Sounds to me that your vehicle is off time. Check the timing on it. If the timing is off it will backfire through the carb and also if it is cross wired (firing order wrong) it will backfire through the carb.
It sounds like the engine may have jumped time. Check the engine timing. Fuel splash back can ignite, so use caution.
It is where the carburetor controls the flow of air and fuel into the engine allowing it start up when the engine is cold. It does this automatically instead of having to do it yourself.
Yes. to solve the problem strangle the fuel pipe to cut flow of fuel and persistently start the engine it should solve the problem.
It would depend on the vehicle. If the vehicle has a carburetor, the pumping action primes the engine with fuel to help start the engine. If the vehicle has fuel injection, pumping is not required.
Diagnosis: Engine Won't Start or Run Check related link below
NO!!!!! if you do then the engine can start up in flames or even blow up!!!!!
Clean out the carburetor with gas, the reason it wont keep running is its not getting enough gas through the carburetor.
engine has bad intake valve,
If the engine runs well after it's warmed up, you just need to adjust the choke to make the engine start and run better when it's cold.
Whats wrong when an 86 ford aerostar keeps trying to start after the engine is running?
If you mean why is an engine difficult to start after it has been sitting for a while, there are various reasons. There may be a carburetor problem or some other sort of gas line problem.
It could have a leaky carburetor or injector that's causing the engine to flood.