All servo's should return back to its neutral center place when the trigger device is released ,the servo is being jammed
by something causing it to labor!
LOL....it is funky lookin ,as I noticed it too ,it almost looks like a steering servo saver in which ,that maybe his
problem!
If the saver itself isnt properly put together ,or even if someone else had forced a larger screw into the horn ,
it could cause jamming ,lol.....I had done that before...
I think that the little arms on those old style carbs maybe adjustable ,I can't remember .I would have to check mine!
But if so ,then you may can loosen that tiny nut ,an adjust the arm in its proper place ,also ,the arm may have slipped.
Also ,the engine looks gunky ,make sure that the carb...
Check an see if the throttle trim on the transmitter has been turned all the way up ,also ,you can reset the throttle
linkage horn by removing it from the spline an turn it back some!
That also don't look right ,there should be two linkages ,one that goes to the brake ,an one that goes to the...