Re: Fogging out Your motor..for winter
Hey ORS,
Nice to meet you at the Cedar Island ramp Thurs eve....
One thing you should do is to drop the bowl on your carb and drain the gas out of it.
After you run your motor down with the gas line disconnected, some gas will still remain in the carb bowl.
If you allow this to remain, it will eventually gum things up.
Here is a quick checklist that covers just about everything:
Freshwater flush
Use a flushing attachment, or run the outboard in a tank filled with clean water.
Empty fuel lines and carburetors
While the engine is still running, disconnect the fuel line from the engine. When the engine dies, the fuel delivery components will be empty, preventing gums from forming in the stagnant gasoline and clogging lines and jets or injectors.
Fog the carburetor intake(s)
Before the engine runs out of fuel, spray fogging oil into the carburetor(s). Fogging oil is an anticorrosive that will protect the internal surfaces of the carburetor and the cylinders. Typically the engine will run rough just before it runs out of fuel. As that happens, give the carburetor(s) a heavier shot of fogging oil to make sure internal surfaces are fully coated.
Drain cooling passages
Disconnect the flush attachment or remove the motor from the flush tank, With the motor upright, let all water drain out of the pick-up. Open drain plugs (if any--see your owner's manual) to empty the powerhead and intermediate housing. Crank the motor a couple of times by hand or "bump" it with the starter to empty the water pump. If the motor will be exposed to freezing conditions, it is essential that no water remains inside.
Fog the cylinders
Remove the spark plugs and spray fogging oil into the holes to coat the interior surfaces of the cylinders. Rotate the flywheel a few turns to spread the oil on the cylinder walls. While the plugs are out is the time to check them and regap or replace as required. Reinstall the spark plugs.
Lubricate linkages and the electric starter drive mechanism
Clean all pivots and visible gears and protect them for the winter with oil or grease, as specified in your owner's manual.
Drain and refill gearcase
Use lubricant specified in your owner's manual. Fill oil tank
This will prevent condensation from forming inside the tank.
Touch up damaged paint
Mist-coat powerhead with an anticorrosion spray
Drain fuel tank and supply lines
Starting your engine in the spring with old gasoline is an invitation to problems, leave gasoline tanks and lines empty.
Stabilize the fuel
Some boaters prefer to store the tanks full to minimize the potential for condensation. I find a cupful of water in the tank in the spring a lot smaller problem than 50 gallons of bad gasoline, but if you want to leave the tank full, pour in an appropriate amount of gasoline stabilizer to combat the formation of passage-clogging gums.
Clean and liberally lubricate propeller shaft
The off season is the perfect time to have your prop(s) serviced. If the engine will be stored on the boat, take the prop(s) home to discourage theft.
Store upright
Laying the engine down risks water draining where it shouldn't be.
Mike
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