Check out this link.

http://forums.turbobricks.com/showthread.php?t=35053

Putting water into a cylinder scares me. But a lot of people swear by this seafoam method. Has anyone here ever done this? How did it work? What are your thoughts?

 

I've never done it the way it was described on turbobricks but I have used seafoam with great results. A few days after you do this process remove a spark plug and look in the cylinder, things will be CLEAN!! You're not going to hurt anything by putting small amounts of water into the engine while it's running, all it does is help to loosen the carbon that is coating the top of the piston and the valves, then the seafoam will do the rest. Either way you should come out fine. I really need to add this to the list of things to do next Saturday, thanks for reminding me.

 

Just read the can man. That is all you have to do.