starting problems zx6r-electrical

Hi, I have a 1998 zx6r and recently it has been getting flat batteries and therefore not starting. If I jump start it off another battery it always starts. Has anyone else had the same problem?
I have tried using a new battery and it still has the problem. I have narrowed it down to the charging system as it is not pumping out 13+volts when running (used multimeter)-its reading 11volts when engine running.
So its either alternator/stator or voltage regulator, can anybody assist me in where these are located and if possible how to get to them and test each... Any help would be good
Trent
I have tried using a new battery and it still has the problem. I have narrowed it down to the charging system as it is not pumping out 13+volts when running (used multimeter)-its reading 11volts when engine running.
So its either alternator/stator or voltage regulator, can anybody assist me in where these are located and if possible how to get to them and test each... Any help would be good
Trent