If you have 4 marks on pulley, it's the one all the way to the right @ 3600rpm or there abouts for timing the LH cyl. Turn dizzy either way & watch marks. If you need to go more in one direction, the rotor shaft needs to go 1 tooth in the opposite direction when you put it back in.
For me to see marks line up, I look on an angle in between the forks. You can't see it strait on cause belt is in the way.