Finally got my '85 QT50 moved to the Cities after I bought it about 15 years ago. It has been sitting for about 3 years, but after a little work its up and running again. The only problem is that the throttle is getting stuck all the way open. I've taken a look at the whole throttle system and everything seems to be working (throttle cable, junction box, carb section, etc) but it doesn't want to return after throttled back. I'm just OK, not amazing, when it comes to mechanics, so I'm not sure where to go from here. What are some common problems or hints that may help.
PS what is actually suppose to return the throttle after being pulled back?