Thank you for replies. I must admit at first I was a little embarrassed. Manual? Never thought of it. The only new mower I have purchased in my life was in 1973 and the manual was very generic so I didn't have any idea they contained that detail of information. I have downloaded at service manual (only covers the hydro-static drive), the operators manual (very generic) and the interactive manual (same thing only online), and a beautiful residential service manual the includes the torque setting for every bolt on the mower but I still haven't seen the valve settings. I haven't read every page but I did read the engine maintenance sections, the specifications sections and the troubleshooting sections.
Toro's site and manuals insist they make the engine but I believe the "imported" and "other manufacturers statements" on here probably are correct but there isn't an identifying sub label, stamp or anything. It is the engine nobody but Toro wants to claim. I do wish I had 7394's Kawasaki engine as well.
This mower was purchased at Home Depot as a warranty repair almost 2 years ago. Thought it was a great deal and my wife just loves it and loves mowing the yard with it. As much as I hate to discourage that feature the mower has been down more than it has been working. Shame on me for buying an "as is" mower yet paying a $1000 for it. Since all of the repair issues so far have been engine related maybe a new engine with a warranty would be a good investment. The first repair was when the fan came loose, completely destroyed by the time my wife noticed and a bolt got down in the alternator under the flywheel. It still has a broken magnet but has been charging fine. The engine overheated during this break as well. A new fan and the mower mowed the 4 acres 4 times last fall and twice this spring. Battery is good and fully charged, solenoid tests fine and the starter bench tests without issue. Motor turns by hand but has compression. I don't think the compression release is functioning.
Any thoughts? BTW it is a SW5000. Not sure why I put the extra 5 got in the model number.