Title: Motorcycle engine exhaust system

Abstract: A motor cycle includes a frame, a front and rear wheel, and an engine mounted to the frame which has at least two exhaust pipes. A muffler is mounted to the frame beneath the engine, and both exhaust pipes discharge into the muffler. At least one tailpipe exhausts from the muffler. The silencing volume of the muffler can enable a shorter-than-usual tailpipe to be used, which need not interfere with access to the rear wheel axle.

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Inventors: Nomura, Kazuhiko (Iwata, JP)
Ichikawa, Satoru (Hamamatsu, JP)

Application Number: 06/343020
Filing Date: 1982-01-26
Publication_date: 1983-12-27
Assignee: YAMAHA MOTOR CO LTD (JP)

Primary Class(es): 180/219 181/238, 180/226, 181/228, 181/272, 180/89.200, 180/2
Other Classes: F01N1/08; F01N7/08; F02B61/02; F02B75/22; F02B75/02; F02B75/18; F02B61/00; F02B75/00; B62D61/02; F01N7/08; F01N1/08
Primary Examiner: Tarcza, Thomas H.
Assistant Examiner:
Attorney: Mon, Donald D.

Parent Case Data:

This is a continuation of application Ser. No. 78,697, filed Sept. 25, 1979, now abandoned.