throttle hanging

[Black93]

About two months ago my throttle began to hang and slowly drop back to idle, it lasted about 4 days and fixed itself. Friday morning it started doing it again, only this time it was staying about 200 rpm higher than normal. I looked at it today. When I rev it by hand you can see the throttle lever return slowly back and stop just short of the low idle screw. You can manually push it back against the screw and the idle would return to normal, but it wouldn't go back by itself. I tapped down on the throttle shaft and it fixed it. Now you can rev it and it will immediately return to idle like normal. What would cause that?

The fuel screw hasn't been touched since I did the gov spring about 4 years ago.

[RCCUMMINS89]

I was having issues like that one time (minus the hitting it part) and I had pinched part of the round return spring in between the 2 black plastic doo hickies when I put it back together.

Otherwise, your internal seal/gasket copper doo hicky may be digging in to the housing?

[Black93]

I checked the spring, no binding there. A very light tap fixed it, so I guess it's getting about time to pull the pump and go through it.