Naraku 17.5mm carburetor suitable for various Kymco, Honda and SYM scooters. The carburetor is also recommended for un-tuned engines. It is much better tuned than the original 12mm or 14mm carburetor, which is used in the European versions of the scooters with E2 emission standard. In non-European countries, the scooters are delivered from the factory with a carburetor with a diameter of 17.5mm and thus have a better engine performance. The carburetor is prepared for the original E-Choke, the manual choke lever from Dellorto can also be mounted. The original air filter box can still be used. Depending on the scooter model it may be necessary to shorten the original throttle cable. The E-Choke is not included in the delivery. Main nozzle 90 (6mm) Secondary nozzle 35 Hole spacing intake manifold: 42mm Air filter connection distance: 35mmAI-translation