Hi Guys: New list menber here, and returned to vintage Britbikes after a long hiatus.
I just acquired a 1975 T160 Trident and need some machining help with the head. Sparkplug threads for cyl 1 and 3 are in need of cleaning up with a thread chaser, but the #2 plug is broken off in the head.
I'll be removing the head to have a proper job of thread refreshing done. Any good leads for a machinist who's experienced in this operation?