Mercury 300XS OptiMax User Manual

TABLE OF CONTENTS
vii
Operating in Shallow Water.......................................................57
Starting The Engine...................................................................58
Gear Shifting..............................................................................61
Stopping The Engine.................................................................61
Maintenance
Power Package Care.................................................................62
Submerged Power Package......................................................62
Replacement Parts for Your Power Package............................62
EPA Emissions Regulations......................................................63
Inspection And Maintenance Schedule.....................................64
Flushing the Cooling System (Powerhead)...............................66
Flushing the Cooling System (Lower Unit)................................67
Top Cowl Removal and Installation...........................................68
Cleaning Care for Top Cowl......................................................68
Fuel System...............................................................................69
Steering Link Rod Fasteners.....................................................72
Fuses ........................................................................................73
Corrosion Control Anode...........................................................74
Spark Plug Inspection and Replacement...................................75
Battery Inspection .....................................................................76
Charging System Fusible Link...................................................77
Replacing the Propeller.............................................................77
Lubrication Points......................................................................80
Checking Power Trim Fluid (Single-Ram Trim Systems)..........82
Checking Power Trim Fluid (Three-Ram Trim Systems)...........83
Gearcase Lubricant...................................................................84
Storage
Storage Preparation...................................................................87
Protecting Internal Engine Components....................................90
Protecting External Outboard Components...............................90
Gearcase...................................................................................90
Positioning Outboard For Storage.............................................90
Battery Storage..........................................................................91

Mercury 300XS OptiMax Specifications

General

Engine Type	2-Stroke
Horsepower	300 HP
Alternator Output	60 amp / 756 watt
Gear Ratio	1.75:1
Starting System	Electric
Fuel System	2-Stage Direct Fuel Injection (DFI)
Weight	505 lbs / 229 kg
Cylinders	6
Steering	Hydraulic
Shaft Length	25"