Air inlet tube between motorcycle carburetor and cylinder head

The utility model relates to an air inlet tube between a carburetor and a cylinder head of a motorcycle, which comprises a front flange disc, a back flange, a tube body connected with the front flange and the back flange, and a pipeline bore, wherein a tubular liner is fixed in the pipeline bore, and a flaky blade which promotes the fuel atomization gas mixture to rotate is arranged on the tubular liner. When the atomized fuel enters the tubular liner, the atomized fuel is influenced by the flaky blade to promote the fuel gas mixture to rotate, so that the atomized fuel is mixed once more; thus the stable and uniform quality of the fuel oil atomization can be assured, the fuel gas mixture can be completely burnt, and the oil consumption is reduced. The utility model can reduce the contents of carbon monoxide and hydrocarbon in exhaust emission, and has the function of reducing the polluting emissions.