Joking aside, there' are even instructins on the can to put the stuff into the vacuum stream to "steam clean" your combustion chamber! I've thought about how to do this on our bikes. I wonder if one could connect a tube to ones vacuum port, use a valve to "regulate" the flow then dip the other end of the tube in the can of Seafoam. Start he engine, let 'er get warm, then crack the valve open ever so slightly so that Seafoam is drawn up the tube. Don't let TOO MUCH go up the tube lest ye hydrolock a cylinder and bend a rod! Do this outside as I hear it smokes like all get out!
Yes, Seafoam is amazing! I bet it would make a GREAT dessert topping... were it not LEATHAL to consume!