2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 55Get this manual
Periodic check and adjustment
Maintenance interval chart
Use the following chart as guideline for general maintenanceAdjust the maintenance intervals according to the operating conditions of the outboard motorItem Anodes (external) Anodes (cylinder head, cylinder block, thermostat cover) Battery Cooling water passages Top cowling Fuel filter Fuel system Gear oil Lubrication points Engine idle speed Power tilt unit Propeller and cotter pin Shift linkshift cable Thermostat Throttle linkthrottle cable throttle pick-up timing Water pump Engine oil Oil filter (cartridge) Spark plugs Timing belt Valve clearance (OHC) Remarks Checkreplace Checkreplace Initial Every
10 hours 50 hours 100 hours 200 hours (1 month) (3 months) (6 months) (1 year)
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