See TBJ, even little gif dude has a pint of Guinness in hand.
TC, I'm going to take the intake, heatshield, battery, couple of other things... out and bag + tape up all the sensitive stuff before applying any harsh soap or emulsifying chemical agents to my KJs tender bits.
You guys drink way more different kinds of beer than I do....haha
Anyway Ian, I spray simple green on everything under the hood and spray it off with no drama. It works good even when I had mud splattered everywhere. The only thing that I do is stuff a rag in the intake and I think you don't really even need to do that. I just do it in the driveway with the garden hose. Just my experience.
Dave