winterization

Question
Winterization of mercury 250 pro xs optimax serial 2B362393. With the teaspoon of oil added to each spark plug opening....its mentioned to turn on engine and spin 2-3 times with plugs out. Was wondering if manually turning prop a few rotations is as effective?

Also where are people buying parts from online?

Need to turn FLYWHEEL (not propeller).

See Rhonda's post, pinned at the top of the Forum:

If you want to order or price Mercury Engine Parts or Accessories...