2000-2001 Kawasaki 1100 STX D.I. Jet Ski Factory Service Manual., Page 164Get this manual
8-6 COOLING AND BILGE SYSTEMS Cooling and Bilge System Flushing
Cooling Sys tern Flushing
To prevent sand or salt deposits from accumulating in the cooling system, it must be flushed occasionallyFlush the system according to the Periodic Maintenance Chart, after each use in salt water, or whenever there is reduced water flow from the bypass outlet on the left side of the hull Remove the fitting cap [A] on the cylinder heada Connect garden hose [B] to the fitting
Start the engine and allow it to idle before turning on the water