The EY20 gasoline engine is an air-cooled, single-cylinder, four-stroke engine designed for reliable performance. With a displacement of 183 cc and a bore and stroke of 56 mm and 38 mm respectively, it produces 5 horsepower. The engine features a compression ratio of 8.5:1 and utilizes a transistorized coil ignition (T.C.I) system for efficient ignition. It supports both recoil and key starting systems and operates at rated speeds of 3000 rpm and 3600 rpm. The fuel tank has a capacity of 3.6 liters. The engine has a net weight of 11 kg and a gross weight of 13 kg, making it a compact and versatile choice for various applications.