NEW Carburetor for YAMAHA BIG BEAR 2×4 , 4X4. 4 Stroke. A TOP QUALITY REPLACEMENT CARBURETOR. Give your machine the new power and torque it really deserves, and have more fun with the power at your finger tips. BRAND NEW. 1x Carburetor. 1x Throttle Base Cover. 1x Throttle Base Rubber Gasket. 1x Throttle Cable Clip. 3x Base Cover Screw. Carburetor mostly fits: Yamaha Models. 2007 – 2012 BIG BEAR 400. 2×4 & 4×4.