If your starter is turning, and the engine is not. This is it. This OEM overrunning clutch is an exact replacement for the stock starter on a CFMoto 500cc 625cc 800cc engine. CF Moto 500cc ATV listed part number is 0180-091200 with old part number listed as CF188-091200. • Main shaft Diameter: 63.2mm • Outer Diameter: 116mm You can download CF188 Parts List and send us the parts code with QTY to Inquiry Mortch Motor parts supported the Brands of BAOTIAN, BASHAN, BENZHOU, CFMOTOR, CHARMING, DAYANG, DINLI, FUXIN, GEELY, GILERA, HANGLONG, HAOJIN, HAOJUE, HISUN, HONGZHOU, HUATIAN, JIAJUE, JIANSHE, JINLUN, JMSTAR, JONWAY, KAITONG, KEEWAY, KINROAD, KYMCO, LIFAN, LINGBEN, LINGTIAN, LINHAI, LINTEX, LONCIN, LONGJIA, MAWI, MEIDUO, MOTORRO, PIAGGIO, QINGQI, RHON, RIEJU, SACHS, SHINERAY, SKYGO, SUKIDA, TAOTAO, VESPA, VONROAD, WANGYE, WONJAN, XINGYUE, XINLING, XINTIAN, YIBEN, YINGANG, ZHONGYU, ZNEN, ZONGSHEN, etc. Note: Please make sure this scooter parts fits your particular scooter model. Many scooters have the same name but use different parts depending on the year of manufacture.