Muffler and PTO clutch are not included but they are available for sale. Working hour meter displays “312.3″ hours. On 11/1, engine starts but runs rough and puts out grey smoke. I ran a compression test and got 190 and 200 psi from the cylinders. Spark plugs had oily residue when removed. I removed the carburetor bowl and there was no dirt in the bowl – just clean gas. Air filter looks fairly new and clean. Pics are of the actual engine for sale. No telling how old the gas is. See the short video of the engine starting and shutting down. Message for fast and friendly assistance or suggestions to try if not time-consuming. We are dismantlers, not seasoned mechanics. Price is firm as we can part it out for more in short order. Message me for additional info. I’ll make sure you get everything you need. I part out Cub Cadet and many other brands of lawn and garden tractors and zero turn mowers. If you don’t see a related part you need feel free to message and I’ll let you know if I still have it and at what bargain price.