I put a used engine in my tractor the old engine had a celoniod on the bottom of carb and the used one did not , the engine runs but it runs like its choked out , I bought a new carb #492915 and installed it , to the same resolts, if I crimp off the fuel line it runs great and then runs out. It used to have a fuel pump but the used engine is gravity feed , so I by passed that and the celeniod . How to adjust carb or is this getting too much gas please help my grass is out of control, thaks JIM R

What tractor did you put it on ,and does it have a fuel pump on it.