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2011 Yamaha Big Bear 400 4x4 IRS
2011 Yamaha Big Bear 400 4×4 IRS

2011 Yamaha Big Bear 400 4x4 IRS
2011 Yamaha Big Bear 400 4×4 IRS

2011 Yamaha Big Bear 400 4x4 IRS
2011 Yamaha Big Bear 400 4×4 IRS

2011 Yamaha Big Bear 400 4x4 IRS
2011 Yamaha Big Bear 400 4×4 IRS

2011 Yamaha Big Bear 400 4x4 IRS
2011 Yamaha Big Bear 400 4×4 IRS

– 2011 Yamaha Big Bear 400 4×4 IRS

2011 Yamaha Big Bear 400 4×4 IRS

Reliable and rugged with ITP MudLite tires, IRS, On Command 4WD and a rear sealed wet brake.

Ready to work, eagar to play.

The 2011 Yamaha Big Bear 400 4×4 IRS features a mid-size chassis, torquey, powerful engine, 5 speed automatic-clutch gearbox with reverse, independent rear suspension, On-command 2WD/4WD with Diff Lock, sealed wet brake, integrated floorboards, large comfortable seat and more.

The Big Bear 400 is the ultimate workhorse.

With four-wheel independent suspension for high ground clearance, Diff Lock for full power when you need it, a sealed wet brake for sure stops in nasty conditions and ITP Mud Lite tires for superior traction – this near bulletproof machine was built to get the job done and then some. Super-low first and reverse gears in the five-speed gearbox make the most of this bear’s ultra-durable, torquey 400-class engine. Full loorboards keep the mud where it belongs, rugged wrinkle-finish steel racks pack plenty of gear and a front grab bar add protection and style.


Independent Rear Suspension

ITP Mud Lite Tires

Sealed Rear Wet Brake



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 maximum ground clearance, excellent terrainability and all-day comfort.
” Class-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.
” Constant-mesh five-speed transmission with automatic clutch, reverse and super-low stump-pulling first 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 floorboards and high ground clearance keep the rider high and as dry as possible.
” Pushbutton electric starting in any gear is backed up by an auxiliary recoil starter.
” Huge 25×8-12 front and 25×10-12 rear ITP® Mud Lite tires further boost ground clearance while providing great handling and traction.

” 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.
” Tool-free, easy-access 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 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 day comfort.
” 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.

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 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 rider comfort.
” Large front and rear fenders with inner splash guards offer excellent mud and splash protection.
” 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.
” 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 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.
” Assembled in Newnan, GA, U.S.A.




2011 Yamaha Big Bear 400 4×4 IRS – USA Specifications
MSRP* $6,949 (Realtree AP Camo) Available from June 2010
$6,599 (Hunter Green) Available from July 2010
$6,599 (Steel Blue) Available from July 2010

Type 386cc, 4-stroke, air-/oil-cooled single; SOHC

Bore x Stroke 83.0mm x 71.5mm

Compression Ratio 8.6:1

Fuel Delivery Mikuni® 33mm BSR

Ignition DC-CDI

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 discs

Brakes/Rear Sealed oil bathed, multi disc

Tires/Front AT25 x 8-12 ITP® Mud Lite

Tires/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

Wheelbase 48.4 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 & 21/5W brakelight

Warranty 6 Month (Limited Factory Warranty)



2011 Yamaha Big Bear 400 4×4 IRS – Canadian Specifications
Canadian MSRP* $8,899 CDN

Engine 4-Stroke, SOHC, Single, Air/Oil Cooler w/ Fan
Displacement 386 cc
Bore and Stroke 83mm x 71.5mm
Compression Ratio 8.6 : 1
Carburetion Mikuni 33mm BSR
Ignition DC – CDI
Starting Electric w/ Auxiliary Pull
Lubrication wet sump
Transmission 5-Speed, Automatic Clutch w/ Reverse
Final Drive On-command push button 2WD / 4WD / 4WD diff. lock, shaft drive
Suspension (Front) Independent Double Wishbone, w/ 5-way Preload Adjustment.
Suspension (Rear) Independent Double Wishbone, w/ 5-way Preload Adjustment.
Brakes (Front) Dual Hydraulic Disc
Brakes (Rear) Fully Sealed , Oil Bath, Multi Disc
Tires (Front) ITP Mud Lite 25×8-12
Tires (Rear) ITP Mud Lite 25×10-12
Length 2016 mm (79.4 in)
Width 1116 mm (43.9 in)
Height 1187 mm (46.7 in)
Wheelbase 1230 mm (48.4 in)
Ground Clearance 267mm(10.5 in)
Seat Height 895 mm (35.2 in)
Dry Weight 265 kg (593.0 lb)
Wet Weight 285 kg (628 lb) – ready to ride full of fuel and oil
Fuel Capacity 15 litres
Towing Capacity 410 kg (904 lb)
Colour(s) Dark Green
Dark Blue

Specifications, appearance, and price of product are subject to change without notice.

* MSRP does not include freight, PDI (Pre Delivery Inspection), pre-rigging (boats), or taxes. Dealer may sell for less.