Hello

I have new DA 50 with very similar problems in QQ yak. I have beat my brains out trying to figure something out. I have spoken to Brian at DA and plan to send the engine back for him to look over. He reminded me that the Internet is terrible place to try to find reliable help. The one thing that I found that changed the behavior was adjusting the pop off valve spring in the carb. I am really suspicious about this being part of the problem. You can at least entertain yourself by searching on !QUOT!pop off pressure!QUOT!. There are not too many posts, but what's there is kind of interesting. You can seach on by screen name to find some of my earlier inquiries.

RJM