bought a new carb for it and it will only run for a few seconds

I have a Toro with a 6.5 Tecumseh engine. I bought a new carb for it and it will only run for a few seconds and die. Any ideas?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0