There is the fuel block on the top of the 912 engine (for newer model). The rerun line has to come out from the top of the fuel block. So air in the fuel line can escape quickly to the tank through the return line.
the glass filter had very little debris in it, it is between the tank and the pump. the short length of hose joining the two was very rotted inside. i use premium g...
In wing down mode to check the mast welds out on my Tanarg. Found one MAJOR gig. Carb retention spring clamp on the cross manifold vacuum balance lines was pulled down...