2003 Kawasaki KLF250 Service Manual., Page 92Get this manual
ENGINE TOP END 4-33 Cylinder and Piston
Install the second ring [A] so that the "RN" mark [B] faces up Install the top ring [C] so that the "R" mark [D] faces up
pin Install the piston lightly and slide it through the side of the Oil the piston pin
Hold the piston in position over the connecting rod, with
piston without snap ring