Yeah I was going to mention the grease.
Every bike I rode in the '70s early '80s had grease in plugs or the older twist connector tubes.
Must have saved a fortune when they manufacturers stopped using it.
Real handy if you tend to ride creek crossings or mud.
C30F Power Up needle
2 turns out
Baffle out, Screens In
It starts,it runs,it gets to where all CRFs can get to without the valve or valve plate dramas