Alright. I have a ttr125. Since I bought it, it's had an engine tick a idle and low lugging rpm's. Up top range rpms it runs great. So I tore the engine down and found that the piston to cylinder clearance is .0045 The manual says to have around .0008-.001 inch or something like that. It also states that .006 inch is the limit. I'm pretty sure the tick is piston slap. I didn't find anything else this far. Bike ran great except for the ticking. It's not the valve adjustment either. That's been checked and rechecked. Thoughts? .0045 too loose? I'm thinking I'm gonna put a 1mm over piston in it. Anyone have a good source for a piston kit? Also, I'm in Birmingham, AL. Anyone know a good local shop to do the bore for me? Or, does anyone have some parts laying around that I could buy?