EASYTIGER
Back a few years ago I would have agreed with you about OS being a better engine. But now aday's with insta peal liners and other quality problems I'm not sure they are better quality than K&B. And I have never never seen ANY ABC engine take a couple of gallons of fuel to break in. The longest I have seen is my ThunderTiger .46 which took almost half a gallon before the black crud stopped coming out of the engine. OK Ok come to think of it it took almost that much on an ASP 90 two stroke, but then it sucks twice as much fuel. You getting the ABC and ringed models mixed up are you not? Even OS ringed engines will take a couple of gallons to break in!