Hey guys, so first time posting here. So I have some engine knowledge mostly cars though. But my riding mower had stopped running. It would spin bit not fully crank. So I adjusted the valves changed the magneto and spark plug since it was not sparking and behold it started. But it was running rough. I took it for a test drive and of itself engage the blades it will almost kill the engine. I put it on high and vr than it did kill the engine. I just ordered a new carb as it was cheap and figured why not but was wondering if anyone had some thoughts. It doesn't have a fuel pump.