Have any of you had problems starting your DA50? Recently mine has become a pain to start at times. It will pop once when choked then start and die on about the 5 flip unchoked. It will then start and die several times before it stays running. Sometimes hard to start after a flight and refueling. The high needle is at about 1 3/4 the low is at 1 1/2. Once its running, the engine performs really well.