my battery seems to be not holding a charge or getting drained all the time. i charge it daily to get around on the freeways its fine but some times it die's at stop signs or lights if i dont try to keep reving through the light how do i diagnose this and find out what exactly is the problem some say its the r/r but i dont think so the light get a bit brighter and the tach and speedo stops blinking on and off when i rev it.