QuadBoss, QuadBoss Air Cut-Off Valve Kit for Yamaha YFM400 and YFM660R Models Motor City Barrels providing superior durability and cornering

providing superior durability and cornering stability at high speeds

Easy to install with included mounting hardware

Limited stock available — add Siluca Meletes to your collection today

to be really honest to that

Produced by Dan's wife

QuadBoss, QuadBoss Air Cut-Off Valve Kit for Yamaha YFM400 and YFM660R Models Motor City Barrels providing superior durability and corneringThe QuadBoss Air Cut Off Valve Kit is designed to restore optimal performance in Yamaha YFM400 Big Bear and YFM660R Raptor models from 2000 to 2005. Over time, improperly functioning air cut off valves can stick open or closed, leading to poor engine running conditions and popping sounds during deceleration. This comprehensive rebuild kit includes all necessary components such as O rings, diaphragm, spring, and screws to repair the air cut off valve