Hi
The Hand Throttle and Choke are operated by slide cable from the dash. These pictures show how they connect to the carb
For higher resolution photos go to
http://canadianmilitarypattern.com/R...mera%20045.jpg
and
http://canadianmilitarypattern.com/R...mera%20046.jpg
More engine photos from my HUP project
http://canadianmilitarypattern.com/H...INE%20WORK.htm
Glad you found the source of the fuel leak, the slow priming is one of the reasons I have gone over to electric fuel pumps. Was very interested to hear that you are using some high tech tools to tune the engine. You will have to tell us more about this as your project progresses.
Cheers Phil