PERFORMANCE ANALYSIS OF THE HONDA BEAT ESP INJECTOR ASSY ON COMBUSTION EFFICIENCY IN A 110 CC ENGINE

Abstract

This study aims to evaluate the performance of the injector assembly on the Honda Beat eSP and its effect on combustion efficiency in a 110 cc engine. A common problem that occurs in fuel injection motorcycles is inaccurate fuel supply due to changes in the atomization pattern, which impacts gasoline consumption and emission characteristics. The methods used consist of testing the spray flow rate, fog pattern, fuel pressure, and measuring exhaust emissions as a direct indicator of the combustion process. Tests were conducted on standard injector conditions and on injectors that have experienced a certain service life to see the differences. The results showed that unstable atomization and decreased injector flow rate caused an increase in fuel consumption of more than 5% and an increase in HC levels in emissions. Conversely, injectors with optimal atomization patterns produced a more even air-fuel mixture and increased combustion efficiency. These findings confirm that injector performance plays a crucial role in maintaining engine performance and fuel consumption efficiency in small-capacity motorcycles.