I have a new Tecumseh Enduro 13HP engine that doesnt seem to be getting gas. I took the bowl off the bottom of the carburetor and it was almost dry. Looked like it had a little water in the bowl so I poured it out. When I did, a small black tube and spring fell out. One end of the tube has a rubber ring on it. As best as I could tell, the spring went in the bowl under the tube. Thats the way I put it back together anyway. There is also a large screw on the side of the bowl. I assume this screw is to drain the bowl. I took it off and no gas came out. When I pour gas down the carburetor, the engine will run. However, it will only run for a few seconds. I am getting gas to the carburetor. Any ideas would be appreciated, as I dont have a manual. Thanks.