Exhaust pipe structure of internal combustion engine

摘要

There are provided an engine (11) in which a cylinder disposed substantially horizontally is projectingly provided on a vehicle body frame; an exhaust pipe (19) through which a combustion gas is discharged from a combustion chamber in a cylinder head in the engine (11); and a catalyst (21A) disposed in the middle of the exhaust pipe (19). A catalyst holding part holding (22) an end portion of the catalyst (21A) is formed to be divided by a plane passing through a center axis of the exhaust pipe (19).