In this study, the effect of the metal/acid balance of Pt/mordenite catalysts on the activity, product distribution, and main reaction pathways during the hydroconversion of 2-methylnaphthalene (2-MN) was analyzed. The hydroconversion study was performed on Pt/mordenite catalysts having different metal/acid ratios in a batch reactor at 4.13 MPa (cold charge) and 523-573 K. The catalysts were characterized by XRD, Al-27 NMR spectroscopy, FTIR spectroscopy of adsorbed pyridine, and TEM. The results indicate that, by using a bifunctional catalyst consisting of a well-crystallized mordenite whose acid function consists mainly of Bronsted acidity and with a strong hydrogenating function such as dispersed platinum, it is possible to promote the hydroconversion of 2-MN through a complex reaction scheme consisting of isomerization, hydrogenation, ring contraction, ring opening, and cracking. These reactions produce high-value hydrocarbons such as alkyl cycloparaffins, paraffins, and isoparaffins, which decrease the aromatic character of the feed and open a potential route to improve the quality of the polyaromatic-rich fractions.