2-24Cooling system012345678910ACooling systemThe fresh cooling water is taken into the front of the trim tab and supplied to the exhaust passage ofthe lower case to cool the exhaust gas.Cooling water also flows around the muffler to cool the upper case and reduce exhaust noise.A Cooling water flowPCVAThermostatCylinder blockCylinder headCylinder blockExhaust coverExhaust guideOil panWater pumpWater inletWaterFuel coolerCooling water pilot holeUpper case (muffler)Lower casePropeller bossTrim tabLubrication system / Cooling system
