In this schematic the "Rivet, Blind(3lc)" is used most often.
Parts such as the Exhaust: Fiber, Silencer, Exhaust, Washer(6a1), O-ring(1lx) are included in the Tz125 1994 4jt1 North America 244jt-100e1 Exhaust parts fiche.
The component with the lowest price in the EXHAUST schematic is the Washer(6a1).