Motor won't stay running
I've basically gone through and caught up all the routine maintenance on my '77 cj. Before, it would start right up and run pretty smooth. The changes I've made are new battery, new spark plugs/ wires, rotor and dist. cap, new fuel filter, air filter, oil, and all fluids. Since then, the motor turns over, but instantly dies. If I start it and keep it revved some, it'll run until I take my foot off and then die. I started it today, and stayed on the gas for about 10 minutes and it finally ran by itself.
I haven't gone through the carb because I don't know anything about that, but I'm sure it needs to be gone through by a mechanic. My question is, is there anything I can do myself anywhere else, that I can check myself before I take it to a mechanic?