... very popular in China. It may fit most of Chinese 50cc scooters. This engine is first produced by Honda and KYMCO ... 2, Suzuki Katana 50 2t, SYM DD 50. Many Chinese 50cc scooter like QINGQI,QJMOTOR, LIFAN,ZONGSHEN, XINGYUE, WANGYE,JONGWAY, etc ...