GY6 50cc Moped Scooter Engine Motor. Extension Long Case, Use 729 Belt, Air cooled, CVT 4 Stroke, auto clutch, electric start. Product Description 50cc 4-stroke GY6 Scooter Moped Engine Auto Electric Start Engine Model: 308-999031 Color:Black Cover Ignition Method: CDI Engine Type: Single Cylinder, 4-Stroke, 2-Valve Lubrication: Pressure/splash Cooling System: Air Cooled Fuel Supply: Carburetor Atomization Horsepower: 2.82HP/6500Rpm (2.1KW/6500Rpm) Starter: Electric/Kick starter Max.Torque: 3.1N.m/5500rpm Transmission: CVT Min.Stable Idle Speed: 1450-1750r/min Clutch: Shoe-type Automatic Centrifugal Dry Clutch Min.Fuel Consumption: 9.65oz/HP.h (367g/Kw.h) Cylinder Diameter: 1.54″ (39mm) Carburetor Model: PD18J Piston Stroke: 1.63″ (41.5mm) Carburetor Type: Horizontal Vacuum Carburetor Bore Stroke: 1.54″ x 1.63 ” (39mm x 41.5mm) Spark Plug Model: A7TC Cylinder Working Volume: 0.01 Gallon (49.5ml) Fuel No.>=87# Compression Ratio: 10.5:1 Lubrication Model: SF15W/40-SE Ignition Type: CFW Lubrication Capacity: 0.20 Gallon (900ml) GY6 Engine, 50cc Extension Long Case, Use 729 Belt, Air cooled, CVT 4 Stroke, auto clutch, electric start. It also fits for most China made 50cc Single Shock Scooters. Compatible Vehicles: 50cc GY6 Single Shock Scooters 50cc China made Single Shock Scooters PLEASE NOTE: Please measure the physical size to be sure you get the correct one. Great Price. Fast Shipping. Good Service. Why our customers choose us: 1. Fast Delivery 2. Know you’re getting the right parts. 3. Great prices. 4. Great value.