I purchased a couple of Yamaha 50HP outboards (FT50CET) but due to unforeseen circumstances have been unable to use them until now. They have been in their crates for almost 3 years. I have now un-crated and unwrapped them and, as I would expect, they still look brand new. But I am wondering if there any special precautions or preparatory steps I should take before starting them up for the first time.