I don't have a owners manual for my boat. I just bought it used and didn't a owners or service manual with it. From everything I have researched, I have been getting conflicting opinions on fogging a 4 stroke. Some say to fog, some say not to fog because it's will damage sensors. Right now I am leaning on not fogging and just removing the plugs and spraying fogging oil or WD40 in the cylinders. What does the owners manual recommend?