I have a samurai with the 1.3L carb engine it was running fine for a half hour. I reved it up and it died. Ever since then it won't idle. It will run if i keep my foot on the gas. But it will die immediately if i lift off the gas pedal. I put a new fuel filter on and check all the vacuum lines and the choke is working fine. I adjusted the idle screw when it was running so its not the idle screw. Anybody have any ideas?

No Ideas. Same thing just happened to me.

Clogged idle jet - may also be known as a slow run jet - or - I don't know which carb you have, there may be a "fuel-cut" or "anti-diesel" solenoid, which when de-energized blocks the feed between the idle jet and the mixture adjustment screw.

What are you referring to as the idle screw?  There are (or should be) two adjustments, one for the idle mixture and a second for the idle speed.

The above is based on knowledge of the Aisin carburettors fitted to the 1.3 Suzuki Swift engines - whatever carb you have should be similar.

Clogged idle jet - may also be known as a slow run jet - or - I don't know which carb you have, there may be a "fuel-cut" or "anti-diesel" solenoid, which when de-energized blocks the feed between the idle jet and the mixture adjustment screw.

What are you referring to as the idle screw?  There are (or should be) two adjustments, one for the idle mixture and a second for the idle speed.

The above is based on knowledge of the Aisin carburettors fitted to the 1.3 Suzuki Swift engines - whatever carb you have should be similar.

Mine has the Hitachi carb and i adjusted the idle speed. Still can't figure out what happened to it. I have gone over everything. I am almost ready to buy a new carb system.

Just a shot in the dark, but maybe the egr valve stuck open?