vertical shaft stuck in bf8a help

[skipdow]

Trying to change the exhaust tube on a Bf8a outboard that was leaking.
In the manual it appears the powerhead has to come off to change it.
not a problem except the vertical shaft WILL NOT seperate from the powerhead so I can lift the powerhead up and change the exhaust tube.
IF I ever get it apart I will of course grease that joint so its easy the next time but what do I do now?
HELP!!
Edit/Delete Message:facepalm:

 

[Grub54891]

Re: vertical shaft stuck in bf8a help

Does it come up just a little bit? if so Hang it upside down,spray pb blaster in there and let it soak. It took time to get stuck,it'll take time to free it up.
Are you shure the shift linkages are disconnected?
Grub