Advice

Hi everyone! I have been working on my MOC lego locomotive. Everything went perfectly, but things got problematic when I moved to motors. I had plenty of lego Power Functions XL motors (unfortunately not original ones), but they had just a little of torque. Among 7 motors, only 1 worked well. I had another moc locomotive and with just 1 xl motor she managed to pull 7 kilograms. The locomotive on the picture had 1:1 gear system, while the older one (with 1 motor) had 20:16. Loco on the picture...