No - no yanking. Even in a poor Wearever. Yanking might occasionally work but can break the feed.
Remove the body of the pen. Remove the sac (if it is there).
Fit the nib into a properly sized hole. Some people use a knock out block like this:

Then use a blant nail to knock the feed out from the back of the section.
Most come out easily - if they are stubborn do not use excessive force.
It migh tbe stuck due to dried ink. Wet and clean and then try again.
Get Frank Dubiel's book if you want to do repairs - it describes all these much better.