I am going to look at this kohler motor that was in a cub cadet. He said he bought it to put on a go cart and never got around to it and it’s just sitting taking up space in the garage. I’m needing a replacement engine for the kohler series 1 17 hp in a 782. I have two questions. 1) Are these engines reliable? 2) if you look at the flywheel screen and see the aluminum piece in the center, is that the coupling to attach it to the driveshaft?