Drain the Carb
Vince: The most important thing to do, by far, is to drain the carburetor. The gas will almost certainly dry out and gum it up. The carburetor has tiny passages that the gas must flow through. When the gas dries out over the winter and turns to powder, it really does bad things to the carb. Even if you use an additive in the gas, like Stabil, and I do so that I can keep the gas over the winter and use it next season, you should still drain the carburetor, in my opinion. There is usually a little screw with a washer gasket on it on the float bowl on the bottom of the carb to drain it. After I do that, I usually stuff a paper towel into the intake of the carb so that spiders don't make a home there.I also change the gearbox oil, either in the fall, or next spring. It's recommended to do it in the fall, then the water in the oil doesn't have all winter to do bad things to the gears and bushings.I don't fog my motor even though I do have a can of fogging oil. I figure with all the oil in the gas, there is plenty of oil coating the inside of the cylinders. (My outboards are currently 2 strokes). I have used my Johnson 6 HP motor for 24 years, and only needed to have it worked on professionally once, when it needed the plastic float in the carb. replaced. (If you have a 4 stroke motor, my comment about not fogging the cylinders may not be applicable). For our 2 HP dinghy motor, I just drain the carb and the fuel tank. Fogging a motor won't do the carb any good. The fogging oil may only gum-up the inside of the carb, and won't help the float bowl at all, which is really the problem area that needs to be addressed. I always run the motors in a double drywall bucket, (one nested inside a second one, with the bottom cut out of the top one to make it very deep). They are very clean. I put a little dish detergent in the water, and keep replacing the water with a hose as it is splashed out of the buckets. This flushes out any salt that may be in the motor. I run them for about 5 minutes, disconnecting the fuel hose so that it drains the fuel out of the hose. I also run the motors in the spring in this bucket to minimize the chance of being embarrassed by not being able to get my motor started at the marina ramp. Really those little outboards are very reliable considering the minimal amount of care that they need and the amount of work can do. I have already started mine and run it wide open for hours on a day with no wind, motoring the boat for more than 30 miles at one stretch. Aldo