I agree with the above posting. go for a short drive, find a lake or river, and give that piece of junk a good heave- ho! Then get yourself a good engine. The above suggestions were all fine; my preference for sport flying is the thunder tiger, because it is cheap, it is VERY reliable, and you can basically take it out of the box, strap it onto your plane, and after running about a tank full of fuel through it on a run up stand, you can break them in in the air. I have had these engines start on the first flip right out of the box.