These steel exhaust spigots fit into your 1972 and up 750 c

There is a similar tool with different BSF threads for 1968 and older Triumph and BSA motorcycles

650 and 750cc Triumph motorcycles

meaning less power off the line but better high-speed cruising

TDC Top Dead Center Tool 1963-82 500/650/750 Triumph and 1969-72 BSA A50 A65 Ebay_Ready These steel exhaust spigots fitThis Top Dead Center (TDC) tool makes locating top dead center on your 500 650 750 c. c. Triumph (and 69 72 BSA A50 or A65) very simple, very useful for installing your points, electronic ignition, or Joe Hunt or Morris magneto. Our TDC tool has two sets of threads allowing for proper use on all year ranges of unit Triumph with only one tool! This specialty tool threads into the hole located on the crankcase right behind the cylinders, and when you