Those numbers are not correct. When running it should be at 14 volts or more. Your regulator took a dump. Replace it they are about 20 bucks1999 Honda 300 Fourtrax is what I'm working on. Bought me a new digital meter in town this morning so these readings should be accurate. After Advance Auto put a full charge on my battery yesterday I only started it up to make sure it would run. After sitting until 11:30 am this morning I took these readings. 11.71 volts before starting 4wheeler. 12.73 volts after starting 4wheeler while running with no lights on. 12.46 volts with 4wheeler running with lights on. 12.10 volts after this test and not running. Are these close to normal readings?