2010 Big Bear 400

FEATURES

ENGINE
The Big Bear is powered by a 386cc, 4-Stroke Single, Air/Oil Cooled with fan assist, and is one of Yamaha's most reliable ATV engines.

TORQUE
Maximum torque occurs at a low 5,500 rpm for heavy duty use.

TRANSMISSION
5-speed semi-automatic with reverse, designed for extreme conditions where water and mud can't be avoided.

ON-COMMAND 4WD
Push-button servo-controlled "On-Command" system allows you to switch between 2WD, limited-slip 4WD and fully locked differential 4WD - all with the simple push of a dash mounted button. Real 4-wheel drive when you need it. With Diff-lock engaged, there's no need to wait for one wheel to spin. You have traction to all 4 wheels, immediately. This puts you in total control... you decide when you need 4 wheel drive... the machine doesn't decide for you.

IRS
Independent Rear Suspension (IRS) for improved ground clearance and ride comfort.

LIGHTS
Dual 30-watt Krypton multi-reflector sealed headlights with replaceable bulbs provide excellent lighting, prevents water penetration, and simplifies maintenance and reduces cost. 

FLOORBOARDS
Steel reinforced plastic floorboards with raised integrated serrated foot pegs and extra-wide evacuation holes for excellent traction regardless of conditions.

TIRES
25-inch ITP Mud Lites with more aggressive tire tread pattern for greater traction in extreme conditions

FENDER EXTENSIONS
Improve mud and splash protection.

ADDITIONAL FEATURES

• Lower front bumper plastic skid plates. 45 degree attack angle allows unit to slide over taller obstacles without getting hung-up. Plastic design resists dents and corrosion.
• Rear sway bar added for limited chassis roll and greater terrainability.
• Spin-on oil filter simplifies oil changes.
• Plastic under frame skid plate helps protect frame from damage and allows units to slide over rocks and logs.
• 25-inch ITP Mud Lites with more aggressive tire tread patter for greater traction
• Sealed marine-style electrical connectors.
• Large-capacity racks, front and rear with crinkle coat paint process for superior corrosion resistance.
• Electric starting with recoil backup (electric starter will work in any gear)
• Reusable foam air filter for easy maintenance and maximum power.
• Limited slip front differential. The front differential is centrally located with equal-length driveshafts to each weel, providing four-wheel drive performance with easy steering.
• Deeply padded wide seat and specially designed low-effort steering for long day comfort.  

TECHNICAL DETAILS

ENGINE

CHASSIS

CRITICAL DATA