The fifteen Gsx550ef 1986 (g) (e01 E02 E04 E06 E17 E18 E21 E22 E24 E25 E34) Cylinder component parts are all listed in this schematic.
The most reasonably priced component used on the Gsx550ef 1986 (g) (e01 E02 E04 E06 E17 E18 E21 E22 E24 E25 E34) Cylinder is the Gasket 8.2x14x1 (nas).
Parts such as the Cylinder: Washer(10x15x1.5), Bolt,stud, Pad,cylinder Head, Bolt,oil Pipe are included in the Gsx550ef 1986 (g) (e01 E02 E04 E06 E17 E18 E21 E22 E24 E25 E34) Cylinder parts fiche.