Battery won't charge over 12.5 volts
Hi everyone, I have an '03 Road Star Midnight 1600, and the bike wont charge the battery over 12.5 volts. It needs about 12.9 volts to spin the crankshaft fast enough for it to start, so I have to use an external charger to charge it to full(about 13.4 volts) before I ride, then hope I don't have to stop more than once or twice before coming home ( about 200-250 mile trip). The light is on and bright, and even when it won't start, once it's running the alternator sustains it. Is there an easy fix? Is it just the regulator perhaps? anyone know how to check? Thanks.
Last edited by Dustin Martinez; 05-01-2018 at 06:48 PM.