Perfect pics thanks Mattax - I actually tried to adjust that screw so there would be zero play against right where that red arrow is pointing to the arm.. I cant loosen it enough to make it have zero play.. I set up my phone and took a video of the carb when i was having the first aforementioned issue with vacuum and caught the adjustment we're discussing and caught that movement.. (ok cant upload a video clip so i'll take two screen shots.. one at rest, one with throttle - see below)
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Whats not obvious is that the arm for the accelerator pump DOES move.. just not a lot.. and no amount of loosening will make it really change anything visually on that movement.. seems to always make TOO much contact
