1992-1998 Kawasaki PWC Jet Ski Service Repair Manual., Page 9Get this manual
DESCRIPTIONOPERATION
g the velocity of water mass moving through the nozzle, the the thrust move the craftCooling System fitting on the jet pump, aft of the impeller, syphens off cooling waterThis water is delivered first to the exhaust manifold the part of the engineThe is then channeled around the cylinder walls, cylinder head and exhaust pipeAfter the exhaust pipe, some water is channeled overboard through bypass hoseThe remaining water is mixed with exhaust gases in an expansion chamber and finally discharged from the exhaust outletThis mixture of water and exhaust gases has the affect of cooling and somewhat quieting the exhaust emissionOn all models, bypass hose connects the exhaust pipe water jacket to an outlet on the starboard side of the hullWhen water is discharged as "tattle-tale"stream, the operator is assured coolin water is circulating through the engine properly
HIGH PRESSURE AREA COOLING