Motor HQ GY6 150CC 4 Stroke LONG Case Engine 157QMJ for Chinese Gas Scooters Moped Scooter NOTE:This engine does not have oil, please be sure to add the oil before using. Please ensure our product is your need. We are not responsible if the buyer order wrong product. 8 PoleDC Single cylinder, 4-stroke, OHC.long case Displacement: 150cc (149.6CC) It fits for most of China Made scooter Go-kart such as Roketa, Taotao. (Please kindly take care the length of the crankcase for your bike.)