139QMB GY6 50cc High Performance Engine. (Major Axis = 42cm, Short Case). This engine is used in scooters from Kymco, Diamo, Schwinn, Q Link Geely, Roketa, Tank, Avanti, Meitian, Strada Verucci Pep boys and most 50cc four stroke scooters plus many others made in China. This engine package comes with carburetor, intake manifold, starter, shifter, air filter, Cdi and Coil. Compression Ratio: 10.5:1.The item "139QMB 50CC 4 STROKE GY6 SCOOTER ENGINE MOTOR AUTO CARB SHORT CASE I EN27" is in sale since Saturday, September 20, 2008. This item is in the category "eBay Motors\Parts & Accessories\ATV, Side-by-Side & UTV Parts & Accessories\Engines & Components". The seller is "inu521" and is located in Ontario, California. This item can be shipped worldwide.