I'm using the Emx as a master and the 909 as a slave and I want them to be synced at the same tempo, how do I do this!?

Right now, I'm getting the same tempo but whenever I change channel on the 909, I get the same keyboard "play" on it as I have on the Emx "synth 1", and I only want them to start synced and play at the same bpm...most annoying!

I guess you have to change something in the Emx midi settings but after reading the manual, I'm still confused!
Any help is appreciated!