centrifugal oil filter

Hey guys, I've been working on a 1974 honda cb200 and its come along pretty well, that is until I ran into the oil filter... Thanks to most of you guys I finally got the cap off the oil filter but now I am where I need a lock nut wrench tool to get off the lock nut inside the centrifugal oil...

Hi folks, I am baffled, the Honda manual CB 200 on page 21 says: – "2, Install the oil filter cap so that the tab aligns wilh the index mark on the filter rotor." And has a photograph with callouts that appear to point nothing. "Fig. 3-30 ---- (I) Index mark. (2) Tab" The oil filter...