With these GS450ST 1981 (X) USA (E03) partsfiches you have access to one thousand five hundred ten spares.
To discover exactly which parts you require use the on-line schematic exploded diagram - it will even give you some idea of where and how to fit those new parts.
The largest parts list ( CARBURETOR ) contains seventy products for this GS450ST 1981 (X) USA (E03).