Hello from texas

Hey! Old rider here that is finally getting back to the dirt because of my 10 year old son. I’ve been creeping here for awhile and picking up tips. Currently got the boy on an xr70 that I need help with. Parts are not as easy to source as all say they are. Hope I can find some help here!! Currently looking at a super clean xr80r( the boy is not 2 stroke ready). Just trying to pass along the legacy. I ride a 68 panhead but started on dirt.