Cylinder Head 50Cc Nk102.82Cylinder Head 50cc for Minarelli Horizontal AC, CPI, Keeway E1Replacement 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