Took a trip for four months and coming home the 87 Raider won't run. Poured a little gas in the intake and it runs on that, so there's spark and compression. Gas doesn't seem to show up past the fuel pump.

Now sometimes it fires up and runs four or five seconds. Is there some obvious cause for this, easy to check? I have a condition that causes carburetors to never work right after I touch them, so it has to be simple.