RE: Moki 210 Idle adjustment disk
Jim:
If unable to get anything else, plain neoprene o-rings will work untill you have to readjust. Neoprene o-rings are very rare these days, and harden too much, Buna-N and Viton last a little longer than it takes to replace them. The OEM o-rings may be Nitrile, don't know. I just buy them from MECoA.
Bill.