I am ready to get this engine off of the ground this weekend when I solve this issue. I have got everything set up in the cowl (so I thought). I tried fueling up my airplane tonight and am getting fuel dripping from the carb at about a 1/2 full tank. what setup are you using in you're in cowl engine? I have the saito 100 engine, have all lines running correctly, carb is closed all the way when fueling, I installed the Hanager 9 fueling app. ( threaded tube with plug ) along with a tee inline to the carb. I know they sell a switchable valve for this but I am asking what else is out there or have I set this cowl rigging up incorrectly? or is that what I have to get without having to find the carb line and pinch it off.....Thanks Jeff.

I use a three line setup. The Saito carb on a T with the fill line will allow fuel to go through it even when fully closed. If you use this setup, you will have to pinch off the line from the T to the carb when fueling up.

A three line setup in the tank will resolve this problem. Either that or run the T lines so you can get them outside the cowling for fueling. If you can get them out without having to run excessive line, unplug the carb line from the T, and fill through that fitting, then replug the carb to the T.

Lynn

I use the three line system also. Heard about too many problems using fueling valves. I keep hemostats in the flight box to pinch off the carb line. You just have to make it accessable.
Edwin

I also use three line system on all setups. I dont use a T tho....I just plug the fueling line with a hexbolt, and stuff it in til the fattened fuel line is tight in the hole I cut in the cowl.
d