So, the gear sector and cable you were talking about, are on the opposite end of the governor spring from the governor and carburetor. You are talking about how to set the amount of tension in the governor spring with the speed control lever. Is your concern that you are overspeeding the engine because the gear sector, Item 17, does not apply the choke until the control lever (item 16) has already applied too much tension to the governor spring? Hence when you start to open the choke, the engine over-speeds, but you can then bring the speed down by continuing to move the speed control toward slow?
What operates the choke linkage - is it one of the functions of Item 21 or 22? It sounds as if you have an adjustment/timing problem in the relationship between the control lever (Item 16) and the lever/link that pulls the choke.
