Took my almost 2hrs to remove 3 spark plugs , they were all but seized up.

don't be running a tap down in there! should have sprayed pb blaster in each one before starting to remove them after turning bout 1/8",then working back and forth slowly..since you got em out,spray some pb blaster or wd-40 in one and start it by hand with a piece of fuel hose cut to correct length.don't start em with an extension or ratchet.