I would not put loctite on the sprocket bolts. They are hard enough getting off to begin with, if they were properly torqued to begin with. Did you tighten them with the allen wrench? You need to be holding the bolt with the allen, and apply torque with a box end wrench on the nut. Also, the bolts are made of aluminum, and the nuts are steel. Corrosion will naturally seal them, if I was real ballsy I would be putting die electric grease on! And last but not least, some are self locking nuts. How is the swingarm?