| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust emission mechanism of a motorcycle, preventing any increase in vehicle body width to secure a special space for an exhaust emission sensor, and preventing the exhaust emission sensor from being largely exposed to the side of the vehicle body. SOLUTION: This exhaust emission mechanism includes: an upper exhaust pipe 10 and a lower exhaust pipe 11 connected to the respective cylinders of an engine and disposed on one side of a vehicle body; an upper muffler 12 and a lower muffler 13 connected to the exhaust pipes 10, 11; a first connecting pipe communicating the upper exhaust pipe 10 with the lower exhaust pipe 11; and an exhaust emission sensor 17 disposed in the first connecting pipe 16. The first connecting pipe 16 is shaped to be projected and curved toward the vehicle body side, and the exhaust emission sensor 17 is fitted to the curved part of the first connecting pipe 16 pointing in the longitudinal direction in a position not overlapping the upper exhaust pipe 10 in a plan view. COPYRIGHT: (C)2005,JPO&NCIPI |
