2005 Kawasaki STx-12F Jet Ski Factory Service Manual., Page 40Get this manual
PERIODIC MAINTENANCE 2-21 Periodic Maintenance Procedures
Luenanviegthe engine idle for several minutes with the water nTurn off the waterLeave the engine idling Rev the engine few times to clear the water out of the exhaust ystemCA UTION
Do not run the engine without cooling water supply for more than 15 seconds, especially in high revolutionary speed or severe engine and exhaust system damage will occurw Sdaitpcth roff the engine, remove the garden hose and the eInstall the flushing cap securely