Mercury 25 Jet FourStroke - Page 8

Operation
Prestarting Check List.......................................................................................36
Operating in Freezing Temperatures................................................................ 36
Operating in Saltwater or Polluted Water......................................................... 36
Operating in Shallow Water.............................................................................. 37
How the Jet Drive Operates..............................................................................37
Stopping the Boat in an Emergency................................................................. 39
Steering the Boat.............................................................................................. 39
Mooring the Boat.............................................................................................. 40
Water Intake Blockage......................................................................................40
Clearing A Lodged Impeller.............................................................................. 40
Prestarting Instructions..................................................................................... 41
Engine Break‑in Procedure...............................................................................42
Starting the Engine ‑ Remote Control Models.................................................. 42
Starting the Engine ‑ Tiller Handle Models....................................................... 44
Gear Shifting .................................................................................................... 47
Stopping the Engine ........................................................................................ 48
Emergency Starting.......................................................................................... 48
Maintenance
Cleaning Care Recommendations.................................................................... 50
EPA Emission Regulations............................................................................... 52
Inspection and Maintenance Schedule ............................................................ 53
Top Cowl Removal and Installation.................................................................. 54
Worn/Dull Impeller............................................................................................ 54
Impeller Clearance Adjustment.........................................................................55
Impeller Removal and Installation.....................................................................56
Shift Link Rod Adjustment................................................................................ 59
Battery Inspection ............................................................................................ 60
Fuel System...................................................................................................... 60
Steering Link Rod Fasteners............................................................................ 61
Corrosion Control Anode.................................................................................. 62
Spark Plug Inspection and Replacement..........................................................63
Fuse Replacement ‑ Electric Start Models....................................................... 64
Timing Belt Inspection...................................................................................... 65
Lubrication Points............................................................................................. 65
Checking Power Trim Fluid...............................................................................68
Changing Engine Oil ........................................................................................ 69
Submerged Outboard....................................................................................... 71
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