The recent automotive technology development encourages producer to develop EFI (Electronic Fuel Injection) system on its respective latest release. Principally, the difference between EFI and carburetor lies on the method in which fuel being injected into combustion chamber. This research aims at identifying work principle and troubleshooting occurred on electronic control system of motorcycle Honda Beat PGM-FI. Evaluation on fuel injection system of EFI is conducted by the methods of flashing the MIL light and measuring voltage, resistance, continuity using digital multitester tools and HIDS of each component. The measurement result is then being compared with specification of each fuel system specified by the pre-determined service manual book. Based on the evaluation result conducted on each component of EFI system, it is found that the fuel pump pressure is 290 (40 psi), the injector resistance is 11,52 volt, and TPS (Throttle Position sensor) resistance is 4,65 volt whoch respectively belong to normal condition. This, it can be concluded that fuel injection system of EFI in this research is stated to be in a good condition since it is still ranging in tolerance limit on standard specification.