Yamaha Big Bear 400 4x4 IRS 2010 - Specifications & Review

Introducing the 2010 Yamaha Big Bear 400 4x4 IRS, a rugged all-terrain vehicle designed to conquer the toughest trails while providing the comfort and reliability Yamaha is renowned for. With a price tag of approximately $6,649, the Big Bear 400 stands as a solid option in the competitive ATV market, appealing to both seasoned enthusiasts and newcomers alike. Its robust design, coupled with Yamaha’s reputation for durability and performance, makes this model a standout choice for those who crave adventure and exploration in the great outdoors.

At the heart of the Big Bear lies a powerful 421cc single-cylinder, four-stroke engine, meticulously engineered to deliver a perfect balance of power and efficiency. With a compression ratio of 8.6:1, this engine produces responsive torque that makes climbing hills and navigating rough terrain feel effortless. The Mikuni® 33mm BSR carburetor ensures a smooth fuel delivery, while the oil and air cooling system keeps the engine running cool even during challenging rides. Paired with a 5-speed gearbox, the Big Bear offers a commendable blend of low-end grunt and top-end speed, allowing riders to confidently tackle everything from muddy trails to rocky paths with ease.

The 2010 Big Bear 400 is not just about raw power; it boasts a range of impressive features designed to enhance the riding experience. The independent double wishbone suspension system, with 147 mm of front travel and 193 mm of rear travel, provides exceptional shock absorption and stability, making it an excellent choice for any terrain. Coupled with double disc brakes at both ends, riders can expect reliable stopping power even in the most demanding conditions. With a ground clearance of 267 mm and a comfortable seat height of 894 mm, this ATV is designed for both performance and comfort, allowing riders to navigate obstacles effortlessly while enjoying a smooth ride.

PROs:

1. Powerful Engine Performance: The 421cc single-cylinder engine delivers robust torque and acceleration, ideal for off-road adventures.
2. Advanced Suspension System: The independent double wishbone suspension provides excellent shock absorption and stability over rough terrain.
3. Versatile Riding Capability: With a 4x4 drivetrain and impressive ground clearance, the Big Bear can handle a variety of challenging environments.

CONs:

1. Weight: At 284.9 kg (628.0 pounds), the Big Bear can feel heavy, especially for inexperienced riders when maneuvering in tight spaces.
2. Fuel Capacity: With a fuel tank of only 15.14 liters (4.00 gallons), longer rides may necessitate more frequent refueling stops.
3. Limited Modern Features: Compared to newer models, the 2010 Big Bear lacks some of the advanced technology and electronic aids that enhance safety and performance.

The Yamaha Big Bear 400 4x4 IRS is a reliable companion for those ready to take on nature's challenges, blending power, comfort, and technology in one robust package. Whether you’re trail riding, hunting, or just exploring off the beaten path, this ATV promises to deliver an exhilarating experience.