The lowest price component in this Carburetor ('82) parts-list fiche is the Screw, Pan, 3x12.
Some items from this specific schematic: Valve Set,throt., Spg,washer3mm, Jet,main #55, Jet,main,#52.
twenty-nine components are listed in the schematic for this Ct70 Trail 70 1982 (c) Usa Carburetor ('82) .