Mercury L4NA 90

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Table of Contents7
Warranty Registration United States and Canada11
Transfer of Warranty United States and Canada11
Warranty Information11
Transfer of Mercury Product Protection (Extended Service Coverage) Plan United States and Canada12
Year Limited Warranty against Corrosion12
Warranty Coverage and Exclusions14
U.S. EPA Emissions Limited Warranty16
Emission Control System Components16
California Emissions Limited Warranty17
California Air Resources Board Explanation of Your California Emission Control Warranty Statement19
Emission Certification Star Label20
Warranty Policy-Australia and New Zealand21
Global Warranty Charts Outboard and Jets25
Boater's Responsibilities30
Before Operating Your Outboard30
Boat Horsepower Capacity30
General Information30
High-Speed and High-Performance Boat Operation31
Outboard Remote Control Models31
Lanyard Stop Switch31
Protecting People in the Water34
Exhaust Emissions34
Passenger Safety Message - Pontoon Boats and Deck Boats36
Wave and Wake Jumping38
Impact with Underwater Hazards39
Selecting Accessories for Your Outboard40
Safe Boating Recommendations40
Specifications43
Recording Serial Number45
Component Identification45
350 HP Component Identification46
Propeller Selection46
Transporting49
Trailering Boat/Outboard49
Fuel Recommendations51
Fuel Additives52
Low Permeation Fuel Hose Requirement52
Fuel and Oil52
EPA Pressurized Portable Fuel Tank Requirements53
Fuel Demand Valve (FDV) Requirement53
Mercury Marine's Pressurized Portable Fuel Tank53
Filling Fuel Tank54
Engine Oil Recommendations55
Checking and Adding Engine Oil55
Panel Mount Control Features and Operation58
Features and Controls58
Slim Binnacle Control Features and Operation60
Dual-Handle Console Control Features and Operation66
Shadow Mode Control with CAN Trackpad Features and Operation74
Warning System77
Power Trim and Tilt79
Important Daily Inspection before each Use83
Prestarting Check List83
Operation83
Operating in Freezing Temperatures84
Operating in Saltwater or Polluted Water84
Operating at High Elevations84
Propeller Selection84
Effects of Elevation and Weather on Performance85
Setting Trim Angle While Running Engine at Idle Speed86
Engine Break-In Procedure86
Fuel Supply Module Priming Procedure86
Starting the Engine88
Gear Shifting91
Stopping the Engine92
Outboard Care93
EPA Emissions Regulations93
Inspection and Maintenance Schedule94
Flushing the Cooling System96
Cowl Removal and Installation97
Cleaning Care for Top and Bottom Cowls99
Cleaning Care for the Powerhead (Saltwater Use)99
Battery Inspection99
Verado Engine Battery Specifications100
Air Filter (200-300)101
Air Filter (350, 350 Pro)102
Fuel System103
Corrosion Control Anodes106
Corrosion Control Anodes (350 HP)107
Trim Wear Pad Replacement107
Propeller Replacement - 25.4 MM (1.0 In.) Diameter Propeller Shaft108
Propeller Replacement - 31.75 MM (1-1/4 In.) Diameter Propeller Shaft111
Spark Plug Inspection and Replacement112
Fuses115
DTS Wiring System116
Accessory Drive Belt Inspection117
Checking Power Trim Fluid117
Checking Power Steering Fluid119
Changing Engine Oil119
Gearcase Lubrication122
Storage Preparation128
Protecting External Outboard Components128
Storage128
Protecting Internal Engine Components129
Gearcase129
Positioning Outboard for Storage129
Battery Storage129
Starter Motor will Not Crank the Engine130
Engine will Not Start130
Engine Starts but will Not Shift into Gear130
Engine Runs Erratically130
Troubleshooting130
Performance Loss131
Battery will Not Hold Charge131
Local Repair Service132
Service Away from Home132
Parts and Accessories Inquiries132
Service Assistance132
Owner Service Assistance132
Ordering Literature135
Outboard Installation137
Installation137
Maintenance Log144

Mercury L4NA 90 - Page 2

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