Originally Posted by
Quikturn
I use a third line to fuel & de-fuel the airplane. I find that while fueling it also floods the engine especially being inverted. Being all cowled in I can’t pinch the line so having a fuel cutoff should really help.
Sure, they'll flood with a 3 line tank. I used quick connect refueling valves early on but got frustrated with them sticking. Most of my Saitos are cowled inverted installs with 3 line tanks, no problem with refueling if the throttle is
completely closed. Adjust the throttle cut to completely close the carb (servo at the point of binding),
turn off the RX with throttle cut engaged and then refuel. It does work, my engines never flood.
Oh, I should add; I use manual fuel pumps and crank them slow, electrics fill the tank too quickly and create too much fuel line pressure.