When I replaced the swingarm bearings on my 85' 200x, we had one heck of a time removing the pivot bolt. Very large sledge
, one can off a propane torch, and lots of being pi$$ed off.... We finnally had to cut the pivot bolt with a saw and get a new one. I hope yours comes off more easily, but I think the saw thing is a common way to remove a frozed up pivot bolt. I've heard people say to remove and grease those things frequently to avoid this. I hope this helps you out.
Sam from Florida
1985 BIGRED $ 200X