Thank you qwertar for this grammatical precision, I am not very good in english because I am french.
Add a separate control for the choke and it will be perfect
the first "throttle" is not a thottle, it's the choke, and it's controlled separately. You close it for a cold start and then open for normal operation, closing it makes the fuel mixture richer.The second plate is the throttle and is controlled by the gas pedal
the usual device to berate cars