alright I just shut it down. It ran for 50 minutes at about 1/4 throddle and still has 1/4 tank of fuel left. that's a 16oz tank not bad compared to my 50cc katana with a 24oz tank. I can only go for about 20 minutes. granted I am flying way over 1/4 throddle 95% of the time. I give this motor another chance.. Maybe now that I have figured out how to start this engine it will get easyer.