Yamaha 20C Owner's Manual

Also see for 20C: Service manual Owner's manual

4-6EMK23511Flushing cooling system8 Flushing in a water tank1) Fit the outboard motor on the watertank, and fill the tank with fresh waterto above the level of the anti-cavita-tion plate.2) Shift into Neutral, start the engine,and run at low speed for a few min-utes.cCIf the fresh water level is below the levelof the anticavitation plate, or if the watersupply is insufficient, engine seizure mayoccur.1 Water surface2 Lowest water levelGB605011qwcC8 Do not place the engine on its sidebefore the cooling water has drainedfrom it completely, or water may enterthe cylinder through the exhaust portand cause problems.8 Store the engine in a dry, well-ventilat-ed place, not in direct sunlight.EMK24011Fuel Tank1) Drain the fuel from the tank for a longperiod of storage.2) Store the fuel tank in a dry, well-venti-lated place, not in direct sunlight.wThe fuel tank supplied with this engine isits dedicated fuel reservoir and must notbe used as a fuel storage container.Commercial users should conform to rel-evant licensing or approval authority reg-ulations.