Well I am totally confused after reading some posts about lubing A-arms u joint, and the like. I have a 2004 Sportsman with "no" Zerk fittings. I want to take good care of my ride, but should I leave the "sealed" fittings alone, or drill and tap Zerks, and install everywhere there is a movement of joints, or should I remove these connections and lube them up, then re-assemble?? This machine has 850 miles, and is in very decent shape mechanically. Any help here is appreciated. :str: