Bought a Cub Cadet 123 Hydro at an auction today for $325, not sure if I spent to much or not but it was the cheapest mower sold today. It’s got a deck and what appears to be all the parts on it, new decals, and a blue ribbon service manual. The PTO linkage is unscrewed right behind the starter generator, I think this should be a quick fix is there a certain amount of free I should adjust it for? Also the hydro seems to freewheel down hill a lot. Without a way to slow it down without stopping, is this normal? I need to get new belts for the whole machine does anyone have suggestions on where to get these or pet numbers? Thanks in advance for any help.