Hi all, I've been trying to replace the chain and sprockets on my 86 1100. I've taken off the sprocket cover for the front sprocket and removed the little 10mm bolt, but the larger 1 1/4" nut will NOT back off. I've tried impact gun, brute force, etc. but it will not budge. I've got it soaked in WD-40 right now, even though it wasn't rusty at all and tomorrow I'll try a large snipe on a breaker bar. Anything else I should know before I try this tomorrow? Any help/comments are appreciated.