Properly winterizing your outboard engine is essential to protect it from freezing temperatures, corrosion, and fuel degradation during the off-season. Follow these simple steps from Hinkle Marine to keep your engine in top shape when spring arrives.

🧼 Step 1: Clean the Engine

  • Rinse the exterior with fresh water to remove salt, dirt, and grime.
  • Flush the engine with fresh water using muffs or a flush kit.
  • Dry the engine and apply a corrosion inhibitor to metal surfaces.

⛽ Step 2: Stabilize the Fuel System

  • Add a fuel stabilizer to the gas tank and run the engine for 10-15 minutes to circulate.
  • Drain the carburetor or fuel injectors if recommended by the manufacturer.

🔧 Step 3: Change Engine Oil and Gear Lube

  • Drain and replace engine oil and the oil filter.
  • Drain and refill lower unit gear lube, checking for any water intrusion.

⚙️ Step 4: Fog the Engine Cylinders

  • Spray fogging oil into the cylinders through the spark plug holes.
  • Turn the engine over manually to coat the cylinder walls.
  • Reinstall spark plugs and tighten to specifications.

🛠️ Step 5: Final Checks and Storage

  • Disconnect the battery and store it in a cool, dry place.
  • Inspect and replace anodes if worn.
  • Cover the engine with a breathable cover to prevent dust accumulation.