This CRANKCASE/OIL PUMP fiche contains the largest amount of spare parts with thirty-nine listed items
Honda SGX50 SKY 1998 (W) SWITZERLAND / MKH on-line schematics - your first port of call when repairing or restoring.
SGX50 SKY 1998 (W) SWITZERLAND / MKH section with twelve Engine, twenty-nine Frame schematic pages.