How to Winterize a Four-Stroke Honda Outboard

Written by will charpentier
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How to Winterize a Four-Stroke Honda Outboard
Honda's storage instructions are specific to Honda outboards. (toy outboard motor image by pearlguy from

Preparing your outboard and your boat for winter storage means that the boating season is over, a hard fact to swallow and, often, a time for reliving the events of the summer. If you have a Honda four-stroke outboard, it's also a time for following the factory recommendations for storage to the letter, to ensure you find your motor and your boat in order when spring arrives and you begin fitting out for the coming season.

Skill level:

Things you need

  • Oil drain pan
  • Screwdriver

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  1. 1

    Remove the motor cover by pressing down on the latch at the back of the cover, tilting the cover forward and lifting the cover from the motor to expose the power head.

  2. 2

    Disconnect the fuel hose connector from the line coming from the fuel tank. Move it away from the motor's power head and allow it to rest in an oil drain pan.

  3. 3

    Pull the carburettor drain hose from the number 3 carburettor away from the power head and set a drain pan under its end. Use a screwdriver to partially unscrew, but do not remove, the number 3 carburettor's drain screw. When the number 3 carburettor has fully drained itself of fuel, drain the number 2 and number 1 carburettors through the number 3 carburettor and its drain hose.

  4. 4

    Tighten the drain screws and clip the drain hoses back into place inside the motor. Replace the motor cover.

  5. 5

    Move the motor to its winter storage stand so that's stored upright, to allow any water remaining in the water pump to drain.

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