GeneralGenerally, the engines are designed to run on a gasoline-oil mixture of 50:1. This mixture supplies proper engine lubrication.If the engine has been assembled for oil injection lubrication, the carburetors are supplied with pure gasoline.The integrated oil pump will deliver the exact amount of oil required for engine lubrication.Make sure that adequate amount of oil is in the oil tank before putting engine into service.CarburetorFor more details see latest Operators and InstallationManual.Fuel pumpFor more details see latest Operators and InstallationManual.