One evening while riding my 2004 Speed Four, I noticed the reading on odometer started flashing, bike seemed to lack acceleration then at a red light while stalling, it just shut off and the ignition wont turn on. I had to bump start, bring it back home, charge the battery. Once battery was at 12.5V I was able to ride it. I come back to the bike the next day and the same symptoms as I ride it. Odo readings flashing, bike seemed like it will die but this time I managed to ride it back home. Now it wont start. I checked the battery reads at 11.5V now and wont start. The headlights etc. seem to work. Have any of you come across this issue? Would you know if this seems like a bad battery issue or is it something wrong with the charging system/stator?