I have an 86 that I just bought and it will not start. It has to be a fuel issue, it will start with starting fluid or a little gas poured in the carbs. The fuel pump is working and gas is getting to the carbs (line from pump removed key turned on). It has started once and ran for about a minute, really smooth, and quit. Is there something that would cause the fuel pump to stop or just dirty carbs? BTW did swap in a known good pump and same story.