Question about adjusting mixture - 560SEL

[hbofinger]

Preamble: So my mechanic has determined that my engine is running lean, because of bad plenum seals. He has sprayed starter fluid into the back of the intake manifold and the car started acting up. That should not happen if there is not a leak, I take him by his word.

The problem: So to get the car to drive again somewhat reasonably so I can take it to my shop to replace the plenum seals, he enriched the mixture. Problem is when I tried to start the car the next day, it would not. My attempts to fix the mixture, as per his instructions, have failed miserably, and I am afraid I now have the CIS mixture plate adjustment screw way out of whack.

So I go this idea: Instead of me running back and forth between the front of the car and the ignition switch, doing 1/8th turns on the screw, I could have my wife run the starter while I turn the adjustment screw until we get her fired up.

Does this seem like a reasonable plan?

Any comments and suggestions welcome...