I am having issues with engine not running right. Keeps citting out. I have taken carb off and cleaned all out inc jets. It ran fine for half hour then ciut out. I took float bowl off and it had a small amount of oil in it. I cleaned it again and the same thing happened. When I spray carb cleaner into air intake, it revs and runs fine for 5 seconds then dies. What could be causing oil to get into float bowl? The oil level is correct. The engine is 2016 but only done about 10 hours. Please help.