Thread pitch is 1.7 mm on a spark plug.
So if you're going to be lazy and not by the nice buzz it tool just put your piston stop in there too you feel it just start to bind just to touch as you go by TDCJ rent it in 1 and 1/2 turns after you back the rotation down and the opposite direction the engine runs of course.
then to make sure that the mark on your little flywheel and plate or actually lined up there has been a few reports of these not being dead on even though they are marked so you need to use a timing light and then when the engine is approximately 2000 to 4000 RPMs check your timing marks on the stator and flywheel.
so wherever you see the mark on the flywheel lighting up when the strobe light flashes that is where your timing mark is where it actually fires before any of the retarding starts on the CDI.
and with that time you are lining up with you doing it the lazy way which should be roughly want a half turns in with your piston stop from TDC you should be pretty close to Golden right there.
I hope you have a head temp gauge.
but if you don't you have to show can post pictures of this thing when it blows up thank you.