The way I was taught to check the adjustment was to have the cable adjusted to move the wheel on the pump as the RPM's increased.

dull/dumb but some info

Yes it all works in in unison--is that a word-- throttle lifts slide & pump cable pulls cable wheel & as it all gets further around the pump goes in & out more. I like the suzuki ones where ya can't see anything except cable adjusting so don't loose sleep over it & never fail. I'll have to go wash my mouth out after saying that lol.

This thread is basically the same as mine, so I'll post some pics here for others who may want the same info

The following video also covers this topic very well

unlike in your picture the adjusting plate cover is like a washer, my adjusting plate cover that is on top of the adjusting plate was hiding what I needed to see. So once I removed it I understood what was supposed to happen. Thanks for posting the picture to the thread as you can now see the parts everything is talking about.