Look for a notch on the motor's case, at about 11:00
that's your timing mark. the first mark on your flywheel is where the points open, and the second is for TDC.
You can either pry the points to adjust the timing, or loosen the screws that hold the strator plate, and move it around that way. After you get the timing where you want it, remove the screws one at a time and use thread-lock on them. If you don't thread lock these screws, they will come loose and wedge somewhere you don't want them.