Section Trans 305.39 - Exhaust system(1) Every motorcycle shall be equipped with a functioning exhaust system that is maintained in proper working condition so as to reduce engine noise. The exhaust system shall be maintained in conformity with this section and s. 347.39, Stats.(2) Every exhaust system shall be maintained free of leaks from the engine exhaust ports through the piping and muffler to the end of the exhaust system. A protective shield or insulated section shall be provided for any portion of the exhaust system that extends above and to the rear of the foot pegs or rests.Wis. Admin. Code Department of Transportation Trans 305.39
Cr. Register, February, 1996, No. 482, eff. 3-1-96.