To the OP . . . it's not definitive, but the gov linkage looks outnof adjustment. Every Tec I have had from that vintage has had the little tab that the linkage attaches to that is held onto the gov arm coming off almost straight, and your's isn't . . . Also, the adjustment loop in on the link atop the carb looks opened more that typical as well . . . gotta wonder if someone was trying to "hot rod" it before you got it . . .
I've mentioned the gov adjustment procedure a couple of times, but don't recall you ever confirming that you have checked it. (I also never see it move, but then again, in the vid, the engine never seems to come up to speed either . . .)
To Phil, the spring from the arm to the carb is the connection you are looking for. Oh these with the throttle on the handlebars, the spring is not on the throttle control proper, but moves to here, and I am pretty certain that this is correct. The throttle moves the arm atop the carb, and the "bendy loop" adjusts how much tension it puts on the gov link to set speed, via the spring. The hard link from the gov to the throttle plate controls the carb . . .
I wish I could get hands-on with this thing . . .
It also seems to be stumbling pretty bad, and never really clears and comes to a stable speed in your vid. Also no memtion of where the throttle control is set when thks was taken, or any attempt to move it.
