... very popular in China. It may fit most of Chinese 50cc scooters. This engine is first produced by Honda and KYMCO ... ) with Kymco, SYM, Honda, Piaggio engine. PGO ATV XL rider 50, 90, 110. Kymco ATV Mongoose 50, 70, 90.50/90/100cc ... 2, Suzuki Katana 50 2t, SYM DD 50. Many Chinese 50cc scooter like QINGQI,QJMOTOR, LIFAN,ZONGSHEN, XINGYUE, WANGYE,JONGWAY, etc ...