R Rc painter Well-Known Member Supporting Member Joined Jan 7, 2006 Messages 504 Aug 7, 2014 #1 Am new to gas. Is a pressure line necessary for the tank on a gas thunderboat ?.
larcor69 Well-Known Member Supporting Member Joined Apr 13, 2006 Messages 1,933 Aug 8, 2014 #3 gas engines have a diaphragm carb, which acts as a fuel pump so no need to pressurize the fuel tank