Decided to throw a new camchain into the bike while it was open, tensioner was fine.
Got the head back on and we went to adjust the valves to discover one exhaust valve was beyond adjustment. It was also Taiwanese shit and not OEM.
Head back off, new OEM oil seals x 4, Hot Cam shims , 2 OEM Exhaust valves and a big clean up or the inlet valves. This crap's getting expensive