I read some where that jet skis are totally different from seadoos and don't always need antifreeze. So just hoping someone can tell me specifically how to wintetize a 2003 Kawasaki 900 jet ski.You tube has several good videos on what to do-I used to own a sea doo, i just can't remember all the steps. I know fogging the cylinders, sta-bil in the fuel tank, changing gear oil in the rear on something?, and antifreeze in the coolant lines (i had some clamps on the lines to hold in the anti freeze).