Naraku 47mm Cylinder Head for 50cc 2-Stroke AD50 Franco Morini Based Scooters COMPATIBILITY: Aprilia – Habana 50 2T Atala – Byte AT 10 50 2T, Hacker AT 12-Racing 50 2T Benelli – 491 ST Morini 50 2T, Naked Morini 50 2T, Pepe-LX Dal 50 2T (2007), Quattronovex 50 2T >’08 Derbi – Vamos 50 2T HSC – ZZ Sepia 50 2T Hyosung – Prima 50 2T, SB50 Super Cab Italjet – Formula 50 2T, Torpedo 50 2T, Velocifero 50 2T Malaguti – Crosser CR1 50 2T Siam – SCross 50 2T Suzuki – Address 50 2T, AJ-ZZ Sepia 50 2T, AP 50 2T, Katana 50 2T, Magic 50 2T, Zilion 50 2T TGB – R50X 50 2T, Laser R50 UM – X-Speed 50 2T Other Similar Models Aluminum cylinder head with large combustion chamber suitable for Morini AC 70cc cylinder kit by NARAKU (Part Number: NK102.30), also suitable for other 70cc cylinders with 47mm bore. The larger combustion chamber will solve the electric start issues due to the higher compression on the bore kits. **