How do you "fog" an MPI engine?

RadioguyJ

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I have always had carburated engines, never a fuel injected one. The boat we are considering buying has twin 7.4 MPI's. With a carb, you simply spray the fogging oil into the intake until the engine chokes out and dies.

How do you fog an MPI?

I am hoping to use the boat a couple times before winter, if we are able to put a deal together. I will be re-winterizing the engines myself. Just want to make sure I do it correctly. Thanks everyone!
 
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