Counter shaft Bearing seal?

[gnrnr]

Hi guys,

i noticed some oil dripping form the starter motor the other week and think it is leaking from the countershaft seal. Looking at the parts diagram there should be an o-ring on the shaft behind the seal (please correct me if I've got this wrong).

Unfortunatley that o-ring does not appear to be avaible as a separate part. To get it I'd need to replace the bearing and some other parts. Does anyone know what size it is? My bike isn't actually fitted with one and I'd like to put one back in if needed before I replace the seal.

Thanks


Gnrnr