if its a fueling valve it doesnt need a third line. the valve is located on the supply line. the direction on this line is important.
ORIGINAL: hifli
I know this is an old thread, but can someone walk me through a three line connection for an OS FX 46, with a Dubro fueling valve and a cowled engine. I haven't installed the tank yet so I thought I might as well get it right. The engine is in a Tower Hobbies Voyager and is inverted.