06 Mastiff with new battery and rebuilt starter last year. Friday it started dieing on me when I shut it off after riding for a while. It will start a few times but wont start after a couple of hours or so. If I leave it on a trickle charger overnight it starts right up. Should I have 6 volts at the small green wire on the solenoid with the key off or is that causing the battery to drain? Also why wouldn't the battery be charging while I'm riding?