Moose Racing αντλία επιτάχυνσης 46-3003 για YAMAHA YZ 250 F 01-13 / YAMAHA WR 250 F 01-13 Accelerator Pump Rebuild KitImproperly functioning air cut-off valves can stick open or closed causing popping on deceleration or poor running conditionsModels with multiple carburetors include components to re..