I have an 86 B2000 which has a carb and O2 sensor called a feedback carb
system.  As far as I know a carb system does not use the electric fuel pump
mounted inside the fuel tank but uses a mechanical fuel pump driven off of
the camshaft at the back of the cylinder head on the passenger side.  Have
you verified that the carb is actually out of gas and not receiving any from
the fuel pump?

I had my truck just die as if someone turned off the ignition a few years
ago.  A quick check and I found I had no spark.  The ignition module in the
distributor that Mazda calls the igniter had burned out.

If your vehicle does have an electric fuel pump mounted inside the tank its
a job best done with as little fuel in the tank as possible.  If you live in
a cold climate where they use lots of salt on the roads in the winter be
prepared to break off most of the screws that hold the pump/fuel gauge
adaptor into the tank leaving you with fewer screws to hold it together
unless you drill them out.

Good luck,
Lugnut

--
"They that can give up essential liberty to obtain a little temporary safety
deserve neither liberty nor safety"

Benjamin Franklin
<KenPaulie@noaddress.com> wrote in message
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--
"They that can give up essential liberty to obtain a little temporary safety
deserve neither liberty nor safety"

Benjamin Franklin