Kit includes all necessary parts to rebuild the air cut off valve circuit. motorcycle models with multiple carburetors include components to repair all carburetors. Kit includes necessary O-rings, diaphragm, spring, screws. Improperly functioning air cut off valves can stick open closed causing popping on deceleration conditions.
Fits: > Yamaha FZ1 01-05, FZS 1000 S 01-05