well just to stay dead in the middle, fire up that cox at about 2.5 turns out and close the needle back about an 1/8 of a turn at a time until its screaming like its scary, then back 1 notch and let it fly, course its only gonna run for 1 minute any way, I have no idea what the baby bee was for ,but I'm sure there was some "class" for it, anyway once you find the magic sound it should be half way between "marginal and a hoot"and at least be able to climb,, but for future reference this is the kind of thing you ask BEFORE you buy the engine..Rog


prolly find an old blackwidow on ebay and can scavange the tank and screws off it or use yours to overhaul it