The layout structural null head flexible pipe of the secondary air control valve for the exhaust air in

摘要

Leaning forward cylinder axis to the body frame which has the mainframe from the head pipe extending to the rear going down, the engine which is arranged in the lower part of the aforementioned mainframe is done, the suspension in the motorcycle where and the suction system which includes the carburetor are arranged in the upper part of the aforementioned engine, the secondary air control valve where the aforementioned engine (E) controls the supply of the secondary air for the exhaust to the exhaust port (48), the sel-motor where the aforementioned engine (E) is installed on top (50) and the aforementioned carburetor (38) between, the aforementioned engine (E) and the mainframe (13) is arranged between. Because of this, utilizing the space between the mainframe and the engine effectively, it arranges the secondary air control valve, the reduction of the secondary air supply line becomes possible.