Checking timing with a Timing Light

[Vomieinai]

I have the Honda "window" tool that screws into the crankcase to allow checking of timing using a timing light https://mechanicguides.com/best-timing- ... -ignition/ .
What is not really clear from the Honda manual (Page 3-29) is exactly which mark should be aligned.There is a "T" under which there is either a "1" or a "2" and then under that there is a "F"
Both the "T" and the "F" have a line marked either side and central to the depth of the letter.
Although the manual states that the "F-1" and/or the "F-2" timing mark should align there is no mark that relates directly to that text which indicates that "F-1" and "F-2" are marked across the rotating assembly which of course they are not.
So is it the line beside the T (which to me would indicate timing) or the line beside the F that should be aligned?
Perthaps it is niether because what aligns on my engine is the central point of numbers "1" and "2".
Why am I even doing this you may ask? I just cannot seem to get this engine running as I would expect.
Engine has been re-built, carbs done professionally, all electrical components checked although I will be replacing the ignition leads when the length of cable ordered arrives in the next coule of days.
After that ????????????????