short video here:
Throttle Body Cleaning - YouTube
Enjoy.

A lot simpler than most of us thought.

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1985 300D 198K sold
1982 300D 202K
1989 300E 125K
1992 940T

"If you dont have time to do it safely, you dont have time to do it"

"The democracy will cease to exist when you take away from those who are willing to work and give to those who would not."

I would simply spray the cleaner with the throttle body in place. The cleaner is flammable and like brake cleaner, it will evaporate. So there isn't any concern about it sitting in the intake runners.

__________________
1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member

The guy in the video isn't talking about the cleaner, he's talking about adding the gunk in the TB to the gunk in the manifold.

While that TB is easy enough to get out, on some (like the M112/113) it's not; my preference is to open the TB, spray cleaner on a clean rag and use it to wipe out the TB, including the edges of the plate. That is really fast, since the TB stays in place, and you certainly don't get any gunk washing into the manifold.

That said, most intakes are very disgusting, so the odds are that the stuff rinsed in from cleaning the TB is de minimis.