Yamaha Motif Rack Set Up

I’m sorry I forgot to mention that I am using Cubase 6.5. As I said I used to have this Motif set up as a midi device. I think on my last upgrade or maybe when I changes out the PC, I lost the template. I cannot get my Yamaha Motif Rack to access it’s sound banks in my Cubase project. Previously I had an file that added the devise to my midi devices. But know I’m stuck.
Thanks
Richie