The Effect of Stroke Up with Ignition Timing Variations on The Programmable CDIon The Engine Performance of The Gl Pro Neotech Motorcycle in 1997. JMEL : Journal of Mechanical Engineering Learning, [S. l.], v. 15, n. 1, p. 23–30, 2026. DOI: 10.15294/jmel.v15.i1.31207. Disponível em: https://journal.unnes.ac.id/journals/jmel/article/view/31207. Acesso em: 13 sep. 2026.