To keep your Polaris personal watercraft in good working condition from season to season, you must winterize it at the end of each season. The process takes about two hours to do correctly. If you don't winterize your watercraft at the end of every season, you may cause damage the next time you take it for a ride.
Pull the Polaris personal watercraft out of the water on the trailer. Pull the drain plug out of the back next to the engine. Let the water drain from the hull. Tilt the handlebar back and forth to help drain the hull. Run the engine for 10 seconds at a time to get the water out of the engine. Do not run the engine for more then 10 seconds while the machine is out of the water.
Wash the entire exterior of the watercraft with soap and warm water. Make sure that you remove every bit of dirt and debris from the hull, seat, handlebar and rear engine fin. Coat the machine with wax recommended by Polaris per the owner's manual.
Fill the gas tank with recommended gas. Pour fuel stabilizer into the gas tank. Run the engine twice for 10 seconds each time to circulate the fuel stabilizer through the tank, engine and fuel lines.
Remove the seat to expose the engine by unhooking the securing hook on the sides of the seat. Remove the air filter to expose the carburetor by pulling it out. While the engine is running, quickly spray fogging oil into the carburetor. The engine will stall when you spray the fogging oil into the carburetor. Once the engine stalls, replace the air filter.
Disconnect the battery from the cables with a screwdriver. Remove the spark plugs with the ratchet set. Spray each spark plug socket and each spark plug with the fogging oil. Replace the spark plugs in their sockets. Thoroughly clean all of the oil that is left over on the engine compartment.
Remove the battery with the ratchet set and store in a warm, dry, safe place. Dry the exterior of the Polaris watercraft.