The effect of magnetic rotor variations on motorcycle 4-step injection modification on engine performance as a potential application of bioethanol. BIS Energy and Engineering, [S. l.], v. 2, p. V225036, 2025. DOI: 10.31603/biseeng.359. Disponível em: https://unimma.press/conference/index.php/biseeng/article/view/359. Acesso em: 7 jun. 2025.