Mercury 300 XS OptiMax Manual page 5

Maintenance
Power Package Care........................................................................................ 65
Replacement Parts for Your Power Package................................................... 65
EPA Emissions Regulations............................................................................. 65
Inspection and Maintenance Schedule............................................................. 66
Flushing the Cooling System (Powerhead)...................................................... 68
Flushing the Cooling System (Lower Unit)....................................................... 69
Top Cowl Removal and Installation.................................................................. 70
Cleaning Care for Top Cowl............................................................................. 70
Fuel System...................................................................................................... 70
Steering Link Rod Fasteners............................................................................ 74
Fuses ............................................................................................................... 75
Corrosion Control Anode.................................................................................. 76
Spark Plug Inspection and Replacement.......................................................... 77
Battery Inspection ............................................................................................ 79
Charging System Fusible Link.......................................................................... 79
Replacing the Propeller.................................................................................... 80
Lubrication Points............................................................................................. 82
Single-Ram Trim System.................................................................................. 83
Three-Ram Trim System.................................................................................. 86
Gearcase Lubricant.......................................................................................... 89
Submerged Power Package............................................................................. 91
Storage
Storage Preparation.......................................................................................... 92
Protecting Internal Engine Components........................................................... 93
Protecting External Outboard Components...................................................... 94
Gearcase.......................................................................................................... 94
Positioning Outboard for Storage..................................................................... 94
Battery Storage................................................................................................. 94
Troubleshooting
Starter Motor Will Not Crank the Engine........................................................... 95
Engine Will Not Start......................................................................................... 95
Engine Runs Erratically.................................................................................... 95
Performance Loss............................................................................................. 96
Warning Horn Activates (With Power Loss)...................................................... 96
Warning Horn Activates (No Power Loss)........................................................ 96
Battery Will Not Hold Charge............................................................................ 97
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