Has anyone rebuilt the rear shock on the '88? There doesn't appear to be a rebuild 'kit' out there? Anyone done it? Thanks in advance.

hi first post on this site. ive just brought this xr250 knowing it needed work. ive been told its had lots of work done, new crank, oil pump gears, clutch, but the problem is it smokes a lot,i have striped the head and barrel and have found the center cam journal badly worn oil starvation at...