I had a MVVS 26cc ( same thing ) it took me all of 30 mins. to gear up a throttle - I did something similiar to Pe's except I put a short rod from the carb to the clevis in order to make the throttle rod a bit straighter from the servo and for the choke I just fastened a 4/40 rod on it with a ball link and let it hang below cowl ( left spring intacked ). In order to prime I pushed up on the arm closing the choke, turn the prop about 10 turns while holding choke closed, open choke, turned on ignition and within 2 flips it was going. It was actually one of the easiest gas engines that I ever started.

Choke rod is at about 7 o'clock in the pic.