Like inboards and sterndrives, outboard engines are also subject to potential damage from freezing and from being laid up in disuse for months at a time. So outboards demand winterizing too. … To serve as our example, we used a Yamaha F150 four-cylinder outboard.
How do you winterize a 4 stroke boat engine?
Winterizing Your Outboard Motor
- Drain the crankcase oil (Four-stroke motors)
- Install a new oil filter (Four-stroke motors)
- Filling the crankcase with new oil (Four-stroke motors)
- Changing the lower unit gear oil.
- Stabilizing the fuel.
- Flushing the outboard with antifreeze.
- Fogging the cylinders.
Do you really need to winterize an outboard motor?
If you want your engine to start in the spring and last you many years and plan on not using your engine all winter, you do have to winterize an outboard motor. Winterizing the engine helps to prevent damage during disuse, which is the chief cause for engine failure. Failing to winterize may lead to complications.
Can an outboard motor freeze?
A very popular question asked by a concerned boat owner, (mainly outboard motorboats) is Will A Boat Motor Freeze? The simple answer is yes. If the temperature is low enough, it can freeze. Water, oil and other engine related lubrication coupled with freezing temperatures is the main culprit for freezing a boat motor.
Should outboard motor be stored up or down?
Don’t Store the Motor Tilted Up
When you park the boat for the winter keep the motor trimmed or tilted down, especially if it’s outdoors. This will allow all of the water to drain out of the motor’s cooling system.
How do you store an outboard motor for the winter?
The best way is to either leave the motor on the boat or on an engine stand in an upright position, not tilted. If neither of these are an option, try to make sure that the engine is in an upright, self-draining position. If you can’t do this, be sure that the cooling system is drained completely.
Can I leave my outboard in the water in the winter?
Yes, keeping water, snow, and ice out is important, but so is letting the cover breathe to prevent “locking-in” moisture. To prevent mold and mildew inside the boat, you need to select a boat cover with vents capable of releasing any air that may build up inside the vessel over time.
Can you leave an outboard motor outside in the winter?
Yes, boats can be stored outside during any season of the year. You will want to make sure you winterize the engine, as well as the boat. Failure to take care of these key factors can lead to massive and expensive damage to the boat.
Is it OK to store an outboard motor on its side?
It’s almost never a good idea to lay an outboard motor down on its side or back. … Mercury Marine recommends upright storage to allow the water to drain from the motor, but Mercury also says that a motor may be stored on its side after the water has drained completely.
Can an outboard motor be stored outside?
It’s entirely possible to store your boat outside during winter months without finding a boat shed or storage facility for it. However, you’ll need to take serious steps to make sure it remains safe and protected over the coldest months.