The reeds could be open, or your flywheel has jump the rocket key. Your magnets should be just past the coil at TDC. Have you pulled the plug and checked for a spark?
funny you say that lol.... my head bolts came loose earlier... pealed the old yamabond gasket, made a new one. Now she needs to settle for a while..Check your head bolts, after you run a new engine and hour or two, you need to check them, not on a stock but 2 pcs head/cyld. The parts exspand when they get hot then the cool. That's happened to me so many times.
That's one of the things that bugg me the most. No one has a hp Cag coil. I don't see how that PBU $80 spark plug wire attached to a stock coil works. If you raise the voltage, you lose amps. It takes like 11amps at 12V to make 1 amp at 110 volts. Oh, you can buy a $350 coil.