Wally, start by backing off the idle stop screw & then be sure you have & keep the throttle plates closed. That takes one hand. Now, with the other hand push down on the top of the rod that goes down to the acc. pump diaphram. As you push that down slowly watch the plate with the stud for the metering rod come down & it should come to rest just touching the plate below it. IF it doesn't touch, bend the metering rod arm enough to accomplish this. IF & when it does touch, repeat this test & watch the metering rod eyelet & the stud its hanging on. When you get the acc. pump all the way down, the M.R. eyelet should be 'loose' on its stud. Meaning that it is sitting on its bottom end in its bore & so the eyelet top end is no longer whats holding it. There's enough difference in diameters of the stud & eyelet that it'll wiggle & flop around in there when its loose like it should be.
A great pic you made, sorry I left out the letters here, I don't know how to post & view the pic at the same time. How about you teach me how to put letters in a pic now?
Hope this helps. Doug