What is the correct way to handle and torque motorcycle cylinder head nuts/bolts during reassembly?

1. Tighten them in a crisscross (diagonal) pattern in two or three progressive stages using a torque wrench to the specified torque.
2. Tighten each bolt fully one by one, starting from the longest bolt to the shortest bolt.
3. Tighten all bolts clockwise in a circle, applying maximum force with an impact wrench.
4. Tighten the bolts by hand until snug, then turn each bolt exactly two full turns with a socket wrench.