*Inner Diameter (intake): 19mm
*Outer Diameter (air filter mount): 40mm
*Electric Choke (plug style): 2-pin, male plug
*Main Jet Size: #80
*Idle Jet Size: #35
GY6 50CC carburetor for 4 stroke QMB139 engine.

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Carburetor (19mm Intake) for GY6 50cc 4-stroke QMB139 engines. 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.