Yamaha F25A Owner's Manual

Also see for F25A: Service manual Service manual Service manual Owner's manual Owner's manual

Contents

E4-33EMU01172CLEANING COOLING-WATERPASSAGESFlushing device equipped modelPerform this procedure right after opera-tion for the most thorough flushing.1) After shutting off the engine, unscrewthe garden-hose connector 2 fromthe fitting 1 on the bottom cowling.2) Screw the garden-hose connector 2onto a garden hose 3 which is con-nected to a fresh-water supply.3) With the engine off, turn on the watertap and let the water flush throughthe cooling passages for about 15minutes. Turn off the water and dis-connect the garden hose 3.4) When flushing is complete, reinstallthe garden-hose connector 2 on thefitting 1 on the bottom cowling.Tighten the connector securely.cCDo not leave the garden-hose connectorloose on the bottom cowling fitting or letthe hose hang free during normal opera-tion. Water will leak out of the connectorinstead of cooling the engine, which cancause serious overheating. Be sure theconnector is tightened securely on the fit-ting after flushing the engine.NOTE:8 When flushing the engine with the boatin the water, tilting up the engine until itis completely out of the water willachieve better results.8 Refer to cooling system flushinginstructions in “TRANSPORTING ANDSTORING OUTBOARD MOTOR”.000913qw e