Honda BF50 (5HP), BF5A Outboard Motors Shop Manual 2014, Page 127Get this manual
5.MAINTENANCE SCHEDULE REGULAR SERVICE PERIOD (1) ITEM Perform at every indicated month or operating hour interval, whichever comes firstCheck level Change Change Check Check-Adjust Check-Adjust Check-Adjust Replace Check Check Check-Adjust Grease Clean Check Check Replace Check Replace Check-tighten Check Clean Check 0(3) Every years (if necessary) 0(2) 0(2) Each use After use First month or 20 Hrs Every months or100Hrs Every year or 200 Hrs
Engine oil Gear case oil Starter rope Carburetor linkage Valve clearance Spark plugs Propeller and cotter pin Anode Idle speed Lubrication Fuel tank and tank filter Thermostat Fuel filter