Help! If any of you here have read my recent threads, I was struggling to get a 1983 honda cb450sc running. Well, long story short it runs, but now I'm taking some time and going through some other systems/cleaning the dust and dirt. I started up at the front brake and noticed that the caliper was seized a little. I got it torn apart easily and noticed after I put the parts in an ultrasonic cleaner that the exposed/seized end (about 1/8 of an inch) of the pistons have quite a bit of rust, not dirt Is this removable without compromising the tolerance of the piston against the seals of the caliper? I feel like finding new pistons may be a pain since honda does not make them anymore. Also, where is a reliable place to get the dust/piston and master cylinder seals?