E4-29EML42011MOTOR EXTERIORCleaning the Outboard MotorAfter use, wash the exterior of the out-board with fresh water. Flush the coolingsystem with fresh water.Cleaning cooling-water passagesNOTE:Refer to cooling system flushing instruc-tions in “TRANSPORTING AND STORINGOUTBOARD MOTOR”.Checking Painted Surface of MotorCheck the motor for scratches, nicks, orflaking paint. Areas with damaged paintare more likely to corrode. If necessary,clean and paint the areas. Consult aYamaha dealer for touch-up paint.102024102025EML44010COATING THE BOAT BOTTOMA clean hull improves boat performance.The boat bottom should be kept as cleanof marine growths as possible. If neces-sary, the boat bottom can be coated withan anti-fouling paint approved for yourarea to inhibit marine growth.Do not use anti-fouling paint whichincludes copper or graphite. These paintscan cause more rapid engine corrosion.EML40010CHECKING BOLTS AND NUTS1) Check that bolts securing the cylinderhead and engine and the nut securingthe flywheel are tightened with theirspecified tightening torques.2) Check the tightening torques of otherbolts and nuts.
