[duffy]

needing side plates for this old bike also there is very little compression, are these engines easy to rebuild?

 

[tmas]

needing side plates for this old bike also there is very little compression, are these engines easy to rebuild?

Just get a manual and you will be fine. Here is a link to the side plates.
tmas

1973-1976 XR75 Steel Side Plate Set Complete - Primered