Yamaha venture charging problem

I have a 2003 Yamaha venture that is not charging.  I removed the battery and checked it out -- will full charge and reads good under load.  Dealership said was probably the rectifier --- replaced it, and is still not charging i.e. at 11 volts when running.  Before just replacing the stator I wanted to check it out.  The stator leads ohm out as to the yamaha manual indicating it is good, but the manual does not provide what the AC output from each lead should be.   I am getting 24 volts with one lead but only 1 volt and 2 volts in the other two leads.  I asked the local dealer service tech about the AC output and his reply was I would have to bring it in for him to check it out. Do I have a bad stator or another problem?