Mercury MerCruiser Axius 350 MAG, User Manual, Page: 7 / 151

90-864197084 NOVEMBER 2008 Page iii
Checking...........................................................................92
Filling................................................................................92
Changing..........................................................................93
Power Trim Fluid......................................................................94
Checking............................................................................94
Filling..................................................................................94
Changing............................................................................95
Battery......................................................................................95
Multiple EFI Engine Battery Precautions..........................95
Cleaning the Flame Arrestor....................................................95
Positive Crankcase Ventilation Valve (PCV)............................96
Inspection.........................................................................96
Replacement.....................................................................97
Water‑Separating Fuel Filter (MPI)..........................................98
Water‑Separating Fuel Filter.............................................98
GEN III Models.................................................................98
Removal.......................................................................98
Installation....................................................................99
Lubrication...............................................................................99
Electronic Shift Control (ESC) Shift Cable........................99
Sterndrive Unit and Transom Assembly.........................100
Sterndrive U‑joint Shaft Splines And O‑rings (Sterndrive Unit
Removed).......................................................................100
Engine Coupler...............................................................100
Propellers...............................................................................101
Propeller Repair..............................................................101
Bravo Three Propeller Removal.....................................101
Bravo Three Propeller Installation..................................102
Serpentine Drive Belt.............................................................103
Checking.........................................................................103
Replacing or Adjusting....................................................104
Corrosion Protection..............................................................105
Corrosion Information.....................................................105
Maintaining Ground Circuit Continuity............................105
MerCathode System Battery Requirements...................105
Anodes and MerCathode System Locations..................105
Checking the Quicksilver MerCathode System..............106
Power Package Exterior Surfaces..................................106
Boat Bottom Care...........................................................107
Anti‑fouling Paint.............................................................107
Sterndrive Surface Care.................................................108
Flushing the Power Package.................................................109
General Information........................................................109
Flushing Attachments.................................................109
Sterndrive Water Pickups...........................................110
Alternative Water Pickups..........................................111
SeaCore Power Package Flushing Procedure...............112
Models Using The Sterndrive Water Pickup...............112
Section 6 - Storage
Cold Weather or Extended Storage.......................................118
Preparing Power Package for Storage...........................118
Engine and Fuel System Preparation.........................118
Draining the Seawater System..............................................119
Drain System Identification.............................................119
Air Actuated Single Point Drain System.....................119
Manual Single Point Drain System.............................120
Three Point Manual Drain System..............................120
Multi‑Point Drain (MPD) System.................................120
Air Actuated Single Point Drain System.........................121
Boat in the Water........................................................121
Boat out of the Water..................................................123
Manual Single‑Point Drain System.................................125
Boat in the Water........................................................125
Boat out of the Water..................................................125
Three‑Point Manual Drain System..................................126
Boat in the Water........................................................126
Boat out of the Water..................................................127
Multi‑Point Drain (MPD) System.....................................128
Draining the Sterndrive...................................................129
Battery Storage......................................................................130
Power Package Recommissioning........................................130
Section 7 - Troubleshooting
Check VesselView First.........................................................134
Diagnosing EFI Problems......................................................134
Diagnosing DTS Problems.....................................................134
Engine Guardian System.......................................................134
Troubleshooting Charts..........................................................134
Starter Motor Will Not Crank Engine, Or Cranks Slow. . .134
Engine Will Not Start or Is Hard to Start.........................134
Poor Performance...........................................................135
Engine Runs Rough, Misses, or Backfires.....................135
Excessive Engine Temperature......................................135
Insufficient Engine Temperature.....................................135
Low Engine Oil Pressure................................................136
Battery Will Not Recharge..............................................136
Joystick...........................................................................136
Electronic Remote Controls............................................136
Steering System.............................................................137
Power Trim Does Not Operate (Motor Does Not
Operate)..........................................................................137
Power Trim Does Not Operate (Motor Operates but
Sterndrive Unit Does Not Move).....................................138
Section 8 - Customer Assistance Information
Owner Service Assistance.....................................................140
Local Repair Service........................................................140
Service Away From Home................................................140
Stolen Power Package.....................................................140
Attention Required after Submersion...............................140
Replacement Service Parts..............................................140