The most reasonably priced component used on the Civic 1200 Eb1 1973 3d Mt W/mt (kq Kp Kd Kt Ku Ke Kg Kf Kw Ks) Starter Motor Components is the Pan Screw 4x12.
Some items from this specific schematic: Brush (+), Magnetic Switch, Washer,plain,8mm, Cover C, Dust.
On this parts fiche the Brush Spring is the most specified component.