Hey Folks! I read all the comments and decided to resolve my head gasket issue before tearing the engine down. I pulled the water pump, replaced the “O” rings (pump showed signs of previous leakage), removed the radiator and flushed twice with a 60/40 water with muriatic acid mixture, filled with R3T correct coolant and replaced cap with an Triumph OEM radiator cap.
It seems to have worked! Rode for 200 miles in our South Texas 90+ degree heat and the coolant tank remains at the mid mark. Bike runs great.
Gonna run a few more times before I’m gonna count my chickens, but it looks good!
Thank you all for your help!!!