Re: Help with winterization of 30hp evinrude
Concur with Home Cookin'. No need to get real intense if you are going to use it within a couple months.
If you will not be using the engine over the winter or for longer storage:
1 Run the carburetor out of fuel by running the engine with a disconnected gas line. This is done so no fuel remains in the carb bowl to gum up. It also leaves the float/needle valve in the "down" position and open so it will not stick up in the closed position.
2 When you have to choke it to get the last of the fuel, give the intake a shot of fogging oil. This will coat the carburetor and intake manifold. Protects them against corrosion.
3 After the fuel is run out and the engine dies, remove the plugs and shoot a blast of fog oil into each cylinder, then turn the engine over a couple times, with the plugs still out, to coat the cylinder walls. You don't need much. If you go crazy here, you may have a hard time starting fouled plugs in the spring with a lot of oil smoke. All you need is quick shot in each.
4 Drain water from the lower unit by opening the oil drain hole and vent. Water is heavier than the gear oil and will drain first. When the oil comes out, there's no more water in there. Check the condition (color, viscosity and presence of metal chips) of the oil and replace if necessary; color and viscosity. If there's metal chips, you have gear damage going on inside the lower unit.
5 Check the condition of the plugs, clean and regap or replace as necessary.
6 Lightly oil (WD-40) all pivot points and grease all zerks. DO NOT grease the oil points, they get gummed up. You don't know how many times I see this mistake.
7 Cover the engine with a plastic bag or canvas cover to keep the sun and ice off it.
8 Store it upright.
9 Don't keep the fuel. Put it in your car. It will run fine in the four-stroke engine. In the spring, use new fuel.
10 That'll be $150.00! Please pay the attendant on your way out. lol
In spring, you'll be able to fire it right up with no "summerizing" necessary.
Best of luck! You're gonna be fine.
J