I'm afraid that whatever is disolved is going to go back through the head. Does the IM create enough of a vaccuum in itself to draw the carbon/debris out through the head ports and valve?

 

bump

 

Could u rinse it ? Spray it with carp cleaner and then rinse it and dry it up ? I did that to mine and no problems.

 

i drilled out the plugs, used a wire brush to clean out the ports, and then vacuumed out whatever i could. use shop towels to plug up all the ports but 1, and then vacuum the 1 thats still open. repeat this for each port and you should be able to get of the crud out. but yes, you will have some crud for a second when you start the motor up again, but then it will run so much better.