Hello, what is the easiest way to prime new fuel lines and new carbs? You can blow into the return line and hear the gas moving, I also do get a little spitting out. Not seeing anything coming out after I try to crank it over. There are no air leaks that I can hear, if I take off the gas cap you can hear the air release. Seen some forums of guys putting gas into the carbs to help get it the fuel to start moving down the lines. Just wanted to know what's the best way to go about this.