Take the deck off. Its easy. Spray everything with silcone. Inside and pump. Wash it down with fresh water inside every time you use it. You can mist a bit in the engine hatch every few rides. You want to keep everything inside slightly wet looking with silcone. Make sure you cover the footwells with a rag. Even a small bit of silicone overspray will make them slippery.what needs to be done different to a jet ski that is in salt water versus fresh water maintenance.