Bombardier SeaDoo 2001 factory shop manual, Page 56Get this manual
Section 02 MAINTENANCE Subsection 05 (STORAGE)
At this point, install hose pincher on bleed outlet hoseRemove pinchers in this order to allow proper flow of antifreeze1Bleed outlet hose2Crankcase cooling cover outlet hose3Engine cylinder drain hose4Water outlet hosePour approximately 200 mL (7 oz) of antifreeze in the water regulator valve supply hose to allow antifreeze flowing through the valve and into muffler to protect itRemove temporary hose and reconnect engine water outlet hoseAll Models Most of the antifreeze will drain out when removing the hose pinchersUse container to recover itDISPOSE ANTIFREEZE AS PER YOUR LOCAL LAWS AND REGULATIONSNOTE: Although antifreeze will mainly drain out, the antifreeze has mixed with the water that was possibly trapped in the cylinder water jackets and thus preventing freezing problemsAt pre-season preparation, drain the remaining antifreeze from cooling system prior to using the watercraft