Effect of Injector Timing Variations Using a Programmable ECU on Exhaust Gas Emissions of FI MotorcyclesM. Sadly Firmansyah, Riko Saputra, Ilham Febriansyah, Siti Khopipah, Jamaluddin Al Afgani, Wawan Purwanto and Hasan MaksumE3S Web Conf., 622 (2025) 01019DOI: https://doi.org/10.1051/e3sconf/202562201019