10.40.060 - Mufflers Required.
It is unlawful for any person to operate a motorcycle, motor powered bicycle, or any motor powered vehicle within the city, whether on public or private property, unless such motorcycle, motor powered bicycle, or motor powered vehicle is at all times equipped and installed with an exhaust muffler or mufflers in good working order and in continuous operation so as to prevent excessive or unusual noise, and it shall further be unlawful for any person to operate any motor vehicle within the city, whether on public or private property, when such motorcycle, motor powered bicycle, or motor powered vehicle is equipped with a cutout, by-pass, or any other muffler elimination appliance or device, and such equipment or device is in use, except during a sporting event duly authorized by the city.
(Prior Code § 9.42.010)