Isx surging or rough idle

[Bryanluster1]

Takes 6-7 revelations to fire. Once started it rough idles the have to bring rpm up to 1000 then hold for 10 sec .Once that's held for 10 sec the rpm raises on it self to 1100rm. Let it idle at 600 after and it's fine.
Sometimes I will get to a stop sign or a light and it'll buck like half the motor isn't there. I'll have to bring it up too 1000 rpm again let it sit and let go of peddle and it's ok again. If I try to run at a green light after I sat on red and it's acting up. It'll puff black smoke.:oh: