Robust Naraku sport cylinder kit (cast iron) with 70cc for scooter with air-cooled Piaggio engineThe Naraku piston is provided with a molybdenum coating, which protects the cylinder and piston during the run-in periodThis coating dissolves completely after a few hours of operationThe cylinder is suitable for series and sports exhaust systemsIf the original carburettor remains installed, the carburettor jetting should be increased by about 7-10% (guide value)It is recommended to use a 17.5-19mm sports carburettorDelivery includes gasket set, the original cylinder head can be used, but a 70cc cylinder head is recommended (sold separately)Scope of delivery as shown on the product photo