How to Winterize an Outboard Motor
How to winterize an outboard motor. Spring problems usually start with a missed step in fall. Running on muffs without enough water flow. Forgetting to circulate stabilized fuel. Using the wrong fogging method on EFI models. Leaving old gear oil in the lower unit. Storing the motor tilted up for months. The fix is a set order. Stabilize the fuel. Flush the cooling system. Fog the engine. Change engine oil on 4-strokes. Replace lower unit gear oil. Grease key points. Disconnect the battery. In freezing climates, run marine antifreeze through the cooling passages after flushing. Check the tell-tale stream during flushing. Let the motor drain fully after shutdown. Store it vertically.












