[QUOTE="Preston"] Do yours get tighter or looser? [/QUOTE] One of my CG125s valves got tighter, the other looser. After 5000 miles, they settled down. Now they don't tend change much at all. The Bandit had one or two valves that closed up a bit, after I changed the cams, now those haven't seemed to have changed much either. Saying that, both bikes are screw and lock nut and both get looser rather than tighten up.