Why will it not start, just turn over!

What is your question?

I have a 1991 Jeep Wrangler 4cycl. I am having problems getting it to start. The engine does turn over. I change out the fuel pump and bought a new battery. I also checked the sparks plugs and wires, all have spark. I sprayed started fluid in the carburator, it does start but kills. Any ideas what I could check now Do you think its electrical (fuses...relays)? Any info would help. Thanks!