Mercury 20 - Page 4

TABLE OF CONTENTS
iv
Filling Fuel Tank................................................................................................................................................ 23
FEATURES & CONTROLS
Tiller Handle Models......................................................................................................................................... 24
Remote Control Features.................................................................................................................................. 26
Tilting Outboard ............................................................................................................................................... 26
Shallow Water Operation..................................................................................................................................27
Setting The Operating Angle Of Your Outboard .............................................................................................. 28
Trim Tab Adjustment......................................................................................................................................... 29
OPERATION
Pre-Starting Check List.....................................................................................................................................31
Operating In Freezing Temperatures................................................................................................................31
Operating In Salt Water Or Polluted Water....................................................................................................... 31
Operating at High Elevations............................................................................................................................ 31
Pre-Starting Instructions................................................................................................................................... 31
Engine Break-in Procedure...............................................................................................................................32
Starting The Engine - Tiller Handle Models...................................................................................................... 32
Starting The Engine - Electric Start Remote Control Models............................................................................ 35
Gear Shifting.....................................................................................................................................................37
Stopping The Engine ....................................................................................................................................... 38
Emergency Starting.......................................................................................................................................... 39
MAINTENANCE
Outboard Care.................................................................................................................................................. 41
EPA Emissions................................................................................................................................................. 41
Inspection And Maintenance Schedule............................................................................................................. 42
Flushing The Cooling System........................................................................................................................... 42
Top Cowl Removal And Installation..................................................................................................................43
Battery Inspection ............................................................................................................................................ 44
Fuel System......................................................................................................................................................44
Exterior Care.....................................................................................................................................................45
Steering Link Rod Fasteners............................................................................................................................ 46
Fuse Replacement - Electric Start Remote Control Models............................................................................. 46
Corrosion Control Anode ................................................................................................................................. 47
Propeller Replacement..................................................................................................................................... 47
Spark Plug Inspection And Replacement......................................................................................................... 49
Carburetor Adjustments....................................................................................................................................50
Lubrication Points............................................................................................................................................. 52
Gearcase Lubrication........................................................................................................................................55
Submerged Outboard....................................................................................................................................... 56
STORAGE
Storage Preparation..........................................................................................................................................57
Protecting External Outboard Components...................................................................................................... 57
Protecting Internal Engine Components........................................................................................................... 58
Gearcase.......................................................................................................................................................... 58
Positioning Outboard For Storage.................................................................................................................... 58