The last thing I ever want to do is give someone a wrong answer to a fix. I posted on the location of TDC on that fellow with the absence of a timing hole. I said just use a piece of wire, and you said easier said then done. In 40 years I had to kit the magnito 4 times and it was set to fire on #1.So I had to find TDC on 1 or it would not start much less run, if your off 1 tooth on a side mount dist she wont go.so my wire method had to be correct. Well now you got me to thinking--------- after you said easier said then done and today I went out and found TDC with both thumb and wire both work with the hand crank on my 43 2N. However rather then a pure vertical angle of attack, its done at about 70 degree of R/A give or take AOA. Give it a try if ya get a chance and let me know what ya think, if Im wrong I been real lucky for 40 yrs and I would sooner be lucky then good, or maybe I was never told it wouldnt work lol.