you need to disconnect it for a while.
i tried to start my bike the other day and when i pressed the starter switch it just buzzed so i kick started it and it was fine.I went for a long ride and when i got home i switched the engine off and tried to start it again and it just buzzed again showing nothng on the battery level on the screen.I put a multimeter on the battery with the engine off and it red 10 volts when u switch the ignition on it drops to 8 volts and when you press the starter switch it drops to about 4 volts when it's running it shows 15 volts even with the lights on and the battery level on the dash shows full but when you switch it off it wont start again. I tried to kick start it and it took ages to start the screen goes off as theres not enough voltage and it very difficult to start is it the battery as i dont want to buy one if it's something else.