I think I over tightened the spanner nut and let water into the top bearing......found a little rust during the last inspection on the top bearing. Cleaned it and packed with grease, just need to order a new one. Buddies' 06 had the same problem, but don't think he over tightened the spanner nut, anyone have the same issue? Quick question about that nut. The manual for my 250F (08) says torque spec for that thing was 105 ft/lb. I couldn't get it past 60 ft/lb. 105 seems a bit much too...any thoughts? Maybe a misprint?