Well, the DA 50 has a new carb kit in my shop that will be installed very soon I hope. That should help but my point is that I can't tune an engine. At all. I can read instructions, use a tachometer and do it by the book and engines won't run when I'm finished with them. This engine might eliminate that for me. That would be a massive boon to those of us that can't tune an engine.e worth a flip.