Bike bucking

can I get one at an auto parts store? What would I look for? how does the wire come out of the cdi module?
It’s screwed in…threaded, pointed…

Unscrew it.

Did you try different carb needle positions to try to remedy this?
I just put my clip on the needle in the carb back in the center notch out of five positions where it was originally and loosened the carb from the manifold and pushed it on as tight as I could. Went for a ride and it didn’t buck on me. I guess leaning the carb and if it was sucking some air at the manifold could of what was causing my problem. Hope it stays that way for a while lol