cylinder head Naraku 50cc for Minarelli horizontal AC, CPI, Keeway E1

Replacement cylinder head from Naraku suitable for air-cooled horizontal Minarelli 50cc cylinders and CPI, Keeway scooters with 1E40QMB / 1PE40QMB engines (Minarelli clone).
The cylinder head fits on the original cylinder and replica 50cc cylinder kits from other manufacturers. Attention on Chinese engines: This cylinder head uses a short thread spark plug e.g.: (NGK Type H means short thread). e.g.: BR8HSA, BR8HS