Yamaha Big Bear 400 4x4 IRS 2009 - Specifications & Review
Article Complete Info
| Articleid | 978729 |
|---|---|
| Category | ATV |
| Make | Yamaha |
| Model | Big Bear 400 4x4 IRS |
| Price | US$ 5799. Prices depend on country, taxes, accessories, etc. |
| Year | 2009 |
Chassis, Suspension, Brakes & Wheels
| Frontbrakes | Double disc |
|---|---|
| Frontsuspension | Independent Double Wishbone |
| Fronttyre | 25/7-AT12 |
| Frontwheeltravel | 127 mm (5.0 inches) |
| Rearbrakes | Double disc |
| Rearsuspension | Independent Double Wishbone |
| Reartyre | 25/10-AT12 |
| Rearwheeltravel | 127 mm (5.0 inches) |
Engine & Transmission
| Borexstroke | 83.0 x 71.5 mm (3.3 x 2.8 inches) |
|---|---|
| Compression | 8.6:1 |
| Coolingsystem | Oil & air |
| Displacement | 386.00 ccm (23.55 cubic inches) |
| Enginedetails | Single cylinder, four-stroke |
| Fuelsystem | Carburettor. Mikuni® 33mm BSR |
| Gearbox | 5-speed |
| Ignition | DC-CDI |
| Transmissiontypefinaldrive | Shaft drive (cardan) |
Other Specifications
| Coloroptions | Black Metalic, Hunter Green, Steel Blue, Realtree® AP HD® Camouflage |
|---|---|
| Comments | Pushbutton; 3-way locking differential; 2WD, 4WD, locked 4WD; shaft drive. |
| Starter | Electric |
Physical Measures & Capacities
| Dryweight | 269.0 kg (593.0 pounds) |
|---|---|
| Fuelcapacity | 15.14 litres (4.00 gallons) |
| Groundclearance | 267 mm (10.5 inches) |
| Overallheight | 1,186 mm (46.7 inches) |
| Overalllength | 2,017 mm (79.4 inches) |
| Overallwidth | 1,115 mm (43.9 inches) |
| Seatheight | 894 mm (35.2 inches) If adjustable, lowest setting. |
About Yamaha Big Bear 400 4x4 IRS 2009
Introducing the 2009 Yamaha Big Bear 400 4x4 IRS
The 2009 Yamaha Big Bear 400 4x4 IRS stands tall in the competitive world of all-terrain vehicles (ATVs), known for its rugged reliability and versatility. With a price tag of approximately $5,799, this powerful machine is designed for enthusiasts who crave adventure on and off the beaten path. Whether you're traversing rocky trails, navigating through mud, or simply enjoying a leisurely ride around the farm, the Big Bear offers unmatched performance and comfort, appealing to both seasoned riders and newcomers alike.
Engine Performance and Riding Characteristics
At the heart of the Big Bear 400 lies a robust single-cylinder, four-stroke engine with a displacement of 386cc, delivering a punchy yet manageable power output. With an 8.6:1 compression ratio, riders will appreciate the smooth acceleration and torque that this model provides, especially when tackling steep inclines or challenging terrains. The 5-speed gearbox, paired with an efficient shaft drive, ensures seamless shifting and reliable power delivery, while the oil and air cooling system keeps the engine running optimally, even under demanding conditions. Coupled with independent double-wishbone suspension both in the front and rear, riders can expect a comfortable ride with a generous 5 inches of travel at each end, allowing for confident handling and stability over rough landscapes.
Key Features and Technology
The 2009 Big Bear 400 is packed with features that enhance its capability and user-friendliness. An electric starter makes getting on the road a breeze, while the three-way locking differential allows riders to switch between 2WD, 4WD, and locked 4WD with just the push of a button—an invaluable feature for navigating tricky terrain. Safety is also a priority, with double disc brakes at both the front and rear providing reliable stopping power. With a ground clearance of 267 mm (10.5 inches) and a fuel capacity of 15.14 liters (4 gallons), this ATV is designed for long-haul adventures, ensuring that you can go farther without frequent stops.
Pros and Cons
Pros:
- Versatile Performance: Excellent off-road handling with adjustable 4WD options for various terrains.
- Comfortable Ride: Independent suspension provides a smooth experience over bumps and obstacles.
- User-Friendly Features: Electric starter and pushbutton differential selection enhance ease of use.
Cons:
- Weight: At 593 pounds, the Big Bear can feel heavy, especially for inexperienced riders.
- Limited Top Speed: While great for trails and rough terrain, it may not satisfy those seeking high-speed thrills.
- Fuel System: The carburetor setup may require more maintenance compared to modern fuel injection systems.
In summary, the 2009 Yamaha Big Bear 400 4x4 IRS is a well-rounded ATV that caters to adventurers looking for a reliable companion on rugged trails. Its blend of power, comfort, and innovative features makes it an attractive choice for anyone ready to explore the great outdoors.