Please stand next to the dyno?

[twobjshelbys]

Originally Posted by Trueoo7

Not that you were doing this at the time but this reminds me of an article I read that had the same outcome and pointed to real life cases where this had happened in the past. It said that the labels on small equipment advising you to never refill any engine with fuel while it is running needs to be heeded. It stated that if the fumes from the gas and/or diesel make it to the intake, it can cause the engine to rev higher and out of control. Trying to shut it down via a key or switch does not always stop it in time and the engine could explode similar to this. As you know, you need to stand beside it in order to accomplish this so that could easily be deadly.

Engine had been filled with gas from before (with stabil). The area was well ventilated with the garage door open. No ether starter fluid had been used. Just went free running. Tecumseh engine.