1983-1985 Original Honda ATC 200X Shop Manual, Page 177Get this manual
BRAKE MECHANISM
Remove the pad pin bolts and brake pads
PAD SPRING Clean the brake caliperPosition the pad spring in the caliper as shownPush the caliper piston in all the wayInstall new pads and the shim in the caliperPush the pads against the caliper to depress the pad spring and loosely install the pad pin bolts with new lock washerTighten the pad pin boltsBend the tabs of the lock washer up