Patent ID: 6334501
Filing Date: 2002-01-01
Classification: B60K,B60Y,F01N

Abstract:
An exhaust system for a motorcycle in which a fore-and-aft V-type engine having front and rear cylinders arranged in a V-angled to each other along the front-to-rear direction of the vehicle body is mounted, wherein the first exhaust line from the front cylinder includes a first exhaust pipe which is extended from the front side of the front cylinder, creating a forward exhaust arrangement while the second exhaust line from the rear cylinder includes a second exhaust pipe which is extended from the rear side of the rear cylinder, creating a backward exhaust arrangement, and the first and second exhaust pipes originating from the front and rear cylinders are connected to the respective front-end entrance ports of the first and second mufflers which are arranged below and above on one side, either right or left, in the rear-half of the vehicle in cylindrical shape, so as to be parallel to each other, while the first and second exhaust lines are connected to each other by a communicating pipe,characterized in that the first and second mufflers are arranged so that the second muffler is shifted behind with respect to the first muffler while the communicating pipe is arranged so that one end thereof is joined to the peripheral surface of the muffler cylinder corresponding to the first expansion chamber of the first muffler and the other end is connected in parallel with the second exhaust pipe to the front-end entrance port of the second muffler corresponding to the first expansion chamber of the second muffler.