A MODIFICATION STUDY ON THE FUEL SUPPLY SYSTEM OF MOTORBIKE ENGINE FUELED WITH ETHANOL FUEL

Abstract

The use of fuel-based petroleum on internal combustion engines has contributed to environmental pollutions. The application of ethanol fuel, considered as one of the renewable fuel sources for motorbike engines, is a potential solution for reducing engine exhaust gas emissions, diversifying energy consumption sources and sharing to decrease crisis energy. This paper focuses on modifying the fuel system of a motorbike engine in type carburetor into an electronic fuel injection (EFI) engine fully using ethanol fuel (E100). An electronic control system is used to independently activate the amount of fuel injection corresponding to the change of engine speeds. The results show that the engine fueled with E100 operates stability at idle mode, responds well to the change of engine speed ranges from 1500rpm to 7500rpm, and decreases the concentration of exhaust gas emissions, compared to commercial gasoline fuel. This work is the preliminary step to investigate the effects of E100 on motorbike engine exhaust emissions.