Originally Posted by FireRanger
I don't know why it would do this as it should be phsyically impossible. There is no fuel to burn. There is no spark to ignite anything. And it's soaked in seafoam so it certainly isn't hot. If anything it is usually difficult to keep it running if you ingest too much seafoam at once while it's still on. So none the less, no this is not normal.
Dieseling requires fuel, heat, and compression. Seeing as each treatment of seafoam reduced the effects more and more, I would guess that the carbon provided built up heat and fuel with the rotating mass providing the compression. 4th treatment of seafoam and the engine died as soon as the key was turned off.