First, I use the regulated side of my air line and set to 40psi so I don't over pressure the carb in a bad way. I have a valve, a tee, and hose fitting, and a gauge on the valve. Air line connects to the tee, valve on top of the tee, hose connection to the carb. When I open the valve I can watch the air pressure on the gauge and hear the pop. I always have one hand free which I like. I will take a picture later and post it. Pretty simple I got all brass fittings from Amazon.