1995-1997 Kawasaki 750ZXi-900ZXi Jet Ski Repair Manual., Page 197Get this manual
STORAGE 14-3
Star the engine and run it in 15 second periods until all fuel in the carburetor is used up Wait minutes between 15 second running periods
CAUTIONDo not run the engine with the watercraft out of the water for more than 15 seconds at timeOverheatingcan cause severe engine and exhaust system damage
Remov the air intake cover [A] from the carburetor Lifout the flame arrester and clean it, if necessary (see Flame Arrester Cleaning in the Fuel System chapter)Spra penetrating rust inhibitor down the carburetor bore Instalthe flame arrester Reinstal the cover, apply non-permanent locking agent to the threads of the air intake cover bolts and tighten securely
Remov the spark plugs and push the plug caps fully onto the plug cap holdler on the electric casePou one ounce of motor oil into each cylinder