2009 Big Bear 400 4×4 IRS
Apr.25, 2009 in
2009 Yamaha ATV Reviews
Big Bear 400 IRS 4×4 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!

| MSRP* | $6,099 (Black Metalic) Available from September 2008 |
| $6,099 (Hunter Green) Available from September 2008 | |
| $6,099 (Steel Blue) Available from September 2008 | |
| $6,449 (Realtree® AP HD® Camouflage) Available from June 2008 | |
| Engine | |
| Type | 386cc, 4-stroke, air-/oil-cooled single; SOHC |
| Bore x Stroke | 83.0mm x 71.5mm |
| Compression Ratio | 8.6:1 |
| Carburetion | 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 |
| Chassis | |
| 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 wet brake |
| Tires/Front | AT25x8-12 ITP Mud Lite |
| Tires/Rear | AT25x10-12 ITP Mud Lite |
| Dimensions | |
| 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 | 904 lb |
| Other | |
| Instrumentation | Speedometer, odometer & fuel gauge |
| Lighting | Dual 30W Krypton multi-reflector headlights & 21/5W brakelight |
| Warranty | 6 Month (Limited Factory Warranty) |











August 21st, 2009 at 3:20 pm
I purchased a big bear 400 IRS 4×4 and it is a great machine! It performs great I couldn’t ask for more.