model||YFM40FBBL; YFM40FBBGR; YFM40FBHB|
|Engine Type||386cc, 4-stroke, air/oil-cooled single; SOHC|
|Bore x Stroke||83.0 x 71.5mm|
|Fuel Delivery||Mikuni 33mm BSR|
|Starting System||Electric w/auxiliary pull|
|Transmission||5-speed w/reverse; automatic clutch;|
front- and rear-wheel engine braking
|Drive Train||Yamaha On-Command pushbutton;|
3-way locking differential; 2WD,
4WD, locked 4WD; shaft drive
|Suspension/Front||Independent double wishbone;|
5-way preload adjustment, 5.8-in travel
|Suspension/Rear||Independent double wishbone;|
5-way preload adjustment, 7.6-in travel
|Brakes/Front||Dual hydraulic disc|
|Brake/Rear||Sealed oil bathed, multi disc|
|Tire/Front||AT25 x 8-12 ITP Mud Lite|
|Tire/Rear||AT25 x 10-12 ITP Mud Lite|
|L x W x H||79.4 x 43.9 x 46.7 in|
|Seat Height||35.2 in|
|Turning Radius||126 in|
|Ground Clearance||10.5 in|
|Fuel Capacity||4.0 gal|
|Wet Weight||628 lb|
|Rack Capacity||88 lb Fr./176 lb Rr.|
|Towing Capacity||1102 lb|
|Instrumentation||Speedometer, odometer, fuel gauge|
|Lighting||Dual 30W Krypton multireflector|
headlights & 21W/5W brakelight
|Color||Steel Blue; Hunter Green;|
Realtree AP Camouflage