i did the soapy water test on it, i sealed up the carb with rtv ultra black silicone and blowing through the fuel line while plugging the carb and exhaust with my finger reviled the front bearing leak. And this has been this way straight out of the box with little use because of these problems, i tried to break it in but i never got it to actually run without dying on any of the 5 break in tanks of fuel and i did everything your supposed to