Motorcycle Repair: dirtbike timing issue, engine case, accurate answer

Question
there are a bunch of marks on the flywheel at the bottom of the engine and the top sprocket has one mark on it and I'm not sure where the top sprocket is supposed to line up to set the bottom end(flywheel?)mark and I'm not sure which mark it is if you could tell me where these marks would go it would be a big help thankss

Answer
Chris,
I would need the year, make, and model of bike to
give an accurate answer.
If it has an "F" and "T" mark on the flywheel,
line up the "T" mark with the mark on the engine case.
Otherwise I would need more info about the bike
to figure it out.