A friend has a stud puller with different size collets which I borrow to remove frozen driveshafts. The collet tightens up on the shaft and the puller itself is just a big slide hammer. I don’t know if a tool like this would work on your folder though.
This Merc 200 had a shaft which would not come out no matter how hard it got pulled on. The fix was cutting a hole in the side with the plasma cutter so I could get the hot wrench in there to cut the shaft. Nothing of any value lost here as the Merc was a donor anyway and only the powerhead was salvageable.
