your main jet is plugged
Carburetor float is stuck open.
You probably have to mix it in with the gas.
Bad needle/seat valve on carb.?
fuel pump
There is no carburetor on a 1998 tercel, it's fuel injection. Just go get a can of sea foam mootor tune up in a can and pour into your fuel tank. and that should clean your fuel injector nozels.
Sounds like a dud fuel pump to me. Check all the wires first . Funny though , 87 rx7 had no carburetor...it has electronic fuel injection.
Almost always the fuel pump. Slight chance of the injector, but normally the fuel pump.
What's wrong with them? Are they stuck? (You can try the old trick where you slowly pour transmission fluid into the carburetor while the engine is running, taking care not to stall it. Don't do it near your neighbors, because it creates a hell of a lot of smoke). Are the valves burned? If so, then you'll have to pull the head.
It won't hurt it at all .old mechanic's use to pour it through the carburetor to build the litters up
fuel pump is the first place i would look
Float level to HIGH, Needle and seat not installed correct are damaged. Carburetor not CLEANED correct. Fuel pressure to high. That engine should only have 6 to 9 lbs. of fuel pressure.
A leak. You need to see where it is coming from.