Tohatsu 4 Stroke MFS 2/2.5/3.5A Outboards Service Manual, Page 36Get this manual
3 Maintenance
Special Tool Inspection Schedule Inspection Items 1) Inspection of Top Cowl 2) Inspection of Fuel System 3) Inspection of Fuel Tank 4) Inspection of Fuel Cock (Fuel Filter) 5) Inspection of Fuel Cock 6) Replacement of Engine Oil 7) Inspection of Gear Oil Quantity 8) Inspection of Water Pump 9) Replacement of Gear Oil 10) Inspection of Gear Case (for leakage) 11) Inspection of Spark Plug