The bike idles only with the choke on and with any type of throttle except for 2/8 it will instantly bog down and try to shut off. It also idles up and down without me doing anything. I removed the big rubber air intake so I could see if the Diaphragm in the carb was stuck, but it’s not. If I cover the air side of the carb with my hand, I can almost give the bike all the throttle I want, but then it will suck my hand real hard and squirt fuel backwards. I have cleaned the carb and replaced two of the Jets main and the short one. I have not touched the fuel air mixture screw because I didn’t want to drill out the cork. I also have not touched the float height tang leaving it not bent.