Oh No! My Jet Ski Sunk !! (Part 2 of 2) Posted on December 18, 2018August 23, 2021 By admin (4 Stroke) First question is….. 4 stroke or 2 stroke? Water in a 4 stroke is in the crankcase and so is the reservoir for the oil. The water and oil get mixed and put a white foam all over the inside of the engine. Much bigger problem. Read More “Oh No! My Jet Ski Sunk !! (Part 2 of 2)” » General Tips