so i have a 03 cr125r and i got the wheel off and put new sprocket and disk on it and want to put new bearings and seals in it. I got the 2 bearings on the sprocket side out but on the brake disk side there is a bearing retainer and only one bearing. I cant figure out out to get the retainer out. it says to take it out and it says to do something with a drill in the service manual but doesnt go into any detail. does anyone know how to get this out.