here's a picture of my original setup. With the linkage attached this way I had problems getting a reliable idle so I moved the attachment point to the lower part of the arm where the red dot is. I also cut off the idle screw b/c I like to be able to kill the motor with my throttle cut off on the radio. I have not ever figured out a way to attach to the choke, I just close it by hand to prime the engine, then crank with no choke on.
james