JT - your post says move the lever so it comes to within 2mm of the stop at full throttle. Brotherton says 0.5mm unless I am reading it wrong. That is a very big difference. Who is right? Right now I have a 1/4 inch gap which is huge.

Am I measuring correctly? Pull the throttle linkage all the way and watch the lever on the vcv move. The gap with the throttle pulled all the way back is 1/4 inch!!

Once I get the gap right, do I move the nut under the dome CW or CCW?