I have a GMS .47 and I cannot seem to get needle valve set I have flown plane 15 times engine leans out in are and dies. I have ran 3 tanks of fuel through it I bought from tower hobbies. I have tried all kinds of plugs fuel. It will run fine on the ground but not in the air it takes like 3 turns to richen it up enough to fly it a little longer and then it seems to over heat and die do you think it is the hole in the needle valve not beeing aligned. Please help me with this.