Good Day All! This summer I bought a 1993 Grasshopper Model 720K serial # 333733 with mower deck 9061. Very nice Mower! But the Kohler engine smokes pretty good. I used it till now and thought I would just rebuild it and be ready for next summer. I have it tore down, cylinder walls are glazed super bad. I mean like glass! And the valve seals are shot. So I know the problems, but I can't find anywhere on the engine as to what HP it is or any model # so I can get parts ordered. You can see on the flywheel cover where a sticker was. I have found some pictures so I know it is probably a CH model of some type. 18 or 20 HP. So that's my problem! How do I find out what this is, so I can get the right parts? THANKS in advance for your Help!!