Jet Ski Maintenance and Care: A Guide to Keeping Your Watercraft in Top Shape
Jet Ski Maintenance and Care: A Guide to Keeping Your Watercraft in Top Shape

Jet Ski Maintenance and Care: A Guide to Keeping Your Watercraft in Top Shape

Jet skis, also known as personal watercraft (PWCs), provide endless fun and exhilaration on the water. Whether you’re racing across the waves or leisurely cruising on calm lakes, proper maintenance and care are essential to ensure your jet ski performs optimally and remains in top condition. In this comprehensive guide, we’ll cover everything you need to know about maintaining and caring for your jet ski, including tips on trailer maintenance and essential equipment.

Regular Maintenance Schedule

Just like any other vehicle, jet skis require regular maintenance to keep them running smoothly and to prolong their lifespan. Here’s a recommended maintenance schedule to follow:

  1. Pre-Ride Check: Before each ride, conduct a pre-ride check. Inspect the hull for any cracks or damage, check the fuel level, verify the battery charge, and ensure all safety equipment (life jackets, emergency lanyard) is in place.
  2. After-Ride Rinse: After each ride, rinse your jet ski with fresh water to remove saltwater, sand, and debris. Pay special attention to the pump area and intake grate, as these can accumulate debris that affects performance.
  3. Engine Maintenance: Follow the manufacturer’s guidelines for engine maintenance. Change the oil, spark plugs, and filters at recommended intervals. Regularly inspect hoses, belts, and connections for signs of wear or leaks.
  4. Battery Care: Keep the battery charged during the offseason and consider using a battery tender to maintain optimal charge levels.
  5. Cooling System: Check the cooling system regularly to ensure it’s functioning correctly. The cooling system prevents the engine from overheating and is crucial for proper performance.
  6. Fuel System: Use high-quality fuel and avoid ethanol-blended fuels, as they can cause damage to the fuel system. Always store your jet ski with a full tank to prevent condensation and fuel degradation.
  7. Trailer Maintenance: Regularly inspect the trailer tires, bearings, and lights. Lubricate the trailer’s moving parts and keep the trailer clean to prevent rust and corrosion.


If you live in an area with cold winters or plan to store your jet ski for an extended period, proper winterization is crucial to prevent damage from freezing temperatures. Here’s a step-by-step guide to winterize your jet ski:

  1. Flush with Fresh Water: Flush the cooling system with fresh water to remove any salt or debris.
  2. Fuel Stabilization: Add a fuel stabilizer to the tank and run the engine for a few minutes to distribute the stabilizer throughout the fuel system.
  3. Change Oil and Filter: Change the engine oil and filter to remove any contaminants that could cause damage during storage.
  4. Fogging Oil: Spray fogging oil into the spark plug holes to protect the internal components from corrosion.
  5. Battery Care: Remove the battery and store it in a cool, dry place. Keep it charged with a battery tender.
  6. Drain Water: Drain any remaining water from the pump and cooling system to prevent freezing.
  7. Cover and Store: Cover the jet ski with a breathable, water-resistant cover, and store it in a dry, sheltered area away from direct sunlight.

Trailer Maintenance

The trailer is an essential part of jet ski ownership, as it allows you to transport your watercraft to different water bodies easily. Proper trailer maintenance ensures safe and trouble-free towing. Here are some essential trailer maintenance tips:

  1. Regular Inspections: Inspect the trailer regularly for signs of wear or damage. Check the tires for proper inflation, tread wear, and any visible damage.
  2. Wheel Bearing Maintenance: Grease the wheel bearings at least once a year or as recommended by the manufacturer. Faulty wheel bearings can lead to trailer breakdowns and even accidents.
  3. Light Check: Before each trip, check that all the trailer lights are functioning correctly. Proper lighting is crucial for safe towing, especially at night or during low visibility conditions.
  4. Safety Chains and Straps: Ensure the safety chains and straps are in good condition and securely fastened to the tow vehicle.
  5. Trailer Cleaning: Rinse the trailer with fresh water after each use to remove salt and debris that could lead to corrosion.

Essential Equipment

Apart from the jet ski and trailer, several essential pieces of equipment enhance your jet ski experience and contribute to its maintenance:

  1. Life Jackets: Always wear Coast Guard-approved life jackets for safety while riding. Make sure they fit properly and are in good condition.
  2. Anchors and Dock Lines: Carry a suitable anchor and dock lines to secure your jet ski when anchoring or docking.
  3. Fire Extinguisher: Have a marine-rated fire extinguisher on board in case of emergencies.
  4. Tool Kit: Keep a basic tool kit on board for minor repairs or adjustments.
  5. Emergency Kit: Carry an emergency kit with first aid supplies and signaling devices.


Proper maintenance and care of your jet ski and its equipment are essential to ensure safe and enjoyable rides on the water. Following a regular maintenance schedule, conducting pre-ride and after-ride checks, and properly winterizing your jet ski will prolong its life and keep it in top shape. Additionally, paying attention to your trailer’s maintenance ensures safe and smooth towing to your favorite water destinations. With the right equipment and regular care, you can maximize the fun and excitement of jet ski riding while prioritizing safety and reliability. Happy riding!