Z1OwnersClub GB

Am i right in thinking there should be a thrust washer that goes on first behind the large starter gear.
If so does anyone have one for a Z9, none of the usual suppliers have any, or they are NLA.

Think they're available in different thicknesses - or maybe that's the shim washers - to adjust clearance?

I know there's a plain one in the starter assembly, but I'm sure there should be another shamfered one that fits on the crank end.