Hello. I am planning to winterize my 70 h.p. Chrysler outboard motor 1979 and have never done it myself before. What are the steps I should follow? Do I need to fog the engine and if I do, where do I spray it, what kind of chemical do I use? Also, is mercuric acid necessary to clean the hull and is it damaging to grass or pavement if I use it to clean the hull outside . I was reading some of your articles and it said you must add fuel stabalizer and run it through the engine and disconnect the fuel line . So, some stabalized fuel will be present in the engine? Is it okay to leave it like that? Do I need to add antifreeze and where ? Also, do I need to change my spark plugs? Do I need to drain the oil and refill it with new oil and leave it in the engine for the winter?<br />Thank you for your help.