I'd check to see if the spark plugs are sparking. Sounds like a bad fuel pump. The hoses underneath the carbs should be plugged, and well sealed. They are there to catch any extra/unused gas, which eventually gets burned.
1999 Ski-Doo Summit 600
1990 Polaris Indy 500
1973 TNT-Restoration Project
1967 Land Rover 88 Series IIA-for haulin'