Re: 25hp Mercury 2 stroke shutdown query
Don't thing you will get a general consensus on this one nool. Everyone has there own views and practices. If one method was better than the other than I think we would all be doing it but it really boils down to personal preference. My preference is to leave the fuel in the system and heres my logic. If you drain the fuel, even the last drop, there are still wetted surfaces left. What is more likely to form a varnish, repeated small film deposits or a large volume of fuel ? Especially true I would think of the pre-mixed fuels. Todays fuels are full of additives to extend the "shelf life" and stability of the product. Letting it sit for a couple weeks or even months won't cause any negative side effects. I let my lawnmower sit unused for 7 months every year for more than 15 years and it starts each spring on the second or third pull. Never added any stabilizer or drain the tank, just park it in the fall. I don't add any stabilizer to my outboard in the fall either, just fog the engine really good.
