undo the two mounting bolts, and once you get the caliper off you should see what you have to do from there.
Its been a long time since i had a dirtbike, so i can't remember exactly what it all entails. but if you just look at it you should be able to figure it out. Its a pretty easy job. You also might have to compress the caliper with a vice to get it back on w/ the new thicker brake pads.How do you take apart the brake caliper on a 2003 honda cr 125 so I can change the brake pads?Remove the wheel and then all caliper mounting bolts along with the brake line, you can then apply a small amount of air into the brake line hole on the caliper and this will pop out the pistons.
