Sheeeesh.......there has got to be a way to prevent air bubbles in the fuel lines on these smaller glow fuel motor's. I lost my showtime last summer due to the motor cutting out and dying right above a 100' oak tree and then again yesterday , i just barely saved my Funtana 100X. I'm running a saito 150 in the funtana , and also have one of the little saito 125's , and if you get down to close to a 1/4 or 1/3 tank and your doing some pretty harsh 3D type stuff , the clunk will suck an air bubble and kill the engine. All i did yesterday was tear the landing gear off nice and clean (easy fix) , but is there anything out there i can use that will help on preventing air bubbles getting into my lines? Or at least cut back on the amonut? I have the tank wrapped around with some 1/2" memory silicone memory foam , and the clunk is moving around pretty good ( fuel line is still pretty soft). I can only get about 7-8 minute flights , and anything more than that , i risk getting a bubble in the line. The 150 died on me at about 20' up yesterday in a hover , and barely had the speed to land it on the deadstick without wiping the plane out.

any advice?