fuel delivery problem

I wouldn't run an electric pump just yet, there's nothing inherently wrong with the mechanical fuel pump set up (that's what I have). (1) You could buy (auto parts store)or make a siphon pump and attach to the fuel line going TO your fuel pump, and pump it until fuel comes through. (2) You could take off the air cleaner and add small amounts of gas directly down the carb, then start it up, and the higher revs of the engine running can help it to pull fuel through better than just cranking it to start. You may need to do that several times to get it started. This can also occur if you ever run completely out of gas in your tank. Remember that gasoline is very flammable, be careful. If no gas comes out BEFORE the fuel pump with (1), then there sounds like a clog in the line from the tank. Oh, yes, take the fuel tank cap off for this; I doubt you have enough vacuum in there (becuase there is a vent) to prevent fuel from getting through, but that did happen to me in my old VW (a tee in the vent line got clogged with dirt).

One other possibility.The mechanical pump sucks fuel from the tank and then pushes it into the carb viathe vacuum it creates.While changing the carb,i imagine all the fuel drained back into the tank.When trying to crank the truck the pump may be creating enough vacuum on those old hoses to close off the empty line.Rather than priming the pump,you may want to try filling the line from the carb to the tank and leave your gas cap on so the pump can pull a vacuum.I dont like the idea of pouring gas down a carb throat with u standing over it.If the truck bacfires,u become an instant Krispy Kritter.BJ

I agree with Cusser, which is why I asked what it did with gas in the carb. The problem is with the fuel pump not drawing up fuel. I know you said you hooked it up right, are you sure? Are you sure the pump is working still?

The "pull a vaccum" idea sounds good. Better than my gas down the throat of a carb, but that is how I have primed many a truck in the past. Mine matter of fact.

sounds like your float is sunk and shutting off the fuel to the bowl

If that's the case he should be able to disconnect the fuel line at the carb inlet and direct that into a jar or bottle, and have someone crank the engine, and the fuel should pump through. This is also a test of fuel pump volume output.

okay im running a stock carb b i have this issue from time to time.(91 b2200 ext cab auto)

it might not be the same for u.

1st. try starting it (dont pump gas)
try again no gas

then pump the gas a couple times

mine always starts if i have that problem

idk whats up with it.im new to the mazda scene.so im learning for myself

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just quick question for you guys out there with the webers, what exactly did you guys do to put the fuel line regulator in? like what kind/brand should i look into and does it matter where you put it down the line? got a weber for last little while but just started to drive it like a daily again so trying it get back into shape

ok .. as stupid as this sounds.. make sure your gas cap is on tight.. if its not.. you cant creat vacum.. i found this out teh hard way.. felt like a tool... just an idea anyhow

thanks but dont think thats it so ya guess i should have explained what all is new to help out better
so in last while i've replaced:
fuel filter
weber carb
rebuilt motor with just over 1000km now
optima yellow top battery
cap & rotor
spark plugs and wires
and i think thats it pretty much off top of my head but ya every once and a while the weber acts up especially if im driving around lots and its warm the truck diesels for a second when i turn it off (sometimes not always) so im either guessing im running rich or a buddy of mine was saying that i need to run a fuel line regulator just want to know if this is true and if so what kind of regulator do i need?