How does one remove the chain sprocket on a Stihl 020APV?

[P10]

Stihl 020APV
I've unscrewed the centrifugal clutch and removed the plate beneath it. The housing for the clutch with the chain sprocket beneath will slide about 1/8" on the crankshaft. How does one remove the chain sprocket? Brute force?

 

[Grande Dog]

Howdy,
There must be a burr or something holding it up because after the clutch is off, the sprocket should just slide off. I would turn and pull at the same time. No tool, or puller should be needed.
Regards
Gregg