fuel in vacuum lines
 

i have searched for info on this gk150 and i cant find definite vacuum and fuel line routing i can get this unit to start if i apply vaccum to the valve on the tank but it also draws up fuel,i belive the diagram is ruptured and these lines are all confused can anyone help it is the roketa gk-01

The typical fuel valves have two lines. The bottom most one is the one that goes to the vaccuum source and the higher one is teh fule line. If you are getting fuel in the bottom one, you are correct. Diaphram is busted.