1981-1984 Official Honda ATC250R Shop Manual, Page 129Get this manual
ATC 250R STEERING STEM INSTALLATION
Install the washer and dust seal on the steering stemDrive the bottom cone race into the steering stem
FRONT WHEELFRONT FORKSTEERING
STEERING STEM DRIVER STEERING DRIVER ATTACHMENT 07946-4300100 or 07946-3710600 GN HT54 (USA only)
DRIVER HANDLE 07749-0010000 or 07749-6110000 Drive in the ball races with ball race driver