A couple of weeks ago the DLE engine in my Top Flight Mustang quit. I was able to land gear up on the grass field so minimal damage. Upon investigation, the throttle shaft broke in the middle at the location of the screw hole. Throttle plate and screw were caught in the reed valve so not ingested into engine. It seems no one in the US or Asia has a DLE carb in stock. Tower says Late July. It is real late July and no carbs. So I found an old carb in my misc parts box. Took it apart and put all the DLE carb parts in. Diafram, pump, cover, metering valve and spring. This carb has a smaller venturi about 9.7 mm the DLE 11.1 I think. To my surprise, it started and with just a little tuning, ran good. Not sure if I lost any top end rpm because of smaller venturi but will find out. Also I don't know the part number of the comparable Walbro carb. I think the old carb I used came on a RCGF 20cc.