Suction air muffler for a motorcycle

In a motorcycle including an internal combustion engine and having a forward direction of travel, the improvement of an air intake muffler assembly for the carburetor of said motorcycle internal combustion engine, said air intake muffler assembly comprising means including an air cleaner defining an inlet to said carburetor extending along an air path having a given air direction, a muffler casing defining a muffler chamber surrounding said carburetor air inlet through which all air entering said inlet passes, means defining the air intake port to said casing, said air intake port being arranged to open in a direction other than said forward direction of travel of said motorcycle, said air intake port thereby opening to always receive air therethrough during travel of said motorcycle from a direction other than the forward direction of travel of said motorcycle, pipe means extending from said casing intake port into said muffler chamber, said pipe means being arranged so that substantially all air entering said chamber is supplied through said pipe means, said pipe means defining a path along which air travels therethrough, said muffler assembly being constructed so that all air entering said carburetor air inlet passes along an air path which includes said air intake port of said casing, said pipe means and said muffler chamber, said assembly further including means for maintaining said air path between said air intake port and said carburetor air inlet with a directional component extending transversally to said given direction of said air inlet to said carburetor thereby to maintain a non-linear air path between said casing intake port and said carburetor air inlet to muffle noise created by said incoming air.