How to Winterize a Jet Ski

Read your owner's manual., Decide when your last ride of the season will be., Unload the PWC from the water., Drain the water from the engine., Take the jet ski to the location where you will store it., Wash the jet ski thoroughly., Check the hull...

23 Steps 3 min read Advanced

Step-by-Step Guide

  1. Step 1: Read your owner's manual.

    The manual may have tips about special winterization procedures that are unique to your personal watercraft (PWC).
  2. Step 2: Decide when your last ride of the season will be.

    Plan to winterize the jet ski directly after the last ride. , Secure it on the trailer.

    Drive just a few feet onto the ramp and stop.

    In order to drain the water, the stern will need to be higher than the bow of your jet ski. , Start the engine while it is out of the water.

    Turn the steering handle from side to side.

    Water will wick off from the engine.

    Turn the engine off after 30 seconds.

    Stop the engine and let it rest for 30 seconds.

    Start it again twice more with a rest period in between. , Place it on a stand where it will sit above the ground.

    Your storage area should be far away from any flammable materials.

    Winterized jet skis are usually stored with some gas in the tank, so use caution.

    Make sure your jet ski is level on its base.

    If it is on a trailer, place wooden planks behind the wheels. , Buy some car washing soap and use warm water if possible.

    Clean the jet ski immediately after your last ride, if possible.

    The algae and other dirt will be easier to loosen from the body.

    Use a large, soft sponge to cover the exterior with warm water and soap.

    Go over each area several times, since the grime is tougher to remove than car dirt.

    Use a non-abrasive brush to scrub harder near the bottom of your jet ski.

    You will need to remove all the algae.

    Rinse the jet ski thoroughly.

    Dry it with soft towels completely. , If there is water, dry it with soft towels. , Some boat supply stores may recommend more specialized products. , Allow it to sit according to package directions.

    Wipe off the wax. , Apply a light coat. , You will reduce the risk of condensation in the engine by storing the jet ski with gas. , Read the directions to see how much you will need to add.

    Stabilizer keeps the carburetors from getting clogged. , Run it for 30 seconds.

    This will allow the stabilizer to reach all areas of the engine and remove excess water. , You will get better access to the interior of the engine compartments.

    You will want to replace the air cleaners after you oil the carburetors. , Spray fogging oil into both carburetors until the engine stalls. , Ensure your wires are grounded before you continue. , Place a cloth over the holes.

    Press the start button on the jet ski.

    This will disperse the oil, but your craft will not start.

    Replace the spark plugs. ,, Detach the negative terminal before the positive terminal. , Store it on a rubber mat instead of the concrete. , This will prevent nesting bugs. ,
  3. Step 3: Unload the PWC from the water.

  4. Step 4: Drain the water from the engine.

  5. Step 5: Take the jet ski to the location where you will store it.

  6. Step 6: Wash the jet ski thoroughly.

  7. Step 7: Check the hull for water.

  8. Step 8: Buy car wax to apply to your jet ski.

  9. Step 9: Apply the wax to the exterior of the jet ski.

  10. Step 10: Apply multi-purpose lube to metal hinges and metal handles.

  11. Step 11: Fill the jet ski gas tank.

  12. Step 12: Add gas stabilizer to the gas tank.

  13. Step 13: Start the engine.

  14. Step 14: Remove the air cleaners.

  15. Step 15: Start the engine.

  16. Step 16: Remove your jet ski's spark plugs.

  17. Step 17: Spray fogging oil into the holes.

  18. Step 18: Unlatch the seat of the jet ski to allow trapped water to evaporate.

  19. Step 19: Disconnect the battery.

  20. Step 20: Store the battery in a garage

  21. Step 21: where it receives some warmth.

  22. Step 22: Put a steel wool rag inside your jet ski's exhaust.

  23. Step 23: Place a tarp over the machine.

Detailed Guide

The manual may have tips about special winterization procedures that are unique to your personal watercraft (PWC).

Plan to winterize the jet ski directly after the last ride. , Secure it on the trailer.

Drive just a few feet onto the ramp and stop.

In order to drain the water, the stern will need to be higher than the bow of your jet ski. , Start the engine while it is out of the water.

Turn the steering handle from side to side.

Water will wick off from the engine.

Turn the engine off after 30 seconds.

Stop the engine and let it rest for 30 seconds.

Start it again twice more with a rest period in between. , Place it on a stand where it will sit above the ground.

Your storage area should be far away from any flammable materials.

Winterized jet skis are usually stored with some gas in the tank, so use caution.

Make sure your jet ski is level on its base.

If it is on a trailer, place wooden planks behind the wheels. , Buy some car washing soap and use warm water if possible.

Clean the jet ski immediately after your last ride, if possible.

The algae and other dirt will be easier to loosen from the body.

Use a large, soft sponge to cover the exterior with warm water and soap.

Go over each area several times, since the grime is tougher to remove than car dirt.

Use a non-abrasive brush to scrub harder near the bottom of your jet ski.

You will need to remove all the algae.

Rinse the jet ski thoroughly.

Dry it with soft towels completely. , If there is water, dry it with soft towels. , Some boat supply stores may recommend more specialized products. , Allow it to sit according to package directions.

Wipe off the wax. , Apply a light coat. , You will reduce the risk of condensation in the engine by storing the jet ski with gas. , Read the directions to see how much you will need to add.

Stabilizer keeps the carburetors from getting clogged. , Run it for 30 seconds.

This will allow the stabilizer to reach all areas of the engine and remove excess water. , You will get better access to the interior of the engine compartments.

You will want to replace the air cleaners after you oil the carburetors. , Spray fogging oil into both carburetors until the engine stalls. , Ensure your wires are grounded before you continue. , Place a cloth over the holes.

Press the start button on the jet ski.

This will disperse the oil, but your craft will not start.

Replace the spark plugs. ,, Detach the negative terminal before the positive terminal. , Store it on a rubber mat instead of the concrete. , This will prevent nesting bugs. ,

About the Author

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Patricia Cooper

Enthusiastic about teaching DIY projects techniques through clear, step-by-step guides.

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