Dick, if you have not already done so, look at page 194 of your KN7000 manual for Midi Presets. Go to page 2 of the Midi Presets display and choose Sound Module. Click OK. That will set up the KN7000 as the master with Right 1 set for midi channel 1, Right 2 to midi channel 2 and Left to midi channel 3. That's all you should have to do at the KN7000.

I will need to see the manual for the Hammond sound module to see what you need to do there. It needs to be set up to receive on midi channel 1 if you want it to play the Right 1 notes. It also needs to be set for an external clock.

You already have the audio out of the Hammond connected OK because you can hear the demos.