Motorcycle Repair: 79 honda cb400 t, honda cb 400, honda cb400

Question
I bought my 1979 Honda CB 400 T a few years ago and when I got it home I started it up and drove around the house, and as soon as I came to a stop a connecting rod broke.
Thankfully the bike came with  few extra parts and I was able to replace it. I put the motor back together popped it back in the bike and tried to start it.....nothing, put it away in my parents shed. It sat there for a few years.
I have just now got back to it, I pulled the motor out, opened it up, and cleaned everything really good and fixed a few things i missed the first time. I put it back in, hooked everything up and was shocked when the first I hit the kick start and it fired up, but then quickly died. I got all excited and pushed it over to my car and hooked up the jumper cables
and hit the start button, again it turned over and fired up, and quickly died.
After some fiddling i managed to get it to stay running, but it still died, even with the throttle wide open. I cleaned the carbs out, same thing. Adjusted the carbs according To my manual, no change. Adjusted the timing, getting it to run for a few second is the best I can get out of it, and when i start it up and give it some gas it starts revving up. I'm going to make a video and post it to youtube.
I just don't know what to do from here.
Any Ideas?

Answer
T.J.

Did you clean out the fuel tank and petcock filter screen?

http://www.cmsnl.com/honda-cb400tii-1979-usa_model7219/partslist/F++1401.html

Can I presume that you put the camshaft in correctly, that the valves are adjusted, that you have about 175 psi compression, the carb jets and emulsion tubes are all clean and clear and the vent for the gas cap is open?

The air cut diaphragms on the sides of the carb bodies must have no pinholes or tears in the rubber. Make sure the rubber manifolds are not cracked/torn where the carbs insert.

http://www.cmsnl.com/honda-cb400tii-1979-usa_model7219/partslist/E++19.html

Make sure that you have the correct primary and secondary main jets in the correct places. In some of the Hondas of that era, the jets were physically the same size and easily swapped into the wrong locations.

Bill Silver