I am having trouble with the fuel to the motor. I'm gunna try my best to explain. When I go to start the truck I am getting a lot of air in the line. I hold my finger over the exhaust until the fuel line is fuel from the tank to the carb. As soon as i take my finger off the exhaust the fuel getts sucked back into the tank( amost all). So then i tryed pulling the exhaust line the goes to the top of the fuel tank, to try to prime it and when i blow in that the fuel line fills and then it flows back into the tank when im done!!! WT* I checked the lines for cracks or slits and there is none. I pulled the floating brass thing in the tank thinking maybe there was something wrong with that. Didnt work. Now when i blow there the exhaust line to prime I can hear a bubbling noise coming from the carb threw the air filter.

Please if you have an idea please let me know. Thanks

Have you solved this problem yet?
If so what did you find?
If not.. go step by step thru your system to check for leaks and areas where the lines might be kinked.

ya i figured it out. I took it to my lhs and we played with it for about a half hour and and it quit doing it. between my nephew and i we prolly ran 9-10 tanks threw it that day.

What was it?