On dismantling my WD B40 forks I discovered an 'O' ring fitted on the following part on one fork leg described in the parts book as "Packing Piece, Top Bearing" part number 68-5134.
On checking the other fork leg there was no 'O' ring fitted to the same part? The parts book doesn't show an 'O' ring?
My question is, should there be an 'O' ring fitted here or not?
If there should be one, does anyone know what the part number is for it?
P.S. - Yes I know I need new stanchions