Those Kirby flywheels have been amongst the hardest ones I have ever had to remove. I used a 3 legged puller on one and I was at the point of being scared to tighten any further when it let out this massive bang and came off the taper.
A bit of penetrene soaking in won't go astray, though a taper being a taper, if it wants to hold to the bitter end it will
