1981-1984 Official Honda ATC250R Shop Manual, Page 208Get this manual
'82 ATC250R ADDENDUM
ATe 250R
ASSEMBLY
CAUTION:
Handle the master cylinder piston, cylinder and spring as setAssemble the master cylinderCoat all parts with clean brake fluidDip the piston cup in brake fluid before assemblyCAUTION:
CYLINDER SPRING""""'-MASTER PISTON
BRAKE FLUID DOT-3