QuadBoss 07-09 Yamaha YFM250 Big Bear Air Cut-Off Valve Kit - 420588

Improperly functioning air cut-off valves can stick open or closed, causing poor running conditions and popping during deceleration. Air Cut-Off Valve Kit includes O-rings, diaphragm, spring and screws necessary to rebuild the air cut-off valve circuit.

• Models with multiple carburetors include components to repair all carburetors