Carbon cleaning video on a small engine.

[biscuits and gravy]

I'm going to try and post this video of carbon cleaning. Hopefully it will link.

http://youtu.be/WdT4DPFXIkM

Any comments or opinions about this lawnmower carbon cleaning? Would this be applicable on auto or big truck motors.

The first time the guy cleans it makes a small difference, 2nd time a little more, but the 3rd time and different technique was impressive.

I'm just wondering if those methods could be safe for a ISX.