Is It mandated in the U.K. that a 912UL must have a separate fuel return line from carbs to back to the tank? I have an existing return line installed but having just disconnected it to replace the hose, I have discovered the T piece that joins the return pipe to the carb feed lines has been intentionally blocked off! So what is the point in having a return line?


I’m running a back up electric fuel pump at 3-4 psi only. 

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