Nova flier I have a electric fuel pump I pump the tank two seconds after closing off vent line to pump the tank all the way up and build up pressure in it with fuel instead of waiting for tank pressure to build it up. Joe try to add a small bevel to the outside of the brass tubing using a small Philip head screw driver it will keep the tubing from sliding off. I haven't had any problems with that way. And I have a YS 140 L that has tons of pressure as well.