Parts such as the Muffler: Mark, Caution, Muffler, Ex., Muffler, Ex., Screw-washer,5x10 are included in the Nu50 Urban Express 1983 (d) Usa Muffler parts fiche.
In this schematic the "Pkg.,muff.protr. (nas)" is used most often.
The Honda MUFFLER has twenty-four products enlisted in the schematic.