Bombardier SeaDoo 2000 factory shop manual volume 2, Page 177Get this manual
Subsection 02
Section 06 COOLING SYSTEM (CIRCUIT, COMPONENTS AND CARE)
CIRCUIT
CAUTION: All hoses and fittings of the cooling system have calibrated inside diameters to assure proper cooling of the engineAlways replace using appropriate Bombardier part numberThe water is entering the engine by the water inlet fitting at the cylinder headThe water supply is provided by pressurized area in the jet pump between the impeller and venturiWater is directed to the water inlet fitting at cylinder headAll Models Water continues to circulates from inlet hose through the one piece cylinder head which features improved combustion chamber and better spark plug cooling