MerCruiser 4.3L TKS Sterndrive Owner's Manual page 6

Fuel Requirements...................................................................38
Fuel Ratings....................................................................... 38
Using Reformulated (Oxygenated) Gasolines (USA Only) 38
Gasolines Containing Alcohol............................................ 38
Engine Oil................................................................................ 38
Owner/Operator Responsibilities............................................ 42
Dealer Responsibilities........................................................... 42
Maintenance...........................................................................42
Do-It-Yourself Maintenance Suggestions............................... 42
Inspection............................................................................... 43
Maintenance Schedule - Sterndrive Models........................... 43
Routine Maintenance........................................................ 43
Each Day Start............................................................ 43
Each Day End............................................................. 43
Weekly........................................................................ 43
Every Two Months or 50 Hours................................... 43
Scheduled Maintenance................................................... 43
After the Initial 20 Hour Break-In Period..................... 43
Every 100 Hours or Annually (Whichever Occurs First)
.................................................................................... 44
Every 200 Hours or 3 Years........................................ 44
Every 300 Hours or 3 Years........................................ 44
Every 5 Years.............................................................. 44
Maintenance Log....................................................................44
Sealed Carburetor Mixture Screw.......................................... 45
Engine Oil...............................................................................45
Checking...........................................................................45
Filling................................................................................ 45
Changing Oil and Filter..................................................... 46
Easy Engine Oil Drain System.................................... 46
Engine Oil Drain Pump................................................ 47
Changing Filter............................................................ 47
Power Steering Fluid.............................................................. 47
Checking...........................................................................47
Filling................................................................................ 48
Changing.......................................................................... 48
Engine Coolant.......................................................................48
Checking...........................................................................48
Filling................................................................................ 49
Changing ......................................................................... 49
Drive Unit Oil.......................................................................... 50
Checking...........................................................................50
Filling................................................................................ 50
Cold Weather or Extended Storage........................................ 76
Preparing Power Package for Storage............................ 76
Engine and Fuel System Preparation......................... 77
Draining the Seawater System............................................... 77
Drain System Identification.............................................. 78
Air Actuated Single Point Drain System...................... 78
Page ii
Section 4 - Specifications
Engine Specifications............................................................... 39
Fluid Specifications..................................................................40
Section 5 - Maintenance
Power Trim Fluid.................................................................... 52
Cleaning the Flame Arrestor................................................... 53
Changing the Water-Separating Fuel Filter............................ 55
Lubrication..............................................................................55
Propellers............................................................................... 60
Serpentine Drive Belt.............................................................. 65
Flushing the Power Package.................................................. 67
Battery.................................................................................... 69
Corrosion Protection............................................................... 70
Section 6 - Storage
Sterndrives......................................................................... 40
Engine................................................................................ 40
Changing.......................................................................... 51
Checking...........................................................................52
Filling................................................................................ 53
Changing.......................................................................... 53
Positive Crankcase Ventilation Valve (PCV).................... 54
Changing.....................................................................54
Steering System.............................................................. 55
Throttle Cable.................................................................. 57
Shift Cable - Typical........................................................ 57
Sterndrive Unit and Transom Assembly.......................... 58
Sterndrive U-joint Shaft Splines And O-rings (Sterndrive
Unit Removed)................................................................ 58
Engine Coupler................................................................ 58
Driveshaft Extension Models........................................... 59
Propeller Repair.............................................................. 60
Alpha Propeller Removal................................................. 60
Alpha Propeller Installation.............................................. 60
Bravo One Propeller Removal......................................... 61
Bravo One Propeller Installation...................................... 61
Bravo Two Propeller Removal......................................... 62
Bravo Two Propeller Installation...................................... 62
Bravo Three Propeller Removal...................................... 63
Bravo Three Propeller Installation................................... 64
Checking...........................................................................65
Replacing Belt and/or Adjusting Tension.......................... 66
Flushing Attachments....................................................... 67
Sterndrive Water Pickups................................................. 67
Alternative Water Pickups................................................. 68
Painting Your Power Package.......................................... 74
Manual Single Point Drain System.............................. 79
Three Point Manual Drain System.............................. 79
Multi-Point Drain (MPD) System................................. 79
Air Actuated Single Point Drain System.......................... 80
Boat in the Water........................................................ 80
Boat out of the Water.................................................. 82
90-8M0053265 NOVEMBER 2010