I was just abought to trash the engine, for some reason I tipped the mower on it's side (oil side) and when I placed it on it's normal state I noticed I had compression when I pulled it, at this point the engine started ran for a few seconds, Next I removed the carb bowl cleaned out the junk and cleaned the jet. The mower started and ran for a few seconds, next time I pulled it no compression. I checked the oil level it was half on the dip stick I topped the oil up. Still no compression. So what gives here???????? I hate to throw out a working engine. Is there and oil pump on this engine that may be connected to the cam shaft that may be working as a low oil shut off??????? I believe the engine is a Suzuki

Change out your spark plug. Have seen similar issues with Kawasaki engines. Would run great until you put it under load (engage the clutch) and then it would stall. Seems like it's way too simple but I've cleaned carb's, reset valve lash, and checked flywheel keys on machoines that just wanted a fresh plug. Good Luck P.S. Make sure the new plug is gapped correctly.

First thing to check is for a weak cylinder. Alternately, remove 1 spark plug wire and ground it. See how it runs. IF you have a bad cylinder, remove the valve cover on that side and examine the valve train.

The schematic only shows 2 Black wires to the seat switch,. Tying them together WILL prevent spark. Look at the schematic in your owners manual. Anything that grounds the M terminal of the key switch kills spark. IF you don;t have an OM, click the link. Here is a link that might be useful: Owners Manual